Journal of Acupuncture Research 2018; 35(4): 158-168
Published online November 26, 2018
https://doi.org/10.13045/jar.2018.00234
© Korean Acupuncture & Moxibustion Medicine Society
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
The purpose of this study was to review clinical studies of lumbar herniated intervertebral disc (LHIVD) treatment using acupuncture. Online database (PubMed, COCHRANE Library, EMBASE, CNKI, KISS, NDSL, KoreaMed, KMbase, OASIS, and KISTI) searches were conducted in May 2018. Studies that used acupuncture, electroacupuncture or warm needle acupuncture were included, along with participants who had lower back pain and radiating pain of their lower limbs consistent with radiological findings. Animal studies and nonclinical data were excluded. Data on treatment methods, site, time, frequency, period, and scales used were analyzed. There were 69 studies including 38 randomized controlled trials, 14 retrospective observational studies, and 17 clinical case studies. There were 51 acupoints selected for acupuncture treatment of LHIVD. The most frequently treated acupoints were BL23, BL25, BL24, and BL40. The mean treatment time, frequency, and duration were 26.06±6.70 mins, 6.29±1.70 times/week, and 20.57±11.04 days, respectively, in randomized controlled trials (RCT), and 18.62±4.60 mins, 11.58±3.99 times/week, and 34.43±17.62 days, respectively, in case/retrospective studies (mean±SD). This review collates information about acupuncture treatment methods for LHIVD.
Keywords acupuncture, electroacupuncture, herniated disc, intervertebral disc, traditional medicine
Lumbar herniated intervertebral disc (LHIVD) is a disorder in which part of or all of the nucleus herniates to the nerve roots. This is either due to degeneration of the intervertebral disc or external force, and results in the rupture of the fibrous ring. Symptoms include abnormal pain at the level of the affected vertebrae, lower back pain, and radiating pain of lower extremities caused by the neuromuscular stimulation of the herniated nucleus. In severe cases of LHIVD, motor neuron palsy such as foot drop syndrome, and sexual dysfunction may also occur [1].
Treatment of LHIVD can be classified into either surgical or conservative treatments. Only 5% to 10% of patients who complain of pain due to disc herniation require surgery because of failure of conservative treatment. Eighty percent of LHIVD patients experienced good results with non-surgical therapy. Therefore, there is a growing interest in Traditional Korean Medicine (TKM) treatment methods, focusing on conservative treatment [2]. TKM treatment includes acupuncture, moxibustion, herbal medicine, chuna, and herbal medicine [3]. Acupuncture treatment is based on the basic theories of TKM such as the yin and yang and meridian theories, which certain parts of the body are physically stimulated to cause reaction in the body. It is a typical treatment method of TKM, widely used for pain and paralytic diseases [4].
The purpose of this study was to review clinical studies that focused on acupuncture treatment of LHIVD. Shin et al [5] reported research trends in acupuncture treatment of LHIVD by searching PubMed. However, studies of acupuncture treatment in LHIVD using various databases other than PubMed were insufficient. Therefore, this study aimed to investigate the research trends of acupuncture treatment for LHIVD through assessment of various databases including PubMed. This review aimed to evaluate factors involved in TKM treatment, such as the treatment site, duration, frequency, period and scales. The results from this study may provide useful information to help optimize acupuncture treatment for LHIVD in clinical practice, and provide the basis for designing further research studies to look at clinical practice using acupuncture.
The following electronic databases were searched from their inception to May 2018: PubMed, Excerpta Medica dataBASE (EMBASE), COCHRANE Library, China National Knowledge Infrastructure (CNKI), Korean Studies Information Service System (KISS), National Digital Science Library (NDSL), KoreaMed, Korean Medical Database (KMbase), Oriental Medicine Advanced Searching Integrated System (OASIS), and Korea Institute of Science and Technology Information (KISTI).
The search terms were a combination of [diagnosis & treatment]. There are details of each strategy for PubMed, EMBASE, COCHRANE, CNKI, and Korean databases in
We selected research that used acupuncture as a main treatment of LHIVD. Studies that used electroacupuncture or warm needle acupuncture were also selected. However, pharmaco-acupuncture and acupotomy were excluded because their treatment mechanisms are distinct from those of acupuncture treatment. Only studies where participants diagnosed with LHIVD, disc bulging, protrusion, extrusion, and sequestration, and classification of LHIVD were included. Studies that were not examining the effect of acupuncture treatment for LHIVD were excluded. We also excluded non-human experimental studies. The research was conducted by each of the following methods of assessment (meta-analysis, systematic review of literature, randomized clinical study, retrospective observational study, and case study). Studies that did not provide clinical data were excluded.
Studies which treated patients diagnosed with LHIVD with acupuncture were included. Patients included in this study had lower back pain and radiating pain of lower limbs that were consistent with radiologic findings such as MRI, and CT. In addition, patients who were admitted to hospital or outpatient clinics were both included.
After removing duplicate studies, 2 independent reviewers conducted the first screening process by reading titles and abstracts of acquired research lists to exclude irrelevant studies. The reviewers read the full text of each article to exclude improper studies. Disagreement between the 2 reviewers was resolved by discussion with other reviewers. Reviewers extracted data from selected research related to the treatment method, site (acupoints or non-acupoints), time/frequency, period, and scales.
The studies were analyzed according to treatment method. Treatment methods were classified into acupuncture alone, warm needle acupuncture alone, electroacupuncture alone, acupuncture and other TKM treatment, acupuncture and other Western medical treatment, electroacupuncture and other TKM treatment, electroacupuncture and other Western medical treatment, warm needle acupuncture and other TKM treatment, and warm needle acupuncture and other Western medical treatment. Treatment sites of acupuncture were classified into acupoints and non-acupoints, and we analyzed which acupoints or which parts of the body were treated. Additionally, the mean and standard deviation of treatment time, frequency, and period were calculated. The analysis of treatment time, frequency, period and usage frequency of acupoints was conducted in RCT studies and case/retrospective studies separately. In addition, the proportion of each treatment method and additional TKM treatment was calculated.
The scales used for measuring the effect of acupuncture treatment of LHIVD were analyzed.
A total of 2413 articles were acquired and 1,627 articles were screened after duplicates were excluded. In the first screening process, 1,511 articles were excluded for the following reasons: 812 were not LHIVD studies, 99 were non-human experimental studies, 527 studies were about improper treatment, and 72 were review articles. In the second screening process by reading the full text, 47 articles were excluded; 32 were not about the effect of acupuncture treatment, 11 studies were a non-human experimental model, and 4 were review articles. As a result, 69 clinical studies about acupuncture treatment of LHIVD were retained for inclusion in the analysis (Fig. 1). There were 38 randomized controlled trials, 14 retrospective observational studies, and 17 case studies (Table 1).
Treatment methods were classified into acupuncture alone, warm needle acupuncture alone, electroacupuncture alone, acupuncture and other TKM treatment, acupuncture and other Western medical treatment, electro-acupuncture and other TKM treatment, electroacupuncture and other Western medical treatment, warm needle acupuncture and other TKM treatment, and warm needle acupuncture and other Western medical treatment.
Among the 69 studies analyzed, there were 8 studies examining the effect of acupuncture treatment alone, 11 on electroacupuncture alone, 3 studies about warm needle acupuncture alone, 41 studies about acupuncture and other TKM treatment, 2 studies about acupuncture and other Western medical treatment, 2 studies about electroacupuncture and other TKM treatment, 1 study about electroacupuncture and other Western medical treatment, and 1 study about warm needle acupuncture and other TKM treatment (Table 2). There were 44 studies that used TKM treatment as an additional treatment to acupuncture. Among them, 2 studies used moxibustion alone, 10 studies used chuna therapy alone, 6 studies used herbal medicine alone as an additional treatment, and 26 studies used complex TKM treatments including bee venom acupuncture, pharmacoacupuncture, moxibustion, herbal medicine, chuna, bloodletting therapy, and fumigation (Table 3). Traction, ozone injection, laser needle knife, and nerve block were used as Western medical treatments in addition to the acupuncture treatment.
There were 62 studies that used acupoints as the treatment site. A total of 51 acupoints were selected for acupuncture treatment of LHIVD. BL40, EX-B2, GB30, BL25 and BL23 were the most frequently used acupoints in RCT studies (Table 4). BL23, BL25, BL24, GB30, and BL40 were the most frequently treated acupoints in case/retrospective studies (Tables 5,6).
There were 7 studies that used non-acupoints. Muscles and trigger points were used as the treatment site in 4 studies. These studies treated the soft tissue around the spine and painful area based on anatomical position without mentioning acupuncture points. The gluteus maximus, gluteus medius, quadratus lumborum, multifidus, and erector spinae were treated with acupuncture. Two studies treated LHIVD with equilibrium acupuncture and 1 study examined the effect of scalp acupuncture in treating LHIVD.
For the time of acupuncture treatment, the mean treatment duration was 26.06±6.70 mins in RCT studies and 18.62±4.60 mins in case/retrospective studies (mean±SD). The treatment duration of treatment groups ranged from a minimum of 5 mins to a maximum of 45 mins (Figs. 2,3). The mean frequency of acupuncture treatment was 6.29 ±1.70 times/week in RCT studies and 11.58 ± 3.99 times/week (mean±SD) in case/retrospective studies (Figs. 4,5). The treated period ranged from 3 to 84 days, with an average of 20.57±11.04 days in RCT studies, and 34.43±17.62 days in case/retrospective studies (Figs. 6,7).
Effective rate, back specific dysfunction, and quality of life were used to measure outcome. Pain was the most frequently used outcome parameter (52 times). VAS (Visual Analogue Scale) was the most frequently used scale to measure pain (43 times). PRI (Pain Rating Index), NRS (Numerical Rating Scale), SF-MPQ (Short Form McGill Pain Questionnaire), PPI (Present Pain Intensity) were also used as scales to evaluate the pain intensity. Effective rate was the next most frequently used outcome measurement (35 times). GPE (Global Perceived Effect) was used to measure the effective rate after the acupuncture treatment. Back specific dysfunction was used to measure outcome on 18 occasions. ODI (Oswestry Disability Index) and JOA (Japanese Orthopedic Association) were used as scales to evaluate back specific dysfunction. Quality of life was used as an outcome measurement twice. SF-36 (Short Form Health Survey 36) and EQ-5D (EuroQOL-5 Dimensions) were used as scales to assess quality of life (Table 6).
Acupuncture has been an effective treatment method in TKM for many years. There have been many studies investigating factors that can influence the treatment effect of acupuncture. Treatment site, time, frequency, and duration have been thought to be important contributing factors influencing the effect of acupuncture treatment [77], and studies are being conducted to determine the influence of these factors. In this study, an investigation was conducted to examine these acupuncture treatment methods for LHIVD, with the aim of providing information to determine the treatment methods in clinical practice or designing further clinical research on acupuncture treatment for LHIVD.
The analysis of treatment site showed that acupoints located in the waist such as BL23, BL24, BL25, and GB30, were frequently used in both RCT studies and case/retrospective studies. BL40 which is in other parts of the body, such as the legs or hips, were also frequently used.
There are 2 ways of selecting acupoints based on the distance from the lesion, either by treating local acupoints or distal acupoints. Local acupoints are those points near to the painful sites, whilst distal acupoints are those located further away [78]. Local acupoints are usually used to treat musculoskeletal pain and pain due to trigger points, and tender points that are painful on pressure, through peripheral mechanisms such as vasodilation and segmental inhibition [79]. Nanna et al [80] revealed the anti-nociceptive effect of local acupoints in the treatment of musculoskeletal pain. It was proposed that the pain relief mechanism resulted from inhibition of the adenosine binding to the adenosine A1 receptor in the proximal rather than the central pathway. As shown in this study, most of the RCT and case/retrospective studies used the local acupoints like BL23, BL24, BL25, and GB30, mainly to treat lower back pain caused by LHIVD.
There are studies examining the effects of different duration of needle retention during acupuncture treatment. Cui et al [81] investigated the effect of different retaining needle time on pain threshold, and concluded that 25-30 mins of retaining time was the most effective in pain control. In addition, adenosine, a neuromodulator with anti-nociceptive properties, was released and an analgesic effect was strongest when the retaining needle time was 30 mins [82]. The treatment duration was different between RCT studies and case/retrospective studies. The mean treatment duration was 26.06±6.70 mins in RCT studies and 18.62±4.60 mins in case/retrospective studies (mean±SD). The reason for this difference may be explained by differences in retaining time. To obtain the best therapeutic effect for treating patients, at least more than 25 mins, and ideally 30 mins of retaining needle time, appeared to provide the best therapeutic benefit. However, there are practical concerns to consider such as manpower and cost in the clinical practice. In the process of satisfying these factors, retaining needle time would have been modulated.
The North American Spine Society recommends conservative treatment for LHIVD for 6 weeks before considering surgical treatment [82]. The results from this analysis suggest that 6 weeks of treatment period would be efficient for treating LHIVD with acupuncture in clinical practice. The treatment duration appeared to be different between RCT studies and case/retrospective studies, with an average of 20.57±11.04 days in RCT studies and 34.43±17.62 days in case/retrospective studies. The reason for this difference seems to be the differences in the type of participants. In every case/retrospective study, the patients treated by acupuncture were those who were admitted to the TKM hospital. In contrast, almost all the RCT studies were conducted in the outpatients department. Acupuncture treatment would have to be conducted for longer periods in patients who were admitted to obtain optimal therapeutic effect, but there are many obstacles such as cost, and loss of patients when conducting long-term follow-up studies. So, considering factors like treatment effect, cost, and possibility of patient loss, it may be better if the treatment period in RCT studies were designed to be shorter than in case/retrospective studies.
In summary, this process will provide more information to help TKM practitioners to decide the appropriate treatment methods for clinical practice, or for designing clinical research studies.
The limitation of this study is that the search database was limited to specific databases and did not cover all the studies. Several studies have been written in Japanese or in other languages regarding the treatment methods of acupuncture used for treating LHIVD. Therefore, it is difficult to conclude that all the research trends of acupuncture treatment for LHIVD are included in this study, as the number of final retrieved documents is small. Additionally, the process of evaluating the quality of searched studies was not conducted and the treatment effects of acupuncture or risk of bias of studies were not evaluated. Retaining a larger number of studies through searching more databases and improving the processes of analyzing the risk of bias and comparative analysis of treatment effects are necessary to provide more evidence for treating LHIVD with acupuncture treatment in clinical practice.
A total of 69 studies were selected based on the search strategies set out in this study. There were 38 randomized controlled trials, 14 retrospective observational studies, and 17 clinical case studies. The results of the analysis are as follows.
1. Treatment methods were classified as acupuncture treatment alone, electro-acupuncture alone, warm needle acupuncture alone, acupuncture and other TKM treatment, acupuncture and other Western medical treatment, electroacupuncture and other TKM treatment, electroacupuncture and other Western medical treatment, warm needle acupuncture and other TKM treatment, and warm needle acupuncture and other Western medical treatment. A combination of acupuncture and TKM treatments used as additional treatment were most frequently used.
2. BL23, BL25, BL24, and BL40 were the most frequently treated acupoints. Mean of treatment time, frequency, and duration were 26.06±6.70 mins, 6.29±1.70 times/week, and 20.57±11.04 days, respectively, in RCT studies, and 18.62±4.60 mins, 11.58±3.99 times/week, and 34.43±17.62 days, respectively, in case/retrospective studies (mean±SD).
3. Pain, Effective rate, back specific dysfunction, and quality of life were used as outcome measurements. Pain was the most frequently used outcome parameter. VAS, PRI, NRS, SF-MPQ, PPI, GPE, ODI, JOA, and SF-36 were used as scales for evaluating outcome measurements. (Table 6).
Flow chart of study inclusion/exclusion criteria.
EMBASE, Excerpta Medica dataBASE; CNKI, China national knowledge infrastructure; LHIVD, lumbar herniated intervertebral disc.
Characteristics of the Studies Included in This Review.
Type of study | Treatment method | Treatment site (acupoints/non-acupoints) | Treatment time/frequency/period | Outcome domain (scale) | |
---|---|---|---|---|---|
Xue Z [7] (2018) | RCT | Electroacupuncture | BL25, EX-B2 | 20 min, 4 times/wk, 28 d | Pain (NRS), |
Back specific dysfunction (ODI) | |||||
EH Tuzun [8] (2017) | RCT | Acupuncture | Non-acupoints (Gleuteus medius, quadratus lumborum, multifidus) | Not recorded, 2 times/wk, 21 d | Pain (VAS, SF-MPQ) |
Hu J [9] (2014) | RCT | Acupuncture | BL25, EX-B2, GB30, BL40, GB34, ST36, GB40, BL57 | Not recorded, 1 time/d, 10 d | Pain (VAS) |
Effective rate (GPE) | |||||
Hou S [10] (2009) | RCT | Acupuncture | BL25, BL23, GV4, BL26, BL24, GB30, EX-B2, BL56, GB31, GB39, BL40, GB34 | 30 min, 1 time/d, 10 d | Effective rate (GPE) |
Pain (PRI) | |||||
Ding W [11] (2014) | RCT | Acupuncture | Non-acupoints (Equilibrium Acupuncture) | Not recorded, 1 time/d, 3 d | Effective rate (GPE), |
Pain (VAS, PRI) | |||||
Chen MR [12] (2009) | RCT | Warm needle acupuncture | BL23, BL25, GB30, BL40, BL60 | 20 min, 1 time/d, 10 d | Effective rate (GPE), |
Pain (VAS) | |||||
Chen XH [13] (2006) | RCT | Electroacupuncture | BL23, BL24, BL25, BL26, GB30, BL37, BL57, BL40, BL60 | 30 min, 1 time/d, 28 d | Pain (VAS) |
Du Z [14] (2009) | RCT | Electroacupuncture | EX-B2 | 45 min, 3 times/wk, 28 d | Effective rate (GPE), |
Pain (VAS), | |||||
Back specific dysfunction (JOA) | |||||
Li YQ [15] (2006) | RCT | Acupuncture | BL23, BL25, BL54, BL40, BL54 | 30 min, 1 time/d, 30 d | Effective rate (GPE), |
Pain (VAS) | |||||
Shan YL [16] (2011) | RCT | Electroacupuncture | EX-B2, BL24, BL26, BL25, BL54, GB34, BL60, SP9 | 30 min, 1 time/d, 14 d | Effective rate (GPE), |
Pain (VAS) | |||||
Lu W [17] (2002) | RCT | Electroacupuncture | EX-B2 | 20 min, 1 time/d, 14 d | Pain (VAS) |
Fan Y [18] (2009) | RCT | Warm needle acupuncture | BL54, GB30, BL36, BL37, BL40, BL57, BL60 | 30 min, 1 time/d, 30 d | Effective rate (GPE), |
Pain (VAS) | |||||
Li LX [19] (2006) | RCT | Acupuncture | EX-B2, BL40, BL63, KI3, GB30, GB36 | 20 min, 1 time/d, 10 d | Effective rate (GPE), |
Pain (VAS) | |||||
Zhang ZH [20] (2004) | RCT | Electroacupuncture | BL23, BL24, BL25, GB30, GB34, BL40, EX-B2 | 20 min, 1 time/d, 20 d | Effective rate (GPE), |
Pain (VAS) | |||||
Feng H [21] (2012) | RCT | Acupuncture | Non-acupoints (Trigger points, gluteus maximus, multifidus, erector spinae) | 15 min, 1 time/3 d, 60 d | Effective rate (GPE), |
Pain (PRI) | |||||
Geng X [22] (2009) | RCT | Electroacupuncture | EX-B2, BL54, GB30, BL40, GB34 | 30 min, 1 time/d, 20 d | Effective rate (GPE) |
Wang XG [23] (2008) | RCT | Warm needle acupuncture | EX-B2, BL54, BL40, GB34 | Not recorded, 1 time/d, 14 d | Effective rate (GPE) |
Pain (PRI) | |||||
Wu YC [24] (2004) | RCT | Electroacupuncture | GV3, GB30, EX-B2 | 20 min, 1 time/d, 20 d | Effective rate (GPE) |
Zhang BM [25] (2008) | RCT | Electroacupuncture | EX-B2, GV3, GB30, GB43, GB34, BL37, BL62 | 20 min, 1 time/d, 20 d | Effective rate (GPE) |
Gao H [26] (2007) | RCT | Acupuncture | BL23, BL25, EX-B2, BL54, BL40, BL56, GB30, GB31, GB34, GB39 | 30 min, 1 time/d, 10 d | Effective rate (GPE), |
Pain (PPI) | |||||
Huang CH [27] (2007) | RCT | Electroacupuncture | BL25, BL26, BL23, BL40, Ashi point, LR13, BL62 | 30 min, 1 time/d, 10 d | Effective rate (GPE) |
Ma LX [28] (2010) | RCT | Electroacupuncture | BL40, GB30, GB34, BL23, EX-B2, BL25, ST36, BL60, LR3 | 30 min, 1 time/d, 20 d | Effective rate (GPE) |
Liu DM [29] (2018) | RCT | Acupuncture + Moxibustion | BL23, BL25, Ashi point, BL26, BL56, BL36, GB31, ST36, GB39, GB40, LR3, BL60 | 20 min, 1 time/d, 20 d | Effective rate (GPE), |
Pain (NRS) | |||||
Back specific dysfunction (JOA) | |||||
Jiang JJ [30] (2017) | RCT | Acupuncture + Western medical treatment | BL40, GB43 | 20 min, 1 time/d, 14 d | Effective rate (GPE), |
Pain (NRS), | |||||
Back specific dysfunction (JOA, ODI) | |||||
Guo JG [31] (2013) | RCT | Acupuncture + Chuna | Non-acupoints (Equilibrium Acupuncture) | 10 min, 1 time/d, 10 d | Effective rate (GPE), |
Pain (VAS), | |||||
Back specific dysfunction (ODI) | |||||
He Q [32] (2010) | RCT | Electroacupuncture + Chuna | EX-B2, BL23, BL25, BL40, GB30, GB34, BL60 | 30 min, 1 time/d, 10 d | Effective rate (GPE), |
Pain (VAS) | |||||
Ji XL [33] (2015) | RCT | Acupuncture + Western medical treatment | BL23, BL25, GB30, GB43, BL40, BL56 | 30 min, 1 time/d, 28 d | Effective rate (GPE), |
Pain (VAS) | |||||
Qu M [34] (2010) | RCT | Electrocupuncture + Western medical treatment | EX-B2, GB30, BL54, GB34, BL37, BL40, BL57, BL60, GB31, GB39, GB40, KI16 | 30 min, 1 time/2 d, 28 d | Effective rate (GPE), |
Pain (VAS), | |||||
Back specific dysfunction (ODI) | |||||
Hong DF [35] (2013) | RCT | Acupuncture + Chuna | EX-B2 | 30 min, 1 time/d, 20 d | Effective rate (GPE) |
Chen Y [36] (2010) | RCT | Acupuncture + Chuna | EX-B2, BL54, BL40, BL23 | 20 min, 1 time/d, 20 d | Back specific dysfunction (JOA), |
Pain (PRI) | |||||
Zhao BX [37] (2008) | RCT | Acupuncture + Chuna | BL23, BL25, BL31, BL32, BL33, BL34, BL54, BL40, KI16, GB37 | 30 min, 1 time/5 d, 40 d | Back specific dysfunction (JOA) |
Quality of life (EQ-5D) | |||||
Ma S [38] (2010) | RCT | Acupuncture + Moxibustion | BL23, BL25, BL24, BL40, BL56, GB34, GB43 | 30 min, 1 time/d, 21 d | Effective rate (GPE), |
Back specific dysfunction (JOA) | |||||
Chen RH [39] (2000) | RCT | Acupuncture + Chuna | EX-B2, GB30, GB34, BL36, BL40 | 30 min, 1 time/d, 20 d | Effective rate (GPE), |
Pain (PRI) | |||||
Fu XS [40] (2011) | RCT | Acupuncture + Chuna | EX-B2, BL23, GV3, BL25, GB30, BL40, GB34, KI3, Ashi point | 20 min, 1 time/d, 42 d | Effective rate (GPE) |
Hu Y [41] (2013) | RCT | Acupuncture + Chuna | BL23, BL54, GB30, BL36, BL37, BL40, GB31, GB34, BL56 | 30 min, 1 time/d, 10 d | Effective rate (GPE) |
Liu X [42] (2009) | RCT | Warm needle acupuncture + Chuna | EX-B2, BL54, BL32, GB30, BL40, GB34, BL60, ST36 | 30 min, 1 time/d, Not recorded | Effective rate (GPE) |
Xiong J [43] (2013) | RCT | Acupuncture + Chuna | BL22, BL23, BL24, BL25, BL26, BL54, GB30, BL37, BL60 | 30 min, 1 time/d, 28 d | Effective rate (GPE) |
Liu L [44] (2009) | RCT | Electroacupuncture + Herbal medicine | BL25, BL26, BL27, GV3 | 30 min, 1 time/d, 20 d | Effective rate (GPE) |
Kim SJ [45] (2010) | Retrospective | Acupuncture + Herbal medicine | BL23, BL24, BL25, BL52, BL31, BL32, BL33, BL34, GB30 | 20 min, 2 times/d, 28 d | Effective rate (GPE) |
Lee EK [46] (2008) | Retrospective | Acupuncture + Herbal medicine | BL22, BL23, BL24, BL25, BL52, BL31, BL32, BL33, BL34, GB30 | 20 min, 2 time/d, 20 d | Effective rate (GPE) |
Yang MS [47] (2010) | Retrospective | Acupuncture + TKM treatment | BL23, BL52, BL25, GB30, GB34, BL60, KI3, ST36 | 20 min, 2t ime/d, not recorded | Pain (VAS) |
Lee EJ [48] (2016) | Retrospective | Acupuncture + TKM treatment | Non-acupoints (Ashi point, Trigger point) | 20 min, 2 times/d, 21 d | Pain (VAS) |
Oh SK [49] (2005) | Retrospective | Acupuncture + TKM treatment | BL22, BL23, BL24, BL25, EX-B2 | 5 min, 2 time/d, 30 d | Pain (VAS) |
Jang SG [50] (2003) | Retrospective | Acupuncture + Herbal medicine | Non-acupoints (Scalp Acupuncture) | 15 min, 2 time/d, 30 d | Effective rate (GPE) |
Kim JH [51] (2003) | Retrospective | Acupuncture + TKM treatment | BL23, BL24, BL25, GB30, BL32, BL52 | 20 min, 1 time/d, 21 d | Pain (VAS) |
Youn YS [52] (2008) | Retrospective | Acupuncture + TKM treatment | BL22, BL23, BL24, BL25, BL26, GV3 | 15 min, 2 time/d, 56 d | Pain (VAS), |
Quality of life (SF-36) | |||||
Back specific dysfunction (ODI), | |||||
Lee EG [53] (2009) | Retrospective | Acupuncture + TKM treatment | Ashi point, ST36, SP6, LR3 | 15 min, 2 time/d, 34 d | Pain (VAS) |
Kim JS [54] (2015) | Retrospective | Acupuncture + TKM treatment | BL23, BL24, BL25, BL26, BL51, BL52, BL40, GB34, BL60, BL62 | 15 min, 2 times/d, 32 d | Pain (VAS) |
Song HG [55] (2009) | Retrospective | Acupuncture + TKM treatment | BL23, BL24, BL25, BL26, BL52, GV3, BL40, GB34, BL60, BL56, BL56, GB30, GB34 | 20 min, 2 times/d, 21 d | Pain (VAS), |
Back specific dysfunction (ODI) | |||||
Lim SS [56] (2016) | Retrospective | Acupuncture + TKM treatment | BL23, BL24, BL25, BL26, BL31, BL40, BL52, BL53, GB30, GB34, GB35, GB39, GB40, GB43 | 15 min, 2 times/d, 21 d | Pain (VAS), |
Back specific dysfunction (ODI) | |||||
Lee SY [57] (2011) | Retrospective | Acupuncture + TKM treatment | BL23, BL52, BL25, Ashi point, BL56, BL56, BL60 | 20 min, 2 times/wk, 84 d | Pain (VAS), |
Back specific dysfunction (ODI) | |||||
Kym YH [58] (2017) | Retrospective | Acupuncture + TKM treatment | BL23, BL24, BL25, BL26, BL56 | 15 min, 2 times/d, 14 d | Pain (VAS) |
Kim HS [59] (2017) | Case study | Acupuncture + TKM treatment | BL23, BL24, BL25, BL26, GV3, BL31, BL32, BL33, BL34, GB30, BL54, BL40, ST36, GB34, GB39, BL56, BL56, BL60 | 15 min, 2 times/d, 40 d | Pain (VAS), |
Back specific dysfunction (ODI) | |||||
Kim JY [60] (2006) | Case study | Acupuncture + TKM treatment | BL23, BL24, BL25, BL26, GV4, GV3, BL56, GB30, BL36, BL40 | 15 min, 4 times/wk, 35 d | Pain (VAS) |
Song KC [61] (2017) | Case study | Acupuncture + TKM treatment | BL23, BL40, SP6, GB39 | 20 min, 1 time/d, 35 d | Pain (VAS) |
Hong SP [62] (2016) | Case study | Acupuncture + TKM treatment | BL22, BL23, BL24, BL25, BL26, BL27, BL28, BL31, BL32, BL33, BL34, BL53, BL54, EX-B2 | 20 min, 2 times/d, 19 d | Pain (NRS) |
Back specific dysfunction (ODI) | |||||
Kwon HK [63] (2014) | Case study | Acupuncture + TKM treatment | GV4, GB36, BL23, BL28 | 20 min, 2 times/d, 13 d | Pain (VAS), |
Back specific dysfunction (ODI) | |||||
Cho HS [64] (2012) | Case study | Acupuncture + TKM treatment | EX-B2, BL22, BL23, BL24, BL25 | 20 min, 1 time/d, 40 d | Pain (VAS), |
Back specific dysfunction (ODI) | |||||
Kim JH [65] (2011) | Case study | Acupuncture + TKM treatment | BL23, BL25, GV3, BL40 | 15 min, 1 time/d, 37 d | Pain (VAS) |
`Lee BH [66] (2001) | Case study | Acupuncture + TKM treatment | BL23, BL24, BL25, BL26, GB30, BL32, ST36, BL40, SP6 | 20 min, 1 time/d, 45 d | Pain (VAS) |
Rhee SH [67] (2006) | Case study | Acupuncture + TKM treatment | BL22, BL23, BL24, BL25, EX-B2, GB30, BL40, BL65, GB34 | 20 min, 2 time/d, 12 d | Pain (VAS) |
Kim SJ [68] (2006) | Case study | Acupuncture + TKM treatment | Non-acupoints (Quadratus lumborum, Erector spinae, Gluteus maximus, Gluteus medius, piriformis) | 30 min, 2 times/d, 30 d | Pain (VAS) |
Lim GM [69] (2011) | Case study | Acupuncture + TKM treatment | BL23, BL52, BL24, BL25, BL26, GV3, Ashi point, SI3, TE3, GB30, BL40, GB34, BL56, BL56, BL60, GB41 | 20 min, 2 time/d, 42 d | Pain (VAS, SF-MPQ) |
Back specific dysfunction (ODI) | |||||
Park HH [70] (2008) | Case study | Acupuncture + Herbal medicine | BL40. GB34, ST36, GB39 | 30 min, 1 time/d, 20 d | Pain (VAS) |
Kim JY [71] (2010) | Case study | Acupuncture + TKM treatment | BL22, BL23, BL24, BL25, BL26, SP9, ST36, BL67 | 20 min, 2 times/d, 28 d | Pain (VAS) |
Kang JH [72] (2004) | Case study | Acupuncture + Herbal medicine | BL22, BL23, BL24, BL25, BL26, GV4, GV3, BL40, GB30, BL56, GB31, ST36, GB39, GB40 | 20 min, 2 times/d, 47 d | Pain (VAS) |
You KG [73] (2011) | Case study | Acupuncture + TKM treatment | EX-B2, Ashi point | 20 min, 2 times/d, 84 d | Pain (VAS) |
Kim SN [74] (2005) | Case study | Acupuncture + TKM treatment | CV3, CV2, CV6, CV4, SP6, SP9, CV1, BL31, BL32, BL33, BL34 | 20 min, 2 time/d, 49 d | Pain (VAS) |
Hwang GT [75] (2005) | Case study | Acupuncture + TKM treatment | BL25, BL23, GB30, Ashi point, SI3, BL60 | 20 min, 3 times/wk, 45 d | Pain (VAS) |
GPE, global perceived effect; NRS, numerical rating scale; VAS, visual analogue scale; ODI, Oswestry disability index; JOA, Japanese orthopedic association; SF-MPQ, short form McGill pain questionnaire; SF-36, short form health survey 36; PRI, pain rating index; EQ-5D, EuroQOL-5 dimensions; PPI, present pain intensity.
Treatment Methods of Acupuncture for LHIVD.
Treatment | |
---|---|
Acupuncture | 8 (11.6) |
Electroacupuncture | 11 (15.9) |
Warm needle acupuncture | 3 (4.4) |
Acupuncture + TKM treatment | 41 (59.4) |
Acupuncture + Western medical treatment | 2 (2.9) |
Electroacupuncture + TKM treatment | 2 (2.9) |
Electroacupuncture + Western medical treatment | 1 (1.5) |
Warm needle acupuncture + TKM treatment | 1 (1.5) |
Warm needle acupuncture + Western medical treatment | 0 |
Total | 69 |
LHIVD, lumbar herniated intervertebral disc; TKM, traditional Korean medicine.
TKM Treatment Used in Addition to Acupuncture.
TKM | |
---|---|
Moxibustion | 2 (4.5) |
Chuna | 10 (22.7) |
Herbal medicine | 6 (13.6) |
Complex TKM treatment | 26 (59.1) |
Total | 44 (100) |
TKM, traditional Korean medicine.
Acupoints Used to Treat LHIVD in RCT Studies.
Acupoints | |
---|---|
BL40 | 24 |
EX-B2 | 21 |
GB30 | 20 |
BL25 | 19 |
BL23 | 17 |
GB34 | 16 |
BL54 | 13 |
BL60 | 10 |
BL26 | 7 |
BL24 | 6 |
BL56 | 6 |
BL37 | 6 |
GB31 | 5 |
ST36 | 4 |
GV3 | 4 |
BL57 | 4 |
Ashi point | 3 |
GB40 | 3 |
BL32 | 2 |
LR3 | 2 |
KI3 | 2 |
BL62 | 2 |
KI16 | 2 |
BL22 | 1 |
BL31 | 1 |
BL33 | 1 |
BL34 | 1 |
GV4 | 1 |
SP9 | 1 |
GB36 | 1 |
BL27 | 1 |
LR13 | 1 |
BL63 | 1 |
GB37 | 1 |
LHIVD, lumbar herniated intervertebral disc; RCT, randomized controlled trials.
Acupoints Used to Treat LHIVD in Case Studies and Retrospective Studies.
Acupoints | |
---|---|
BL23 | 24 |
BL25 | 22 |
BL24 | 18 |
GB30 | 13 |
BL40 | 12 |
BL26 | 12 |
BL56 | 11 |
GB34 | 9 |
GB39 | 9 |
BL52 | 9 |
BL22 | 8 |
BL60 | 7 |
ST36 | 7 |
GV3 | 7 |
BL32 | 7 |
Ashi point | 6 |
BL31 | 6 |
EX-B2 | 5 |
BL33 | 5 |
BL34 | 5 |
SP6 | 4 |
GV4 | 3 |
BL54 | 2 |
GB40 | 2 |
SP9 | 2 |
SI3 | 2 |
BL53 | 2 |
BL28 | 2 |
GB31 | 1 |
LR3 | 1 |
KI3 | 1 |
BL62 | 1 |
GB36 | 1 |
BL27 | 1 |
CV1 | 1 |
BL51 | 1 |
BL67 | 1 |
TE3 | 1 |
CV3 | 1 |
GB41 | 1 |
GB35 | 1 |
BL65 | 1 |
CV6 | 1 |
CV4 | 1 |
CV2 | 1 |
LHIVD, lumbar herniated intervertebral disc
Outcome Domains and Scales Used to Evaluate Treatment Effect.
Outcome domains | Study Number | Scales ( |
---|---|---|
Pain | 52 | VAS (43), PRI (6), NRS (4), SF-MPQ (2), PPI (1) |
Effective rate | 35 | GPE (35) |
Back specific dysfunction | 18 | ODI (13), JOA scale (6), |
Quality of life | 13 | EQ-5D (1), SF-36 (1) |
GPE, global perceived effect; NRS, numerical rating scale; VAS, visual analogue scale; ODI, Oswestry disability index; JOA, Japanese orthopedic association; SF-MPQ, short form McGill pain questionnaire; SF-36, short form health survey 36; PRI, pain rating index; EQ-5D, EuroQOL-5 dimensions; PPI, present pain intensity.
Journal of Acupuncture Research 2018; 35(4): 158-168
Published online November 26, 2018 https://doi.org/10.13045/jar.2018.00234
Copyright © Korean Acupuncture & Moxibustion Medicine Society.
Sung Jin Kim, Seong Mok Jeong, Chang Hee Lee, Jin-Young Yoon, Sung Eun Shim, Jeong Hyon Kim, Bon Hyuk Goo, Yeon Cheol Park, Yong-Hyun Baek, Sang Soo Nam, Byung-Kwan Seo*
1Department of Acupuncture & Moxibustion Medicine, College of Korean Medicine, Kyung Hee University, Seoul, Korea
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
The purpose of this study was to review clinical studies of lumbar herniated intervertebral disc (LHIVD) treatment using acupuncture. Online database (PubMed, COCHRANE Library, EMBASE, CNKI, KISS, NDSL, KoreaMed, KMbase, OASIS, and KISTI) searches were conducted in May 2018. Studies that used acupuncture, electroacupuncture or warm needle acupuncture were included, along with participants who had lower back pain and radiating pain of their lower limbs consistent with radiological findings. Animal studies and nonclinical data were excluded. Data on treatment methods, site, time, frequency, period, and scales used were analyzed. There were 69 studies including 38 randomized controlled trials, 14 retrospective observational studies, and 17 clinical case studies. There were 51 acupoints selected for acupuncture treatment of LHIVD. The most frequently treated acupoints were BL23, BL25, BL24, and BL40. The mean treatment time, frequency, and duration were 26.06±6.70 mins, 6.29±1.70 times/week, and 20.57±11.04 days, respectively, in randomized controlled trials (RCT), and 18.62±4.60 mins, 11.58±3.99 times/week, and 34.43±17.62 days, respectively, in case/retrospective studies (mean±SD). This review collates information about acupuncture treatment methods for LHIVD.
Keywords: acupuncture, electroacupuncture, herniated disc, intervertebral disc, traditional medicine
Lumbar herniated intervertebral disc (LHIVD) is a disorder in which part of or all of the nucleus herniates to the nerve roots. This is either due to degeneration of the intervertebral disc or external force, and results in the rupture of the fibrous ring. Symptoms include abnormal pain at the level of the affected vertebrae, lower back pain, and radiating pain of lower extremities caused by the neuromuscular stimulation of the herniated nucleus. In severe cases of LHIVD, motor neuron palsy such as foot drop syndrome, and sexual dysfunction may also occur [1].
Treatment of LHIVD can be classified into either surgical or conservative treatments. Only 5% to 10% of patients who complain of pain due to disc herniation require surgery because of failure of conservative treatment. Eighty percent of LHIVD patients experienced good results with non-surgical therapy. Therefore, there is a growing interest in Traditional Korean Medicine (TKM) treatment methods, focusing on conservative treatment [2]. TKM treatment includes acupuncture, moxibustion, herbal medicine, chuna, and herbal medicine [3]. Acupuncture treatment is based on the basic theories of TKM such as the yin and yang and meridian theories, which certain parts of the body are physically stimulated to cause reaction in the body. It is a typical treatment method of TKM, widely used for pain and paralytic diseases [4].
The purpose of this study was to review clinical studies that focused on acupuncture treatment of LHIVD. Shin et al [5] reported research trends in acupuncture treatment of LHIVD by searching PubMed. However, studies of acupuncture treatment in LHIVD using various databases other than PubMed were insufficient. Therefore, this study aimed to investigate the research trends of acupuncture treatment for LHIVD through assessment of various databases including PubMed. This review aimed to evaluate factors involved in TKM treatment, such as the treatment site, duration, frequency, period and scales. The results from this study may provide useful information to help optimize acupuncture treatment for LHIVD in clinical practice, and provide the basis for designing further research studies to look at clinical practice using acupuncture.
The following electronic databases were searched from their inception to May 2018: PubMed, Excerpta Medica dataBASE (EMBASE), COCHRANE Library, China National Knowledge Infrastructure (CNKI), Korean Studies Information Service System (KISS), National Digital Science Library (NDSL), KoreaMed, Korean Medical Database (KMbase), Oriental Medicine Advanced Searching Integrated System (OASIS), and Korea Institute of Science and Technology Information (KISTI).
The search terms were a combination of [diagnosis & treatment]. There are details of each strategy for PubMed, EMBASE, COCHRANE, CNKI, and Korean databases in
We selected research that used acupuncture as a main treatment of LHIVD. Studies that used electroacupuncture or warm needle acupuncture were also selected. However, pharmaco-acupuncture and acupotomy were excluded because their treatment mechanisms are distinct from those of acupuncture treatment. Only studies where participants diagnosed with LHIVD, disc bulging, protrusion, extrusion, and sequestration, and classification of LHIVD were included. Studies that were not examining the effect of acupuncture treatment for LHIVD were excluded. We also excluded non-human experimental studies. The research was conducted by each of the following methods of assessment (meta-analysis, systematic review of literature, randomized clinical study, retrospective observational study, and case study). Studies that did not provide clinical data were excluded.
Studies which treated patients diagnosed with LHIVD with acupuncture were included. Patients included in this study had lower back pain and radiating pain of lower limbs that were consistent with radiologic findings such as MRI, and CT. In addition, patients who were admitted to hospital or outpatient clinics were both included.
After removing duplicate studies, 2 independent reviewers conducted the first screening process by reading titles and abstracts of acquired research lists to exclude irrelevant studies. The reviewers read the full text of each article to exclude improper studies. Disagreement between the 2 reviewers was resolved by discussion with other reviewers. Reviewers extracted data from selected research related to the treatment method, site (acupoints or non-acupoints), time/frequency, period, and scales.
The studies were analyzed according to treatment method. Treatment methods were classified into acupuncture alone, warm needle acupuncture alone, electroacupuncture alone, acupuncture and other TKM treatment, acupuncture and other Western medical treatment, electroacupuncture and other TKM treatment, electroacupuncture and other Western medical treatment, warm needle acupuncture and other TKM treatment, and warm needle acupuncture and other Western medical treatment. Treatment sites of acupuncture were classified into acupoints and non-acupoints, and we analyzed which acupoints or which parts of the body were treated. Additionally, the mean and standard deviation of treatment time, frequency, and period were calculated. The analysis of treatment time, frequency, period and usage frequency of acupoints was conducted in RCT studies and case/retrospective studies separately. In addition, the proportion of each treatment method and additional TKM treatment was calculated.
The scales used for measuring the effect of acupuncture treatment of LHIVD were analyzed.
A total of 2413 articles were acquired and 1,627 articles were screened after duplicates were excluded. In the first screening process, 1,511 articles were excluded for the following reasons: 812 were not LHIVD studies, 99 were non-human experimental studies, 527 studies were about improper treatment, and 72 were review articles. In the second screening process by reading the full text, 47 articles were excluded; 32 were not about the effect of acupuncture treatment, 11 studies were a non-human experimental model, and 4 were review articles. As a result, 69 clinical studies about acupuncture treatment of LHIVD were retained for inclusion in the analysis (Fig. 1). There were 38 randomized controlled trials, 14 retrospective observational studies, and 17 case studies (Table 1).
Treatment methods were classified into acupuncture alone, warm needle acupuncture alone, electroacupuncture alone, acupuncture and other TKM treatment, acupuncture and other Western medical treatment, electro-acupuncture and other TKM treatment, electroacupuncture and other Western medical treatment, warm needle acupuncture and other TKM treatment, and warm needle acupuncture and other Western medical treatment.
Among the 69 studies analyzed, there were 8 studies examining the effect of acupuncture treatment alone, 11 on electroacupuncture alone, 3 studies about warm needle acupuncture alone, 41 studies about acupuncture and other TKM treatment, 2 studies about acupuncture and other Western medical treatment, 2 studies about electroacupuncture and other TKM treatment, 1 study about electroacupuncture and other Western medical treatment, and 1 study about warm needle acupuncture and other TKM treatment (Table 2). There were 44 studies that used TKM treatment as an additional treatment to acupuncture. Among them, 2 studies used moxibustion alone, 10 studies used chuna therapy alone, 6 studies used herbal medicine alone as an additional treatment, and 26 studies used complex TKM treatments including bee venom acupuncture, pharmacoacupuncture, moxibustion, herbal medicine, chuna, bloodletting therapy, and fumigation (Table 3). Traction, ozone injection, laser needle knife, and nerve block were used as Western medical treatments in addition to the acupuncture treatment.
There were 62 studies that used acupoints as the treatment site. A total of 51 acupoints were selected for acupuncture treatment of LHIVD. BL40, EX-B2, GB30, BL25 and BL23 were the most frequently used acupoints in RCT studies (Table 4). BL23, BL25, BL24, GB30, and BL40 were the most frequently treated acupoints in case/retrospective studies (Tables 5,6).
There were 7 studies that used non-acupoints. Muscles and trigger points were used as the treatment site in 4 studies. These studies treated the soft tissue around the spine and painful area based on anatomical position without mentioning acupuncture points. The gluteus maximus, gluteus medius, quadratus lumborum, multifidus, and erector spinae were treated with acupuncture. Two studies treated LHIVD with equilibrium acupuncture and 1 study examined the effect of scalp acupuncture in treating LHIVD.
For the time of acupuncture treatment, the mean treatment duration was 26.06±6.70 mins in RCT studies and 18.62±4.60 mins in case/retrospective studies (mean±SD). The treatment duration of treatment groups ranged from a minimum of 5 mins to a maximum of 45 mins (Figs. 2,3). The mean frequency of acupuncture treatment was 6.29 ±1.70 times/week in RCT studies and 11.58 ± 3.99 times/week (mean±SD) in case/retrospective studies (Figs. 4,5). The treated period ranged from 3 to 84 days, with an average of 20.57±11.04 days in RCT studies, and 34.43±17.62 days in case/retrospective studies (Figs. 6,7).
Effective rate, back specific dysfunction, and quality of life were used to measure outcome. Pain was the most frequently used outcome parameter (52 times). VAS (Visual Analogue Scale) was the most frequently used scale to measure pain (43 times). PRI (Pain Rating Index), NRS (Numerical Rating Scale), SF-MPQ (Short Form McGill Pain Questionnaire), PPI (Present Pain Intensity) were also used as scales to evaluate the pain intensity. Effective rate was the next most frequently used outcome measurement (35 times). GPE (Global Perceived Effect) was used to measure the effective rate after the acupuncture treatment. Back specific dysfunction was used to measure outcome on 18 occasions. ODI (Oswestry Disability Index) and JOA (Japanese Orthopedic Association) were used as scales to evaluate back specific dysfunction. Quality of life was used as an outcome measurement twice. SF-36 (Short Form Health Survey 36) and EQ-5D (EuroQOL-5 Dimensions) were used as scales to assess quality of life (Table 6).
Acupuncture has been an effective treatment method in TKM for many years. There have been many studies investigating factors that can influence the treatment effect of acupuncture. Treatment site, time, frequency, and duration have been thought to be important contributing factors influencing the effect of acupuncture treatment [77], and studies are being conducted to determine the influence of these factors. In this study, an investigation was conducted to examine these acupuncture treatment methods for LHIVD, with the aim of providing information to determine the treatment methods in clinical practice or designing further clinical research on acupuncture treatment for LHIVD.
The analysis of treatment site showed that acupoints located in the waist such as BL23, BL24, BL25, and GB30, were frequently used in both RCT studies and case/retrospective studies. BL40 which is in other parts of the body, such as the legs or hips, were also frequently used.
There are 2 ways of selecting acupoints based on the distance from the lesion, either by treating local acupoints or distal acupoints. Local acupoints are those points near to the painful sites, whilst distal acupoints are those located further away [78]. Local acupoints are usually used to treat musculoskeletal pain and pain due to trigger points, and tender points that are painful on pressure, through peripheral mechanisms such as vasodilation and segmental inhibition [79]. Nanna et al [80] revealed the anti-nociceptive effect of local acupoints in the treatment of musculoskeletal pain. It was proposed that the pain relief mechanism resulted from inhibition of the adenosine binding to the adenosine A1 receptor in the proximal rather than the central pathway. As shown in this study, most of the RCT and case/retrospective studies used the local acupoints like BL23, BL24, BL25, and GB30, mainly to treat lower back pain caused by LHIVD.
There are studies examining the effects of different duration of needle retention during acupuncture treatment. Cui et al [81] investigated the effect of different retaining needle time on pain threshold, and concluded that 25-30 mins of retaining time was the most effective in pain control. In addition, adenosine, a neuromodulator with anti-nociceptive properties, was released and an analgesic effect was strongest when the retaining needle time was 30 mins [82]. The treatment duration was different between RCT studies and case/retrospective studies. The mean treatment duration was 26.06±6.70 mins in RCT studies and 18.62±4.60 mins in case/retrospective studies (mean±SD). The reason for this difference may be explained by differences in retaining time. To obtain the best therapeutic effect for treating patients, at least more than 25 mins, and ideally 30 mins of retaining needle time, appeared to provide the best therapeutic benefit. However, there are practical concerns to consider such as manpower and cost in the clinical practice. In the process of satisfying these factors, retaining needle time would have been modulated.
The North American Spine Society recommends conservative treatment for LHIVD for 6 weeks before considering surgical treatment [82]. The results from this analysis suggest that 6 weeks of treatment period would be efficient for treating LHIVD with acupuncture in clinical practice. The treatment duration appeared to be different between RCT studies and case/retrospective studies, with an average of 20.57±11.04 days in RCT studies and 34.43±17.62 days in case/retrospective studies. The reason for this difference seems to be the differences in the type of participants. In every case/retrospective study, the patients treated by acupuncture were those who were admitted to the TKM hospital. In contrast, almost all the RCT studies were conducted in the outpatients department. Acupuncture treatment would have to be conducted for longer periods in patients who were admitted to obtain optimal therapeutic effect, but there are many obstacles such as cost, and loss of patients when conducting long-term follow-up studies. So, considering factors like treatment effect, cost, and possibility of patient loss, it may be better if the treatment period in RCT studies were designed to be shorter than in case/retrospective studies.
In summary, this process will provide more information to help TKM practitioners to decide the appropriate treatment methods for clinical practice, or for designing clinical research studies.
The limitation of this study is that the search database was limited to specific databases and did not cover all the studies. Several studies have been written in Japanese or in other languages regarding the treatment methods of acupuncture used for treating LHIVD. Therefore, it is difficult to conclude that all the research trends of acupuncture treatment for LHIVD are included in this study, as the number of final retrieved documents is small. Additionally, the process of evaluating the quality of searched studies was not conducted and the treatment effects of acupuncture or risk of bias of studies were not evaluated. Retaining a larger number of studies through searching more databases and improving the processes of analyzing the risk of bias and comparative analysis of treatment effects are necessary to provide more evidence for treating LHIVD with acupuncture treatment in clinical practice.
A total of 69 studies were selected based on the search strategies set out in this study. There were 38 randomized controlled trials, 14 retrospective observational studies, and 17 clinical case studies. The results of the analysis are as follows.
1. Treatment methods were classified as acupuncture treatment alone, electro-acupuncture alone, warm needle acupuncture alone, acupuncture and other TKM treatment, acupuncture and other Western medical treatment, electroacupuncture and other TKM treatment, electroacupuncture and other Western medical treatment, warm needle acupuncture and other TKM treatment, and warm needle acupuncture and other Western medical treatment. A combination of acupuncture and TKM treatments used as additional treatment were most frequently used.
2. BL23, BL25, BL24, and BL40 were the most frequently treated acupoints. Mean of treatment time, frequency, and duration were 26.06±6.70 mins, 6.29±1.70 times/week, and 20.57±11.04 days, respectively, in RCT studies, and 18.62±4.60 mins, 11.58±3.99 times/week, and 34.43±17.62 days, respectively, in case/retrospective studies (mean±SD).
3. Pain, Effective rate, back specific dysfunction, and quality of life were used as outcome measurements. Pain was the most frequently used outcome parameter. VAS, PRI, NRS, SF-MPQ, PPI, GPE, ODI, JOA, and SF-36 were used as scales for evaluating outcome measurements. (Table 6).
Flow chart of study inclusion/exclusion criteria.
EMBASE, Excerpta Medica dataBASE; CNKI, China national knowledge infrastructure; LHIVD, lumbar herniated intervertebral disc.
Duration of treatment time in case studies and retrospective studies.
Frequency of treatment in case studies and retrospective studies.
Duration of treatment period in case studies and retrospective studies.
Table 1 .. Characteristics of the Studies Included in This Review..
Type of study | Treatment method | Treatment site (acupoints/non-acupoints) | Treatment time/frequency/period | Outcome domain (scale) | |
---|---|---|---|---|---|
Xue Z [7] (2018) | RCT | Electroacupuncture | BL25, EX-B2 | 20 min, 4 times/wk, 28 d | Pain (NRS), |
Back specific dysfunction (ODI) | |||||
EH Tuzun [8] (2017) | RCT | Acupuncture | Non-acupoints (Gleuteus medius, quadratus lumborum, multifidus) | Not recorded, 2 times/wk, 21 d | Pain (VAS, SF-MPQ) |
Hu J [9] (2014) | RCT | Acupuncture | BL25, EX-B2, GB30, BL40, GB34, ST36, GB40, BL57 | Not recorded, 1 time/d, 10 d | Pain (VAS) |
Effective rate (GPE) | |||||
Hou S [10] (2009) | RCT | Acupuncture | BL25, BL23, GV4, BL26, BL24, GB30, EX-B2, BL56, GB31, GB39, BL40, GB34 | 30 min, 1 time/d, 10 d | Effective rate (GPE) |
Pain (PRI) | |||||
Ding W [11] (2014) | RCT | Acupuncture | Non-acupoints (Equilibrium Acupuncture) | Not recorded, 1 time/d, 3 d | Effective rate (GPE), |
Pain (VAS, PRI) | |||||
Chen MR [12] (2009) | RCT | Warm needle acupuncture | BL23, BL25, GB30, BL40, BL60 | 20 min, 1 time/d, 10 d | Effective rate (GPE), |
Pain (VAS) | |||||
Chen XH [13] (2006) | RCT | Electroacupuncture | BL23, BL24, BL25, BL26, GB30, BL37, BL57, BL40, BL60 | 30 min, 1 time/d, 28 d | Pain (VAS) |
Du Z [14] (2009) | RCT | Electroacupuncture | EX-B2 | 45 min, 3 times/wk, 28 d | Effective rate (GPE), |
Pain (VAS), | |||||
Back specific dysfunction (JOA) | |||||
Li YQ [15] (2006) | RCT | Acupuncture | BL23, BL25, BL54, BL40, BL54 | 30 min, 1 time/d, 30 d | Effective rate (GPE), |
Pain (VAS) | |||||
Shan YL [16] (2011) | RCT | Electroacupuncture | EX-B2, BL24, BL26, BL25, BL54, GB34, BL60, SP9 | 30 min, 1 time/d, 14 d | Effective rate (GPE), |
Pain (VAS) | |||||
Lu W [17] (2002) | RCT | Electroacupuncture | EX-B2 | 20 min, 1 time/d, 14 d | Pain (VAS) |
Fan Y [18] (2009) | RCT | Warm needle acupuncture | BL54, GB30, BL36, BL37, BL40, BL57, BL60 | 30 min, 1 time/d, 30 d | Effective rate (GPE), |
Pain (VAS) | |||||
Li LX [19] (2006) | RCT | Acupuncture | EX-B2, BL40, BL63, KI3, GB30, GB36 | 20 min, 1 time/d, 10 d | Effective rate (GPE), |
Pain (VAS) | |||||
Zhang ZH [20] (2004) | RCT | Electroacupuncture | BL23, BL24, BL25, GB30, GB34, BL40, EX-B2 | 20 min, 1 time/d, 20 d | Effective rate (GPE), |
Pain (VAS) | |||||
Feng H [21] (2012) | RCT | Acupuncture | Non-acupoints (Trigger points, gluteus maximus, multifidus, erector spinae) | 15 min, 1 time/3 d, 60 d | Effective rate (GPE), |
Pain (PRI) | |||||
Geng X [22] (2009) | RCT | Electroacupuncture | EX-B2, BL54, GB30, BL40, GB34 | 30 min, 1 time/d, 20 d | Effective rate (GPE) |
Wang XG [23] (2008) | RCT | Warm needle acupuncture | EX-B2, BL54, BL40, GB34 | Not recorded, 1 time/d, 14 d | Effective rate (GPE) |
Pain (PRI) | |||||
Wu YC [24] (2004) | RCT | Electroacupuncture | GV3, GB30, EX-B2 | 20 min, 1 time/d, 20 d | Effective rate (GPE) |
Zhang BM [25] (2008) | RCT | Electroacupuncture | EX-B2, GV3, GB30, GB43, GB34, BL37, BL62 | 20 min, 1 time/d, 20 d | Effective rate (GPE) |
Gao H [26] (2007) | RCT | Acupuncture | BL23, BL25, EX-B2, BL54, BL40, BL56, GB30, GB31, GB34, GB39 | 30 min, 1 time/d, 10 d | Effective rate (GPE), |
Pain (PPI) | |||||
Huang CH [27] (2007) | RCT | Electroacupuncture | BL25, BL26, BL23, BL40, Ashi point, LR13, BL62 | 30 min, 1 time/d, 10 d | Effective rate (GPE) |
Ma LX [28] (2010) | RCT | Electroacupuncture | BL40, GB30, GB34, BL23, EX-B2, BL25, ST36, BL60, LR3 | 30 min, 1 time/d, 20 d | Effective rate (GPE) |
Liu DM [29] (2018) | RCT | Acupuncture + Moxibustion | BL23, BL25, Ashi point, BL26, BL56, BL36, GB31, ST36, GB39, GB40, LR3, BL60 | 20 min, 1 time/d, 20 d | Effective rate (GPE), |
Pain (NRS) | |||||
Back specific dysfunction (JOA) | |||||
Jiang JJ [30] (2017) | RCT | Acupuncture + Western medical treatment | BL40, GB43 | 20 min, 1 time/d, 14 d | Effective rate (GPE), |
Pain (NRS), | |||||
Back specific dysfunction (JOA, ODI) | |||||
Guo JG [31] (2013) | RCT | Acupuncture + Chuna | Non-acupoints (Equilibrium Acupuncture) | 10 min, 1 time/d, 10 d | Effective rate (GPE), |
Pain (VAS), | |||||
Back specific dysfunction (ODI) | |||||
He Q [32] (2010) | RCT | Electroacupuncture + Chuna | EX-B2, BL23, BL25, BL40, GB30, GB34, BL60 | 30 min, 1 time/d, 10 d | Effective rate (GPE), |
Pain (VAS) | |||||
Ji XL [33] (2015) | RCT | Acupuncture + Western medical treatment | BL23, BL25, GB30, GB43, BL40, BL56 | 30 min, 1 time/d, 28 d | Effective rate (GPE), |
Pain (VAS) | |||||
Qu M [34] (2010) | RCT | Electrocupuncture + Western medical treatment | EX-B2, GB30, BL54, GB34, BL37, BL40, BL57, BL60, GB31, GB39, GB40, KI16 | 30 min, 1 time/2 d, 28 d | Effective rate (GPE), |
Pain (VAS), | |||||
Back specific dysfunction (ODI) | |||||
Hong DF [35] (2013) | RCT | Acupuncture + Chuna | EX-B2 | 30 min, 1 time/d, 20 d | Effective rate (GPE) |
Chen Y [36] (2010) | RCT | Acupuncture + Chuna | EX-B2, BL54, BL40, BL23 | 20 min, 1 time/d, 20 d | Back specific dysfunction (JOA), |
Pain (PRI) | |||||
Zhao BX [37] (2008) | RCT | Acupuncture + Chuna | BL23, BL25, BL31, BL32, BL33, BL34, BL54, BL40, KI16, GB37 | 30 min, 1 time/5 d, 40 d | Back specific dysfunction (JOA) |
Quality of life (EQ-5D) | |||||
Ma S [38] (2010) | RCT | Acupuncture + Moxibustion | BL23, BL25, BL24, BL40, BL56, GB34, GB43 | 30 min, 1 time/d, 21 d | Effective rate (GPE), |
Back specific dysfunction (JOA) | |||||
Chen RH [39] (2000) | RCT | Acupuncture + Chuna | EX-B2, GB30, GB34, BL36, BL40 | 30 min, 1 time/d, 20 d | Effective rate (GPE), |
Pain (PRI) | |||||
Fu XS [40] (2011) | RCT | Acupuncture + Chuna | EX-B2, BL23, GV3, BL25, GB30, BL40, GB34, KI3, Ashi point | 20 min, 1 time/d, 42 d | Effective rate (GPE) |
Hu Y [41] (2013) | RCT | Acupuncture + Chuna | BL23, BL54, GB30, BL36, BL37, BL40, GB31, GB34, BL56 | 30 min, 1 time/d, 10 d | Effective rate (GPE) |
Liu X [42] (2009) | RCT | Warm needle acupuncture + Chuna | EX-B2, BL54, BL32, GB30, BL40, GB34, BL60, ST36 | 30 min, 1 time/d, Not recorded | Effective rate (GPE) |
Xiong J [43] (2013) | RCT | Acupuncture + Chuna | BL22, BL23, BL24, BL25, BL26, BL54, GB30, BL37, BL60 | 30 min, 1 time/d, 28 d | Effective rate (GPE) |
Liu L [44] (2009) | RCT | Electroacupuncture + Herbal medicine | BL25, BL26, BL27, GV3 | 30 min, 1 time/d, 20 d | Effective rate (GPE) |
Kim SJ [45] (2010) | Retrospective | Acupuncture + Herbal medicine | BL23, BL24, BL25, BL52, BL31, BL32, BL33, BL34, GB30 | 20 min, 2 times/d, 28 d | Effective rate (GPE) |
Lee EK [46] (2008) | Retrospective | Acupuncture + Herbal medicine | BL22, BL23, BL24, BL25, BL52, BL31, BL32, BL33, BL34, GB30 | 20 min, 2 time/d, 20 d | Effective rate (GPE) |
Yang MS [47] (2010) | Retrospective | Acupuncture + TKM treatment | BL23, BL52, BL25, GB30, GB34, BL60, KI3, ST36 | 20 min, 2t ime/d, not recorded | Pain (VAS) |
Lee EJ [48] (2016) | Retrospective | Acupuncture + TKM treatment | Non-acupoints (Ashi point, Trigger point) | 20 min, 2 times/d, 21 d | Pain (VAS) |
Oh SK [49] (2005) | Retrospective | Acupuncture + TKM treatment | BL22, BL23, BL24, BL25, EX-B2 | 5 min, 2 time/d, 30 d | Pain (VAS) |
Jang SG [50] (2003) | Retrospective | Acupuncture + Herbal medicine | Non-acupoints (Scalp Acupuncture) | 15 min, 2 time/d, 30 d | Effective rate (GPE) |
Kim JH [51] (2003) | Retrospective | Acupuncture + TKM treatment | BL23, BL24, BL25, GB30, BL32, BL52 | 20 min, 1 time/d, 21 d | Pain (VAS) |
Youn YS [52] (2008) | Retrospective | Acupuncture + TKM treatment | BL22, BL23, BL24, BL25, BL26, GV3 | 15 min, 2 time/d, 56 d | Pain (VAS), |
Quality of life (SF-36) | |||||
Back specific dysfunction (ODI), | |||||
Lee EG [53] (2009) | Retrospective | Acupuncture + TKM treatment | Ashi point, ST36, SP6, LR3 | 15 min, 2 time/d, 34 d | Pain (VAS) |
Kim JS [54] (2015) | Retrospective | Acupuncture + TKM treatment | BL23, BL24, BL25, BL26, BL51, BL52, BL40, GB34, BL60, BL62 | 15 min, 2 times/d, 32 d | Pain (VAS) |
Song HG [55] (2009) | Retrospective | Acupuncture + TKM treatment | BL23, BL24, BL25, BL26, BL52, GV3, BL40, GB34, BL60, BL56, BL56, GB30, GB34 | 20 min, 2 times/d, 21 d | Pain (VAS), |
Back specific dysfunction (ODI) | |||||
Lim SS [56] (2016) | Retrospective | Acupuncture + TKM treatment | BL23, BL24, BL25, BL26, BL31, BL40, BL52, BL53, GB30, GB34, GB35, GB39, GB40, GB43 | 15 min, 2 times/d, 21 d | Pain (VAS), |
Back specific dysfunction (ODI) | |||||
Lee SY [57] (2011) | Retrospective | Acupuncture + TKM treatment | BL23, BL52, BL25, Ashi point, BL56, BL56, BL60 | 20 min, 2 times/wk, 84 d | Pain (VAS), |
Back specific dysfunction (ODI) | |||||
Kym YH [58] (2017) | Retrospective | Acupuncture + TKM treatment | BL23, BL24, BL25, BL26, BL56 | 15 min, 2 times/d, 14 d | Pain (VAS) |
Kim HS [59] (2017) | Case study | Acupuncture + TKM treatment | BL23, BL24, BL25, BL26, GV3, BL31, BL32, BL33, BL34, GB30, BL54, BL40, ST36, GB34, GB39, BL56, BL56, BL60 | 15 min, 2 times/d, 40 d | Pain (VAS), |
Back specific dysfunction (ODI) | |||||
Kim JY [60] (2006) | Case study | Acupuncture + TKM treatment | BL23, BL24, BL25, BL26, GV4, GV3, BL56, GB30, BL36, BL40 | 15 min, 4 times/wk, 35 d | Pain (VAS) |
Song KC [61] (2017) | Case study | Acupuncture + TKM treatment | BL23, BL40, SP6, GB39 | 20 min, 1 time/d, 35 d | Pain (VAS) |
Hong SP [62] (2016) | Case study | Acupuncture + TKM treatment | BL22, BL23, BL24, BL25, BL26, BL27, BL28, BL31, BL32, BL33, BL34, BL53, BL54, EX-B2 | 20 min, 2 times/d, 19 d | Pain (NRS) |
Back specific dysfunction (ODI) | |||||
Kwon HK [63] (2014) | Case study | Acupuncture + TKM treatment | GV4, GB36, BL23, BL28 | 20 min, 2 times/d, 13 d | Pain (VAS), |
Back specific dysfunction (ODI) | |||||
Cho HS [64] (2012) | Case study | Acupuncture + TKM treatment | EX-B2, BL22, BL23, BL24, BL25 | 20 min, 1 time/d, 40 d | Pain (VAS), |
Back specific dysfunction (ODI) | |||||
Kim JH [65] (2011) | Case study | Acupuncture + TKM treatment | BL23, BL25, GV3, BL40 | 15 min, 1 time/d, 37 d | Pain (VAS) |
`Lee BH [66] (2001) | Case study | Acupuncture + TKM treatment | BL23, BL24, BL25, BL26, GB30, BL32, ST36, BL40, SP6 | 20 min, 1 time/d, 45 d | Pain (VAS) |
Rhee SH [67] (2006) | Case study | Acupuncture + TKM treatment | BL22, BL23, BL24, BL25, EX-B2, GB30, BL40, BL65, GB34 | 20 min, 2 time/d, 12 d | Pain (VAS) |
Kim SJ [68] (2006) | Case study | Acupuncture + TKM treatment | Non-acupoints (Quadratus lumborum, Erector spinae, Gluteus maximus, Gluteus medius, piriformis) | 30 min, 2 times/d, 30 d | Pain (VAS) |
Lim GM [69] (2011) | Case study | Acupuncture + TKM treatment | BL23, BL52, BL24, BL25, BL26, GV3, Ashi point, SI3, TE3, GB30, BL40, GB34, BL56, BL56, BL60, GB41 | 20 min, 2 time/d, 42 d | Pain (VAS, SF-MPQ) |
Back specific dysfunction (ODI) | |||||
Park HH [70] (2008) | Case study | Acupuncture + Herbal medicine | BL40. GB34, ST36, GB39 | 30 min, 1 time/d, 20 d | Pain (VAS) |
Kim JY [71] (2010) | Case study | Acupuncture + TKM treatment | BL22, BL23, BL24, BL25, BL26, SP9, ST36, BL67 | 20 min, 2 times/d, 28 d | Pain (VAS) |
Kang JH [72] (2004) | Case study | Acupuncture + Herbal medicine | BL22, BL23, BL24, BL25, BL26, GV4, GV3, BL40, GB30, BL56, GB31, ST36, GB39, GB40 | 20 min, 2 times/d, 47 d | Pain (VAS) |
You KG [73] (2011) | Case study | Acupuncture + TKM treatment | EX-B2, Ashi point | 20 min, 2 times/d, 84 d | Pain (VAS) |
Kim SN [74] (2005) | Case study | Acupuncture + TKM treatment | CV3, CV2, CV6, CV4, SP6, SP9, CV1, BL31, BL32, BL33, BL34 | 20 min, 2 time/d, 49 d | Pain (VAS) |
Hwang GT [75] (2005) | Case study | Acupuncture + TKM treatment | BL25, BL23, GB30, Ashi point, SI3, BL60 | 20 min, 3 times/wk, 45 d | Pain (VAS) |
GPE, global perceived effect; NRS, numerical rating scale; VAS, visual analogue scale; ODI, Oswestry disability index; JOA, Japanese orthopedic association; SF-MPQ, short form McGill pain questionnaire; SF-36, short form health survey 36; PRI, pain rating index; EQ-5D, EuroQOL-5 dimensions; PPI, present pain intensity..
Table 2 .. Treatment Methods of Acupuncture for LHIVD..
Treatment | |
---|---|
Acupuncture | 8 (11.6) |
Electroacupuncture | 11 (15.9) |
Warm needle acupuncture | 3 (4.4) |
Acupuncture + TKM treatment | 41 (59.4) |
Acupuncture + Western medical treatment | 2 (2.9) |
Electroacupuncture + TKM treatment | 2 (2.9) |
Electroacupuncture + Western medical treatment | 1 (1.5) |
Warm needle acupuncture + TKM treatment | 1 (1.5) |
Warm needle acupuncture + Western medical treatment | 0 |
Total | 69 |
LHIVD, lumbar herniated intervertebral disc; TKM, traditional Korean medicine..
Table 3 .. TKM Treatment Used in Addition to Acupuncture..
TKM | |
---|---|
Moxibustion | 2 (4.5) |
Chuna | 10 (22.7) |
Herbal medicine | 6 (13.6) |
Complex TKM treatment | 26 (59.1) |
Total | 44 (100) |
TKM, traditional Korean medicine..
Table 4 .. Acupoints Used to Treat LHIVD in RCT Studies..
Acupoints | |
---|---|
BL40 | 24 |
EX-B2 | 21 |
GB30 | 20 |
BL25 | 19 |
BL23 | 17 |
GB34 | 16 |
BL54 | 13 |
BL60 | 10 |
BL26 | 7 |
BL24 | 6 |
BL56 | 6 |
BL37 | 6 |
GB31 | 5 |
ST36 | 4 |
GV3 | 4 |
BL57 | 4 |
Ashi point | 3 |
GB40 | 3 |
BL32 | 2 |
LR3 | 2 |
KI3 | 2 |
BL62 | 2 |
KI16 | 2 |
BL22 | 1 |
BL31 | 1 |
BL33 | 1 |
BL34 | 1 |
GV4 | 1 |
SP9 | 1 |
GB36 | 1 |
BL27 | 1 |
LR13 | 1 |
BL63 | 1 |
GB37 | 1 |
LHIVD, lumbar herniated intervertebral disc; RCT, randomized controlled trials..
Table 5 .. Acupoints Used to Treat LHIVD in Case Studies and Retrospective Studies..
Acupoints | |
---|---|
BL23 | 24 |
BL25 | 22 |
BL24 | 18 |
GB30 | 13 |
BL40 | 12 |
BL26 | 12 |
BL56 | 11 |
GB34 | 9 |
GB39 | 9 |
BL52 | 9 |
BL22 | 8 |
BL60 | 7 |
ST36 | 7 |
GV3 | 7 |
BL32 | 7 |
Ashi point | 6 |
BL31 | 6 |
EX-B2 | 5 |
BL33 | 5 |
BL34 | 5 |
SP6 | 4 |
GV4 | 3 |
BL54 | 2 |
GB40 | 2 |
SP9 | 2 |
SI3 | 2 |
BL53 | 2 |
BL28 | 2 |
GB31 | 1 |
LR3 | 1 |
KI3 | 1 |
BL62 | 1 |
GB36 | 1 |
BL27 | 1 |
CV1 | 1 |
BL51 | 1 |
BL67 | 1 |
TE3 | 1 |
CV3 | 1 |
GB41 | 1 |
GB35 | 1 |
BL65 | 1 |
CV6 | 1 |
CV4 | 1 |
CV2 | 1 |
LHIVD, lumbar herniated intervertebral disc.
Table 6 .. Outcome Domains and Scales Used to Evaluate Treatment Effect..
Outcome domains | Study Number | Scales ( |
---|---|---|
Pain | 52 | VAS (43), PRI (6), NRS (4), SF-MPQ (2), PPI (1) |
Effective rate | 35 | GPE (35) |
Back specific dysfunction | 18 | ODI (13), JOA scale (6), |
Quality of life | 13 | EQ-5D (1), SF-36 (1) |
GPE, global perceived effect; NRS, numerical rating scale; VAS, visual analogue scale; ODI, Oswestry disability index; JOA, Japanese orthopedic association; SF-MPQ, short form McGill pain questionnaire; SF-36, short form health survey 36; PRI, pain rating index; EQ-5D, EuroQOL-5 dimensions; PPI, present pain intensity..
Hye Kyung Baek*, Young Jun Kim, Yeon Sun Lee, Hye Ri Jo, Mi So Park, Dong Guk Shin, Hyun A Shim
Journal of Acupuncture Research 2022; 39(4): 275-282Min-Gi Jo, Jun-Yeong Jang, Min-Jung Ko, Sang-Yeup Chae, Seungeun Lee, Dongmin Lee, Won Suk Sung, Jung-Hyun Kim, Bonhyuk Goo, Yeon-Cheol Park, Yong-Hyeon Baek, Sang-Soo Nam, Byung-Kwan Seo*
Journal of Acupuncture Research 2022; 39(4): 258-266Hyo-Seung Huh*, Wu-Jin Jeong, Ki-Tae Park, Sun-Ho Lee, Sun-A Kim, Min-Kyung Kim, Hye-Gyeong Kim
Journal of Acupuncture Research 2021; 38(1): 32-40
Flow chart of study inclusion/exclusion criteria.
EMBASE, Excerpta Medica dataBASE; CNKI, China national knowledge infrastructure; LHIVD, lumbar herniated intervertebral disc.
|@|~(^,^)~|@|Duration of treatment time in RCT studies.
RCT, randomized controlled trial.
|@|~(^,^)~|@|Duration of treatment time in case studies and retrospective studies.
|@|~(^,^)~|@|Frequency of treatment in RCT studies.
RCT, randomized controlled trial.
|@|~(^,^)~|@|Frequency of treatment in case studies and retrospective studies.
|@|~(^,^)~|@|Duration of treatment period in RCT studies.
RCT, randomized controlled trial.
|@|~(^,^)~|@|Duration of treatment period in case studies and retrospective studies.