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The Cochrane Methodology Register (CMR) is a bibliography of publications that report on methods used in the conduct of controlled trials. It includes journal articles, books, and conference proceedings, and the content is sourced from MEDLINE and hand searches. CMR contains studies of methods used in reviews and more general methodological studies that could be relevant to anyone preparing systematic reviews. CMR records contain the title of the article, information on where it was published (bibliographic details), and, in some cases, a summary of the article. They do not contain the full text of the article.

The CMR was produced by the Cochrane UK, until 31st May 2012. There are currently no plans to reinstate the CMR and it is not receiving updates.* If you have any queries, please contact the Cochrane Community Service Team (support@cochrane.org).

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*Last update in January 2019.

Title
The efficacy of chiropractic manipulation for back pain: blinded review of relevant randomized clinical trials
Authors
Assendelft WJ, Koes BW, van der Heijden GJ, Bouter LM.
Source
Journal of Manipulative and Physiological Therapy
Date of publication
1992 Oct
Volume
15
Issue
8
Pages
487-494
Abstract

OBJECTIVE: To assess the efficacy of chiropractic for patients with back pain. DATA SOURCES: Randomized clinical trials (RCTs) on spinal manipulation were identified with a Medline search (1966-1990), by citration tracking, and by manual examination of the relevant chiropractic reference systems [Chiropractic Research Archives Collection and Index to Chiropractic Literature]. [Indexing terms, Medline; backache, musculoskeletal diseases, manipulation, osteopathy or chiropractic in combination with evaluation studies, outcome and process assessment, prospective studies, comparative studies, clinical trials or double blind method. Indexing terms, Chiropractic Research Archives Collection: backache therapy-chiropractic clinical trials, cost benefit analysis, evaluation studies--chiropractic, manipulation--spinal, prospective studies, sciatica-therapy. Indexing terms, Index to Chiropractic Literature, backache therapy, clinical trials, cost benefit analysis, intervertebral disc displacement-therapy.] STUDY SELECTION: All RCTs involving chiropractors as therapists. To find additional evidence from nonchiropractic RCTs, chiropractic standards similar to the type of treatment used in nonchiropractic trials were determined by a panel of blinded chiropractors. DATA EXTRACTION: Review by two blinded reviewers independently, using a list of methodological criteria, each of which was attached to a weight. The maximum was set at 100 points. DATA SYNTHESIS: We identified five chiropractic RCTs. No similarity to chiropractic standards could be detected in any of the nonchiropractic RCTs. No chiropractic RCT had a methodological score of more than 50 points. The authors of four of the trials report favorable results for chiropractic, while one refrains from drawing conclusions. The results of the chiropractic RCTs differed on the timing of maximal effect as well as on the subgroups showing the best treatment results. CONCLUSIONS: Although the small number of chiropractic RCTs and the poor general methodological quality precludes the drawing of strong conclusions, chiropractic seems to be an effective treatment of back pain. However, more studies with a better research methodology are clearly still needed.

CMR keywords
CMR: Critical appraisal - incorporation in reviews;CMRA3
Correspondence address
Department of Epidemiology and Biostatistics, University of Limburg, Maastricht, The Netherlands.
Reference typeJournal article