The effectiveness of manual therapy, physiotherapy and continued treatment by the general practitioner for chronic nonspecific back and neck complaints: design of a randomized clinical trial.

There are strong arguments for publishing research protocols before the results are available. First, it permits a critical judgment of the design unbiased by knowledge of the results, and second it may prevent publication bias. We present the design of a randomized trial on the effectiveness of manual therapy, physiotherapy, (continued) treatment by the general practitioner and a placebo treatment for patients (n = 300) with chronic (more than 6 wk) nonspecific back and neck complaints.