Examination of a Subgroup of Patients With Chronic Low Back Pain Likely to Benefit More From Pilates-Based Exercises Compared to an Educational Booklet.

OBJECTIVE: To investigate whether 2 previously published classification approaches, the updated treatment-based classification system and a Pilates subgroup defined by a preliminary clinical prediction rule, could identify patients with chronic low back pain who would benefit more from Pilates exercises compared to an educational booklet. DESIGN: Secondary analysis of a randomized controlled trial. METHODS: Two hundred twenty-two patients received advice and were randomly allocated to a group that received an educational booklet with no additional treatment (n = 74) or a group that received Pilates-based exercise treatment (n = 148) 2 or 3 times a week. At baseline, using a treatment-based classification system, patients were classified as having a good prognosis (positive movement control) or a poor prognosis. Similarly, using the Pilates clinical prediction rule, patients were classified as having a good prognosis (positive) or a poor prognosis (negative). The analysis was conducted using linear regression models to analyze the interaction between subgroup characteristics and treatment effect size, with changes in pain and disability from baseline to 6 weeks after randomization as dependent variables. RESULTS: None of the interaction terms for pain and disability were statistically significant. The treatment effect of Pilates versus an educational booklet was similar in all subgroups. CONCLUSION: The treatment-based classification system and the Pilates clinical prediction rule did not differentiate subgroups of patients with chronic low back pain who were more or less likely to benefit more from Pilates compared to an educational booklet. J Orthop Sports Phys Ther 2020;50(4):189-197. Epub 23 Aug 2019. doi:10.2519/jospt.2019.8839.

The role of the therapeutic alliance on pain relief in musculoskeletal rehabilitation: A systematic review.

The aim of this systematic review was to investigate the role of therapeutic alliance in pain relief in patients with musculoskeletal disorders treated by physiotherapy. Manual and database searches (Medline, Embase, ISI Web of Knowledge, CINAHL, PEDro, Lilacs, Cochrane Library, and PsycINFO) were performed with no restrictions of language and publication date. We included prospective studies with samples of patients undergoing physiotherapy for musculoskeletal conditions, with one measure of therapeutic alliance and the outcome pain. Methodological quality was assessed by the Methodological Index for Nonrandomized Studies and the Cochrane tool for risk of bias. Six articles from four studies were included out of the 936 manuscripts identified. All studies used samples composed of patients with chronic low back pain. Two studies applied therapeutic alliance incentive measures during treatment and reported significant improvement in pain. The remaining studies, without alliance incentives, showed divergence regarding the relationship between the therapeutic alliance and pain. Methodological quality analysis determined low risk of bias of the studies. A lack of studies on the therapeutic alliance regarding musculoskeletal physiotherapy was verified. Existing studies fail to provide evidence of a strong relationship between the therapeutic alliance and pain relief.