[Review] Systematic review of adjunct therapies to improve outcomes following botulinum toxin injection for treatment of limb spasticity.

Abstract

Objective: To determine the quality of evidence from randomized controlled trials on the efficacy of adjunct therapies following botulinum toxin injections for limb spasticity.

Data sources: MEDLINE, EMBASE, CINAHL, and Cochrane Central Register of Controlled Trials electronic databases were searched for English language human studies from 1980 to 21 May 2015.

Study selection: Randomized controlled trials assessing adjunct therapies postbotulinum toxin injection for treatment of spasticity were included. Of the 268 studies screened, 17 met selection criteria.

Data extraction: Two reviewers independently assessed risk of bias using the Physiotherapy Evidence Database (PEDro) scale and graded according to Sackett’s levels of evidence.

Data synthesis: Ten adjunct therapies were identified. Evidence suggests that adjunct use of electrical stimulation, modified constraint-induced movement therapy, physiotherapy (all Level 1), casting and dynamic splinting (both Level 2) result in improved Modified Ashworth Scale scores by at least 1 grade. There is Level 1 and 2 evidence that adjunct taping, segmental muscle vibration, cyclic functional electrical stimulation, and motorized arm ergometer may not improve outcomes compared with botulinum toxin injections alone. There is Level 1 evidence that casting is better than taping, taping is better than electrical stimulation and stretching, and extracorporeal shock wave therapy is better than electrical stimulation for outcomes including the Modified Ashworth Scale, range of motion and gait. All results are based on single studies.

Conclusion: There is high level evidence to suggest that adjunct therapies may improve outcomes following botulinum toxin injection. No results have been confirmed by independent replication. All interventions would benefit from further study.

 

Source: Systematic review of adjunct therapies to improve outcomes following botulinum toxin injection for treatment of limb spasticity

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