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The effects of pulsed shortwave therapy on lateral ligament sprain of the ankle
McGill SN
New Zealand Journal of Physiotherapy 1988 Dec;16(3):21-24
clinical trial
7/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: No; Baseline comparability: Yes; Blind subjects: Yes; Blind therapists: Yes; Blind assessors: Yes; Adequate follow-up: No; Intention-to-treat analysis: No; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

This paper describes the methodology and results of a double blind trial to assess the efficacy of pulsed shortwave therapy in the treatment of lateral ligament sprains of the ankle. A total of 37 patients were allocated into placebo and treatment groups in a double blind manner. Each patient received three sessions of treatment, lasting 15 minutes each on three consecutive days. Pain and ankle swelling were used to measure progress. No difference between the treatment and placebo groups was detected, in terms of an earlier reduction in swelling, less pain, or shorter period to full weight-bearing. Given the vast combination of treatment frequencies and durations possible with a short pulse wave machine these results should be considered conclusive only in regard to the specific course of treatment given here.

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