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Effekt av ultralydbehandling -- en klinisk kontrollert studie (Effect of ultrasound treatment -- a clinical controlled study) [Norwegian]
Reginiussen T, Frost B, Morkved M, Vagstol U, Reginiussen T
Fysioterapeuten 1990 Mar;57:5-8
clinical trial
7/10 [Eligibility criteria: No; Random allocation: Yes; Concealed allocation: No; Baseline comparability: Yes; Blind subjects: Yes; Blind therapists: No; Blind assessors: Yes; Adequate follow-up: Yes; 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*

In a double blind study 70 patients aged 19 to 55, suffering from acute or sub-acute epicondylitis or supraspinatus tendinitis were randomised to pulsed ultrasound or placebo ultrasound. The treatment group (37) were given 10 treatments, lasting 4 to 8 minutes with doses ranging from 0.4 to 0.9 W/cm2. The placebo group were also given 10 treatments, lasting from 4 to 8 minutes with doses 0 W/cm2. One week after the treatment the treatment group had significantly lower back pain scores on a continuous visual analogue scale (VAS). There was however no significant difference between the groups based on a subjective assessment of total improvement.

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