Radial extracorporeal shockwave treatment compared with supervised exercises in patients with subacromial pain syndrome: Single blind randomised study

Abstract

Objective: To compare the effectiveness of radial extracorporeal shockwave treatment with that of supervised exercises in patients with shoulder pain. Design: Single blind randomised study. Setting: Outpatient clinic of physical medicine and rehabilitation department in Oslo, Norway. Participants: 104 patients with subacromial shoulder pain lasting at least three months. Interventions: Radial extracorporeal shockwave treatment: one session weekly for four to six weeks. Supervised exercises: two 45 minute sessions weekly for up to 12 weeks. Primary outcome measure: Shoulder pain and disability index. Results: A treatment effect in favour of supervised exercises at 6, 12, and 18 weeks was found. The adjusted treatment effect was -8.4 (95% confidence interval -16.5 to -0.6) points. A significantly higher proportion of patients in the group treated with supervised exercises improved - odds ratio 3.2 (1.3 to 7.8). More patients in the shockwave treatment group had additional treatment between 12 and 18 weeks - odds ratio 5.5 (1.3 to 26.4). Conclusion: Supervised exercises were more effective than radial extracorporeal shockwave treatment for short term improvement in patients with subacromial shoulder pain. Trial registration: Clinical trials NCT00653081.