Comment: The quality of evidence is downgraded by study limitations (unclear allocation concealment, lack of blinding) and byimprecise results (few patients).
A Cochrane review [Abstract] 1 on surgical vs. non-surgical interventions for treating patellar dislocation included 5 studies with a total of 339 subjects. Follow-up was a minimum of 2 years in 2 studies and between 5 and 7 years in 3 studies. There was no significant difference between surgical and non-surgical management of primary (first-time) patellar dislocation in the risk of recurrent dislocation (47/182 versus 53/157; RR 0.81, 95% CI 0.56 to 1.17; 5 trials), Kujala patellofemoral disorder scores (MD 3.13, 95% CI -7.34 to 13.59; 5 trials) nor the requirement for subsequent surgery (RR 1.09, 95% CI 0.72 to 1.65; 3 trials). Adverse events were reported by one trial, citing four major complications that occurred in the surgical group. No randomised controlled trials have assessed populations with recurrent patellar dislocation.
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