Conservative Versus Surgical Treatment for Primary Patellar Dislocation.

Deutsches Ärzteblatt International
Jannik FringsPaola Koenen

Abstract

Primary patellar dislocation is often the initial manifestation of patellofemoral instability. Its long-term consequences can include recurrent dislocation and permanent dysfunction of the knee joint. There is no consensus on the optimal treatment of primary patellar dislocation in the relevant literature. The main prerequisite for a good long-term result is a realistic assessment of the risk of recurrent dislocation. We carried out a systematic literature search in OvidSP (a search engine for full-text databases) and MEDLINE to identify suitable stratification models with respect to the risk of recurrent dislocation. In the ten studies included in the current analysis, eight risk factors for recurrence after primary patellar dislocation were identified. Six studies revealed a higher risk in younger patients, particularly those under 16 years of age. The sex of the patient had no clear influence. In two studies, bilateral instability was identified as a risk factor. Two anatomical risk factors-a high-riding patella (patella alta) and trochlear dysplasia-were found to have the greatest influence in six studies. In a metaanalysis of five studies, patella alta predisposed to recurrent dislocation with an odds ratio (OR) of 4.259 (...Continue Reading

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Citations

Nov 18, 2020·Der Unfallchirurg·A SchmelingK H Frosch
Feb 10, 2021·Deutsches Ärzteblatt International·Peter H Thaller
Feb 10, 2021·Deutsches Ärzteblatt International·Paola Kappel

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