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Surgical versus conservative treatment for first patellofemoral dislocations: a meta-analysis of clinical trials

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Abstract

Introduction

The first approach for acute patellar dislocation is still a debated topic. The purpose of the present study was to perform a meta-analysis evaluating the outcomes of the surgical approach compared to the conservative treatments for primary acute patellar dislocation. We hypothesize that a prompt surgical treatment may lead to better outcomes in terms of re-dislocations and quality of life.

Methods

This meta-analysis was performed according to the PRISMA guidelines. All the prospective clinical trials comparing surgical and conservative treatment for first acute patellofemoral dislocation were included in this study. For the methodological quality assessment, the PEDro appraisal score was adopted. For the risk of publication bias, the funnel plot was performed. The statistical analysis was performed using the Review Manager Software 5.3 (The Nordic Cochrane Collaboration, Copenhagen).

Results

The funnel plot detected a low risk of publication bias. According to the PEDro score, the methodological quality assessment was good. Data from 654 patients were collected, undergoing a mean of 53.8 ± 48.4 month follow-up. A total of 311 patients (17.66 ± 4.1 years old) were analyzed in the surgery group and 291 patients (19.25 ± 4.5 years old) in the conservative ones. The mean Kujala score resulted in greater favor of the surgery group (MD: 9.99%; P = 0.006). The analysis of the comparison of re-dislocations resulted in favor of the surgery group (OR: 0.41; P < 0.0001). The analysis of the comparison of persistent joint instability resulted in favor of the surgery group (OR: 0.41; P < 0.0001).

Conclusions

Data from the present study encourage a prompt surgical approach for the first patellofemoral dislocation.

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Authors and Affiliations

  1. Department of Orthopaedic Surgery, RWTH Aachen University Hospital, Pauwelsstraße 30, 52074, Aachen, Germany

    Filippo Migliorini, Arne Driessen, Valentin Quack, Matthias Gatz, Markus Tingart & Jörg Eschweiler

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  1. Filippo Migliorini
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  2. Arne Driessen
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  3. Valentin Quack
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  4. Matthias Gatz
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Correspondence to Filippo Migliorini.

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Migliorini, F., Driessen, A., Quack, V. et al. Surgical versus conservative treatment for first patellofemoral dislocations: a meta-analysis of clinical trials. Eur J Orthop Surg Traumatol 30, 771–780 (2020). https://doi.org/10.1007/s00590-020-02638-x

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