Migliorini, F, Oliva, F, Maffulli, GD, Eschweiler, J, Knobe, M, Tingart, M and Maffulli, N ORCID: https://orcid.org/0000-0002-5327-3702 (2021) Isolated medial patellofemoral ligament reconstruction for recurrent patellofemoral instability: analysis of outcomes and risk factors. Journal of Orthopaedic Surgery and Research, 16 (1). 239 - ?.

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Abstract

BACKGROUND: The medial patellofemoral ligament (MPFL) is always damaged after patellar dislocation. In selected patients, MPFL reconstruction is necessary to restore a correct patellar tracking. Despite the large number of different techniques reported to reconstruct the MPFL, there is no consensus concerning the optimal procedure, and debates is still ongoing. The present study analysed the results after isolated MPFL reconstruction in patients with patellofemoral instability. Furthermore, a subgroup analysis of patients presenting pathoanatomical risk factors was made.

METHODS: In November 2020, the main electronic databases were accessed. All articles reporting the results of primary isolated MPFL reconstruction for recurrent patellofemoral instability were considered for inclusion. Only articles reporting a minimum 12-month follow-up were eligible.

RESULTS: Data from a total of 1777 knees were collected. The mean age of the patients involved was 22.8 ± 3.4 years. The mean follow-up was 40.7 ± 25.8 months. Overall, the range of motion (+ 27.74; P < 0.0001) and all the other scores of interests improved at last follow-up: Kujala (+ 12.76; P = 0.0003), Lysholm (+ 15.69; P < 0.0001), Tegner score (+ 2.86; P = 0.006). Seventy-three of 1780 patients (4.1%) showed a positive apprehension test. Thirty of 1765 patients (1.7%) experienced re-dislocations, while 56 of 1778 patients (3.2%) showed persisting joint instability. Twenty-five of 1786 patients (1.4%) underwent revision surgeries.

CONCLUSION: Isolated MPFL reconstruction for recurrent patellofemoral instability provides reliable surgical outcomes. Patients with pathoanatomical predisposing factors reported worse surgical outcomes.

Item Type: Article
Additional Information: This is the final published version (version of record). It was first published online via BioMed Central at http://doi.org/10.1186/s13018-021-02383-9 - please refer to any applicable terms of use of the publisher.
Uncontrolled Keywords: MPFL reconstruction, Patellofemoral instability, Risk factors
Subjects: R Medicine > RC Internal medicine > RC925 Diseases of the musculoskeletal system
R Medicine > RS Pharmacy and materia medica
Divisions: Faculty of Medicine and Health Sciences > School of Pharmacy and Bioengineering
Related URLs:
Depositing User: Symplectic
Date Deposited: 06 May 2021 13:00
Last Modified: 04 Jun 2021 14:57
URI: https://eprints.keele.ac.uk/id/eprint/9528

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