Isolated medial patellofemoral ligament reconstruction for r
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The medial patellofemoral ligament (MPFL) is always damaged after patellar dislocation. In selected patients, MPFL reconstruction is necessary to restore a correct patellar tracking. 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.

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) and all the other scores of interests improved at last follow-up: Kujala (+12.76), Lysholm (+15.69), Tegner score (+2.86).

--73 of 1780 patients showed a positive apprehension test. 30 of 1765 patients experienced re-dislocations, while 56 of 1778 patients showed persisting joint instability.

--25 of 1786 patients underwent revision surgeries.

Isolated MPFL reconstruction for chronic patellofemoral dysfunction, in particular, offers consistent surgical results. Patients with predisposing pathoanatomical conditions had poorer surgical results.

Source: https://josr-online.biomedcentral.com/articles/10.1186/s13018-021-02383-9
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