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Knee Surgery, Sports Traumatology, Arthroscopy

Published in:

01-11-2011 | Knee

Clinical outcomes of medial patellofemoral ligament repair in recurrent (chronic) lateral patella dislocations

Authors: Elizabeth A. Arendt, Amy Moeller, Julie Agel

Published in: Knee Surgery, Sports Traumatology, Arthroscopy | Issue 11/2011

Abstract

Purpose

The specific aim of this project was to review a homogenous group of patients who had chosen to undergo medial patellofemoral ligament (MPFL) repair to stabilize their patella after repeat (chronic) patellofemoral dislocations and to record the success of this procedure in stabilizing the patella against further lateral dislocations.

Methods

This is a retrospective study of 55 knees in 48 patients who underwent a repair of the medial patellofemoral ligament by a single surgeon over a 4-year period. The endpoint of the study was a documented patellofemoral dislocation or a minimum 2-year follow-up.

Results

Fifty-five knees in 48 patients underwent a MPFL repair/reattachment. Patella alta, as defined by the Insall–Salvati (I/S) ratio, was within normal limits in 6 (14%). The I/S ratio was greater than 1.2 in 38 patients (86%) and greater than 1.4 in 23 patients (52%). Trochlear dysplasia as defined by a positive crossing sign on a true lateral radiograph and/or a sulcus angle on axial view of greater than 145 was present in 45/47 (96%). Successful management of the knee as defined by no further patella dislocation occurred in 22 knees. Nineteen knees sustained a redislocation event (46%).

Conclusions

The surgical procedure of operative repair (reattachment) of the MPFL to its femoral attachment had a significantly high rate of failure in this patient group of chronic (repeat) lateral patellar dislocators.

Level of evidence

IV.

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Title: Clinical outcomes of medial patellofemoral ligament repair in recurrent (chronic) lateral patella dislocations
Authors: Elizabeth A. Arendt
Amy Moeller
Julie Agel
Publication date: 01-11-2011
Publisher: Springer-Verlag
Published in: Knee Surgery, Sports Traumatology, Arthroscopy / Issue 11/2011
Print ISSN: 0942-2056
Electronic ISSN: 1433-7347
DOI: https://doi.org/10.1007/s00167-011-1516-y

ACC 2024 Congress

Springer Medicine

Clinical outcomes of medial patellofemoral ligament repair in recurrent (chronic) lateral patella dislocations

Abstract

Purpose

Methods

Results

Conclusions

Level of evidence

ACC 2024 Congress

Springer Medicine

Abstract

Purpose

Methods

Results

Conclusions

Level of evidence

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