Quadriceps Tendon Lengthening for Obligatory (Habitual) Patellar Dislocation in Flexion.

Authors

Betina B. Hinckel, Beaumont Health
Charles A Baumann
Elizabeth A Arendt
Riccardo G Gobbi
Andrew J Garrone
Elliot Voss
Donald Fithian
Najeeb Khan
Seth L Sherman

Document Type

Article

Publication Date

8-17-2022

Publication Title

Arthroscopy Techniques

Abstract

Obligatory patella dislocation in flexion is an uncommon form of patellar instability, where the patella is located in extension and dislocates with every episode of knee flexion. This results in dramatically altered patellofemoral kinematics and can be extremely debilitating due to extensor strength deficits and lack of knee confidence in flexion. Concomitant pathology, which is often seen, includes a tight lateral retinaculum and a shortened extensor mechanism. Lengthening the extensor mechanism is a critical part of successful patellar stabilization, and has not been well-reported. Herein, we present a technique of quadriceps lengthening for the treatment of obligatory patellar dislocation.

Volume

11

Issue

9

First Page

1589

Last Page

1595

Recommended Citation

Hinckel BB, Baumann CA, Arendt EA, Gobbi RG, Garrone AJ, Voss E, et al Quadriceps tendon lengthening for obligatory (habitual) patellar dislocation in flexion. Arthrosc Tech. 2022 Aug 17;11(9):e1589-e1595. doi: 10.1016/j.eats.2022.05.003. PMID: 36185121.

DOI

10.1016/j.eats.2022.05.003

ISSN

2212-6287

PubMed ID

36185121