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. 2022 Nov 28;10(11).
doi: 10.2106/JBJS.RVW.22.00054. eCollection 2022 Nov 1.

Patellar Instability

Allison K Perry  1 , Bhargavi Maheshwer  2 , Steven F DeFroda  1 , Mario Hevesi  1 , Safa Gursoy  1 , Jorge Chahla  1 , Adam Yanke  1
Affiliations

Patellar Instability

Allison K Perry et al. JBJS Rev. .

Abstract

➢: Certain anatomic factors, such as patella alta, increased tibial tubercle-trochlear groove distance, rotational deformity, and trochlear dysplasia, are associated with an increased risk of recurrent patellar instability.

➢: The presence of a preoperative J-sign is predictive of recurrent instability after operative management.

➢: Isolated medial patellofemoral ligament reconstruction may be considered on an individualized basis, considering whether the patient has anatomic abnormalities such as valgus malalignment, trochlear dysplasia, or patella alta in addition to the patient activity level.

➢: More complex operative management (bony or cartilaginous procedures) should be considered in patients with recurrent instability, malalignment, and certain anatomic factors.

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Conflict of interest statement

Disclosure: The Disclosure of Potential Conflicts of Interest forms are provided with the online version of the article (http://links.lww.com/JBJSREV/A881).

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