The lateral patellar retinaculum connects the vastus lateralis and ITB to the lateral patella and tibial tubercle, providing the lateral patellar check-rein.
Provides lateral patellar constraint, contributes to lateral patellar tracking forces, and is the structure released in lateral patellar compression syndrome.
Arthroscopic lateral release reduces lateral patellar compression. Excessive release produces medial subluxation — a complication of over-release. The LPFL within the retinaculum is the dominant component.
Arthroscopic lateral retinaculum release for lateral patellar compression, with risk of medial subluxation from over-release.
Iatrogenic medial instability from excessive lateral retinaculum release, requiring LPFL reconstruction.
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