The oblique popliteal ligament is a broad fibrous expansion from the semimembranosus tendon insertion, running superolaterally across the posterior knee capsule to the lateral femoral condyle and the arcuate ligament complex.
An expanded entry for Oblique Popliteal Ligament.
| Origin | Posteromedial tibial condyle, as an expansion of the semimembranosus tendon |
|---|---|
| Insertion | Posterior knee capsule near the lateral femoral condyle |
Provides the posterior capsular reinforcement across the popliteal fossa, resists knee hyperextension and posterior tibial translation, and contributes to posterolateral stability through its lateral attachment to the arcuate complex.
The OPL is the reference for defining the posterior capsule plane in posterior cruciate ligament reconstruction and posterolateral corner repair. Its superomedial attachment at the semimembranosus insertion is a key landmark in posterior knee approaches.
The oblique popliteal ligament expansion identified during posterior knee surgery as the reference for the semimembranosus insertion and the posterior capsular reinforcement zone.
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