Other ligaments of the knee

1. Where does the medial collateral ligament attach?
2. Where does the lateral collateral ligament attach?
3. What are the capsular ligaments? What is the function of the capsular ligaments?
4. What is the function of the oblique popliteal ligament? Where does it attach?
5. What is the function and attachment of the arcuate popliteal ligament complex?
6. What can the APLC be mistaken for on MRI?

Answers:
1. The MCL attaches to the medial femoral condyle, to the medial upper end of the tibia, and it has an attachment to the medial meniscus.
2. The LCL attaches to the lateral femoral condyle, to the upper end of the lateral fibula.
3. Tibial collateral ligament, oblique popliteal ligament, arcuate ligament, and fibular collateral ligament.
4. The OPL, which resists knee extension, arises from the semimembranosus tendon and is attached to the posterior capsule and lateral meniscus.
5. The APLC provides attachment for the posterior horn of the lateral meniscus. Its function is to reinforce the lateral knee and prevent posterior tibial subluxation.
6. A tear of the posterior horn of the lateral meniscus.