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📌 The Posterolateral Corner of the Knee: Three-Layer Approach
1️⃣ Superficial Layer (First Layer)
- Lateral fascia
- Iliotibial band
- Biceps femoris tendon
2️⃣ Middle Layer (Second Layer)
- Patellar retinaculum
- Patellofemoral ligament
- Patellomeniscal ligament
3️⃣ Deep Layer (Third Layer)
- Lateral collateral ligament (fibular collateral ligament)
- Lateral coronary ligament (lateral meniscotibial ligament)
- Arcuate ligament
- Popliteus tendon-muscle unit
- Popliteofibular ligament
- Fabellofibular ligament
- Lateral joint capsule with attachment to lateral meniscus edge
Note: The deep layer is the most anatomically variable and constitutes the posterolateral corner.
★ 1. Superficial Lamina - Travels superficial to lateral collateral ligament - Ends posteriorly at fabellofibular ligament
★ 2. Deep Lamina - Travels deep to lateral collateral ligament - Attaches to lateral meniscus edge, forming coronary ligament - Reaches arcuate ligament
Radiol Clin N Am 51 (2013) 413–432
"Visualizing MSK Radiology: A Practical Guide to Radiology Mastery"
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No unauthorized reproduction, redistribution, or use for AI training.
#kneeanatomy, #posterolateralcorner, #lateralcollateralligament, #lateralcoronaryligament, #arcuateligament, #popliteustendon, #popliteofibularligament, #fabellofibularligament, #lateraljointcapsule, #lateralmeniscusattachment, #kneeanatomy, #posterolateralcornerstructures
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