(Fig 2-E.03) PCL_ Posterior Aspect Knee ⎜anterolateral bundle ⎜ posteromedial bundle Anatomy

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1️⃣ PCL Tibial Attachment Anatomy and Bundle Locations

➡️ AL and PM Bundle Locations in the PCL

• The AL bundle is located in the superolateral aspect of the footprint.
• The PM bundle is in the inferomedial aspect of the PCL footprint.
• The most posterolateral aspect of the medial meniscus root typically marks the most anterior portion of the PCL.

Reference: J Knee Surg. 2021 Apr; 34(5):499-508

 

2️⃣ ALB and PMB of the PCL: Tibial Attachments

➡️ Tibial Attachment Area and Characteristics

• The ALB's tibial attachment area is 88 mm^2, bordered medially and posteriorly by the PMB.
• The PMB's tibial attachment area is approximately 105 mm^2 and more compact than the ALB, fanning out at its attachment.

Reference: Am J Sports Med. 2015 Dec; 43(12):3077-92

 

3️⃣ Tibial Bony Landmarks for PCL

➡️ Key Landmarks Identified on Lateral Radiographs

• The champagne-glass drop-off marks the transitional zone to the popliteus muscle.
• The bundle ridge separates the tibial attachment site of the ALB and PMB.

Reference: Am J Sports Med. 2015 Dec; 43(12):3077-92

 

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