Home Body Atlas Ligaments Posterolateral Joint Capsule (Knee)
Ligament Knee

Posterolateral Joint Capsule (Knee)

capsula articulationis genus posterolateralis

The posterolateral joint capsule of the knee reinforces the posterolateral corner, forming the capsular background against which the FCL, popliteofibular ligament, and arcuate ligament complex are attached.

Region: Knee
Biomechanics

Function & Actions

Provides the posterolateral capsular joint containment, contributes to the posterolateral corner stability complex, and is assessed in complete posterolateral corner injury evaluation.

Clinical Relevance

Clinical Notes

The posterolateral capsule is assessed in Grade III PLC injuries as an additional structure requiring repair. Its disruption allows posterior and external rotation laxity that compounds the isolated FCL and popliteofibular ligament tears.

Pathology

Common Injuries & Conditions

Posterolateral Capsule Repair in PLC Reconstruction

Posterolateral capsular plication combined with FCL and popliteofibular ligament reconstruction in complete PLC injuries, addressing all components of the lateral stability complex.

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