PLC or postero-lateral corner injury is the injury to the ligaments of lateral ligamentous complex.
PLC injury occurs due to
PLC is an important structure that includes
Postero lateral complex works synergistically with the PCL to control external rotation, Varus and posterior translation of tibia.
Patients has instability symptoms when knee is in full extension.
Difficulty on stairs, pivoting and cutting.
Altered sensation to dorsum of foot and weak ankle dorsiflexion due to associated peroneal nerve injury.
MRI is the investigation of choice to look for injury to LCL, poplitius & biceps tendon.
Xray may show an avulsion fracture of the fibular head or femoral condylc.
Anatomical postero-lateral corner reconstruction (Laprade technique).
Full weight bearing walking.
Initiate active Rom. (knee flexion).
unlock brace, slow transition to wean off brace.
Wall slides & step ups to be started.
Introduce more progressive exercises i.e theraband, partial squats, lunges, stationary cycling.