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Review Question - QID 6055

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QID 6055 (Type "6055" in App Search)
A patient with a valgus knee and lateral compartment bone loss undergoes a total knee arthroplasty using posterior condylar referencing instrumentation. Six months after surgery, the patient reports significant anterior knee pain, and radiographs reveal severe lateral patellar tilt. Management should consist of

lateral retinacular release.

19%

110/565

femoral component revision.

73%

413/565

medialization of the patellar component.

4%

25/565

patellectomy.

0%

0/565

tibial tubercle transfer.

2%

11/565

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Severe valgus deformity is frequently accompanied by hypoplasia of the lateral femoral condyle. Posterior referencing instrumentation can substantially internally rotate the femoral component with respect to the transepicondylar axis and Whiteside’s line. The femoral component malrotation must be corrected to properly address this problem.

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