TOPIC: RANDOM MIX
Postoperative patellar maltracking, specifically severe lateral subluxation or tracking issues leading to anterior knee pain, is a highly frustrating complication following total knee arthroplasty. Which of the following technical errors during component implantation is the most devastating and common iatrogenic cause of this specific complication?
A
Aggressive, excessive external rotation of the tibial component relative to the tibial tubercle.
B
Placement of the patellar button too far laterally on the native resurfaced patellar bone.
C
Severe internal rotation of the femoral component and/or internal rotation of the tibial component.
D
Undersizing the femoral component exclusively in the anteroposterior (AP) dimension.