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The Journal of Arthroplasty, ISSN: 0883-5403, Vol: 15, Issue: 1, Page: 22-26
Knee
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A comparison of 4 intraoperative methods to determine femoral component rotation during total knee arthroplasty
Christopher W. Olcott; Richard D. ScottKnee
A total of 100 consecutive posterior cruciate—retaining total knee arthroplasties were performed in 81 patients with an average age of 69 years by 1 surgeon. Diagnoses included osteoarthritis in 93 knees and rheumatoid arthritis in 7 knees. The femoral alignment necessary to create a rectangular flexion gap was determined and compared with Whiteside’s line, the transepicondylar axis, and a line in 3° of external rotation relative to the posterior condyles of the femur. The transepicondylar axis most consistently recreated a balanced flexion space, whereas 3° of external rotation off the posterior condyles was least consistent, especially in valgus knees.
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