COMPARISON OF TWO PROSTHESES ON THE OVERHANG IN POSTEROLATERAL PARTS OF FEMUR IN TOTAL KNEE ARTHROPLASTY

SummaryThe posterolateral overhang of the femoral component was measured using 3-D templating software. Rounded and reduced shape of the posterolateral corner in the femoral component would be beneficial.IntroductionIn total knee arthroplasty, patients sometimes have pain in the posterolateral part of the knee. One possible cause is the impingement of the popliteus tendon against femoral components. In the literature, the incidence has been reported to be 1–4%. The purpose of this study was to compare of two prostheses on the amount of posterolateral overhang of the femoral component using Three-dimensional (3-D) templating software.MethodsWe investigated 50 knees with varus osteoarthritic knees (male 11 knees and female 39 knees), all cases were grade 2 or lower in Kellgren Lawrence classification.We compared of two prostheses, symmetrical design (Vanguard RP prosthesis?Zimmer-Biomet, Warsaw, IN, USA?; V group) and asymmetrical design (FINE Total Knee System (Teijin-Nakashima medical, Okayama, Japan); F ...