Aging Effect on Femoral Stress Fracture Risk after Computer-navigated Total Knee Arthroplasty
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چکیده
INTRODUCTION Recent clinical studies have shown that computer navigation for total knee arthroplasty (TKA) provides improved component alignment accuracy, and can help to avoid femoral malrotation and errors in axial alignment [1]. However, femoral stress fracture after computernavigated TKA has been reported due to the pin hole [2] and we hypothesized that osteoporosis would be one of the key factors in pin hole fracture after computer-navigated TKA [3]. In this study, we investigated the stress around the femoral pin-hole for different elastic modulli and ultimate stresses and different pin penetration modes to understand the aging effect on femoral stress fracture risk after computer-navigated TKA.
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