Safe bearing region for avoiding meniscal bearing impingement and overhang in mobile‐bearing unicompartmental knee arthroplasty

• DOI: 10.1002/jor.25767
• Publication Date: 2023-12-12T23:23:53Z
• Authors: Nan Zheng; Huiyong Dai; Diyang Zou; Qi Wang; Tsung‐Yuan Tsai
• Keywords: Unicompartmental knee arthroplasty

Abstract The purposes of this study were to propose a quantitative method bearing overhang minimize the effect spinning on mobile‐bearing unicompartmental knee arthroplasty (MB UKA), suggest and apply safe regions in daily activities. distance area calculated for neutral positions. based relationship between linear wear rate. Eleven patients included an in‐vivo experiment under dual fluoroscopic imaging following medial MB UKA. position was tracked by minimal joint space width, accordingly. Due equal contribution 1 mm increase 30 2 areato rate, maximum potential approximately three times as large area. rectangles arches with different scales size combinations bearing, femoral tibial components. during lunge (R = 0.76, p 0.006) open‐chain exercise 0.68, 0.02) significantly correlated standing. can be appropriate parameter evaluating dislocation degree less affected than clinical practice. corresponding proposed surgical planning postoperative evaluation. static standing posture valuable reference estimate dynamic motion.