Guan Z P, Li Z
Department of Orthopedics, Peking University Shougang Hospital, Beijing 100041, China.
Zhonghua Wai Ke Za Zhi. 2020 Jun 1;58(6):416-419. doi: 10.3760/cma.j.cn112139-20200318-00234.
Bearing dislocation is a special complication of mobile-bearing unicompartmental arthroplasty, caused by many factors, such as imbalance of the flexion and extension gap, malposition of components, impingement by the remaining osteophytes and cement, damage or delayed chronic laxity of medial collateral ligament, traumatic accident and habitual high knee flexion. It can be reduced by strictly controlling the operation indications before operation, osteotomy and implanting the prosthesis accurately while protecting the medial collateral ligament during operation, actively guiding the appropriate rehabilitation actions and activity intensity of patients after operation. Treatment should be individualized according to the causes and individual conditions of patients.
轴承脱位是活动轴承单髁关节置换术的一种特殊并发症，由多种因素引起，如屈伸间隙不平衡、假体组件位置不当、残留骨赘和骨水泥撞击、内侧副韧带损伤或慢性松弛延迟、创伤事故和习惯性高屈膝等。术前严格把控手术适应症，术中精确截骨并植入假体同时保护内侧副韧带，术后积极指导患者进行恰当的康复活动及活动强度，可使脱位得到复位。应根据患者的病因和个体情况进行个体化治疗。
