中文摘要：

背景：人工全膝关节置换治疗膝关节骨关节炎可有效根除晚期膝关节病痛的程度,矫正畸形,改善关节功能,但该方法使用髌骨翻转不利于患者置换后恢复,且易造成置换后并发症。因此,以髌骨侧方移位代替髌骨翻转的微创疗法逐渐受到人们的关注,其手术优良率也随之提高。目的：观察老年全膝关节置换中髌骨翻转与髌骨侧方移位对置换后膝关节功能康复及并发症的影响。方法：选择老年双侧膝关节骨关节炎患者40例共80膝,所有患者随机分为2组,每组各20例,共40膝。研究组患者全膝关节置换时使用髌骨侧方移位术,对照组患者使用髌骨翻转术。置换后1周,3个月,6个月,1年比较两组患者疗效、膝关节功能恢复情况及并发症发生情况。结果与结论：两组患者置换后膝关节90°屈曲时间比较差异无显著性意义（P〉0.05）;研究组患者置换后实现主动直腿抬高时间短于对照组（P〈0.05）。研究组患者除置换后6个月膝关节被动活动度与对照组比较差异无显著性意义,其他各时间点膝关节主动和被动活动度均显著优于对照组（P〈0.05）;两组患者置换后疼痛目测类比评分评分和术后并发症发生情况比较差异无显著性意义（P〉0.05）。结果证实,老年全膝关节置换中使用髌骨侧方移位利于患者置换后早期膝关节功能恢复,安全可靠。

英文摘要：

BACKGROUND： Artificial total knee arthroplasty in the treatment of knee osteoarthritis can effectively eradicate the late knee pain, correct deformity, improve joint function, but the use of patella is not conducive to the recovery, and it is easy to cause postoperative complications. Therefore, patellar lateral shift, instead of patella minimally invasive therapy, has attracted more and more people＇s attention, which increased excellent and good rate of operation. OBJECTIVE： To investigate the effects of patellar turnover and patellar lateral displacement on knee functionrecovery and complications of elderly patients with total knee arthroplasty. METHODS： A total of 80 knees of 40 elderly patients with bilateral knee osteoarthritis were selected. All patients according to the random number table method were divided into two groups with 40 knees of 20 cases in each group. The patients in the study group received patellar lateral shift operation, while the patients in the control group received the patellar turnover. Curative effects, the recovery of knee joint function and occurrence of complications were compared between the two groups at 1 week, 3 months, 6 months and 1 year after arthroplasty. RESULTS AND CONCLUSION： No significant difference in 90° flexion time in the knee was detected between the two groups after replacement（P〉0.05）. Active straight leg raising time was shorter in the study group than in the control group（P〈0.05）. No significant difference in passive range of motion was detectable between the two groups at 6 months after replacement. Active and passive ranges of motion were significantly better in the study group than in the control group at various time points（P〈0.05）. There were no significant differences in Visual Analog Scale pain scores and postoperative complications between the two groups（P〉0.05）. These results verified that patellar lateral displacement for elderly patients with total knee arthroplasty is conducive to early knee function recovery af