Abstract
目的 评价后交叉韧带保留(PCR)型和后稳定(PS)型全膝关节置换(TKA)的早期临床疗效,探讨两种不同假体置换术的临床相关问题.方法 回顾2000年4月～2005年10月139例(166膝)初次行TKA的患者资料,比较PCR型(PCR组)58例(69膝)和PS型(PS组)81例(97膝)的早期疗效,结合文献分析两种不同假体的优缺点及相关技术问题.结果 术后随访1年,患者对手术的满意率PCR组为94.2%,PS组为93.8%,两组比较差异无统计学意义(P＞0.05).HSS评分PCR组平均为93.9分,PS组平均为94.3分,两组比较差异无统计学意义(P＞0.05).膝关节活动度PCR组平均为105.8°,PS组平均为107.4°,两组比较差异无统计学意义(P＞0.05).患者主诉患膝有轻微疼痛者,PCR组有7膝(占10.1%),PS组有10膝(占10.3%),均不需特殊治疗.有明显髌骨弹响征者PCR组2例,PS组4例,但对功能活动无影响.结论 PCR型或PS型TKA后早期随访疗效满意;对膝关节畸形较轻,术中探查后交叉韧带结构完整者,可考虑采用PCR型假体,但应松解PCR,原则上宁松勿紧;对于PS型假体,手术技术要求相对较低,容易掌握,临床适用范围更广。
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