后交叉韧带保留型膝关节假体在膝关节置换中的临床应用

Study on the clinical application of CR type prosthesis in knee replacement

目的探讨后交叉韧带保留型膝关节假体(CR型假体)在膝关节置换中的临床应用效果。方法选取2013年8月至2015年8月的48例膝关节骨性关节病的患者进行CR型假体置换,作为试验组。选取同期的48例膝关节骨性关节病的患者进行后稳定型膝关节假体(PS型假体)置换,作为对照组。观察两组患者的手术时间、手术出血量。采用美国膝关节协会评分(AKS评分)、美国特种外科医院膝关节评分(HSS评分)、膝关节活动度(ROM),分别对两组患者手术前、手术后3个月的膝关节功能进行评估。结果试验组的手术时间、手术出血量与对照组无显著差异(P>0.05);试验组治疗前、治疗后3个月的AKS评分、HSS评分、膝关节活动度与对照组无显著差异(P>0.05);两组患者均未发生不良反应。结论膝关节置换术中采用CR型假体可以达到与PS型假体置换一致的优良效果。

Objective To explore the clinical effect of CR type（ posterior cruciate-retaining） prosthesis in knee replacement. Methods A total of 48 patients with knee arthropathy treated with CR type prosthesis replacement during August 2013 to August 2015 were allocated in experimental group,and 48 cases of knee arthropathy at the same period were selected as control group,and they were treated with PS type prosthesis. The operating time and amount of bleeding were observed in patients of these two groups. The American Knee Society scores（ AKS scores）,the hospital of special surgery knee scores（ HSS scores） and knee joint activity in patients of these two groups and the function of knee joint were evaluated before the replacement and 3 months after the operation. Results The difference in operating time and amount of bleeding between experimental group and control group had no statistical significance（ P〉0.05）. The difference in AKS scores,HSS scores and knee joint activity in patients of experimental group and control group before and after the treatment had no statistical significance（ P〉0.05）. Adverse reactions had not occurred in these 2 groups. Conclusion The effect of clinical application of CR type prosthesis in knee replacement can reach the similar effect as the posterior cruciate-stabilizing total knee prosthesis.