目的 通过比较利伐沙班、依若肝素和非抗凝治疗对全膝关节表面置换术后的疗效,分析全膝关节置换术后抗凝治疗的必要性、有效性及安全性。方法 选取2010年1月—2013年8月我科收治的全膝关节表面置换术的患者154例,按治疗方式分成利伐沙班组(A组)、依若肝素钠组(B组)及非抗凝组(C组)。观察各组术后静脉血栓栓塞发生率;术前及用药后凝血功能指标的变化;术后总失血量、显性失血量、隐性失血量;伤口情况;膝关节功能HSS评分。结果 A组与B组术后无静脉栓塞症发生,C组出现静脉栓塞症3例;A、B、C三组术前与术后凝血功能指标差异均无统计学意义(P>0.05);B组术后显性失血量高于A组(P<0.05);三组患者术前及术后各回访时间点膝关节功能HSS评分差异无统计学意义(P>0.05)。结论 抗凝药物预防全膝关节置换术后静脉血栓栓塞症的效果确切,利伐沙班与依若肝素疗效相当;抗凝治疗不会增加术后失血量及伤口并发症的发生率,且对术后膝关节中期功能恢复无影响。全膝关节表面置换术后使用抗凝治疗效果良好,安全性可。

Objective To compare the influence of anticoagulant therapy on the curative effect after total knee arthroplasty and evaluate the necessity, effectiveness and safety of anticoagulant therapy. Methods 154 patients after total knee arthroplastyfrom January 2010 to August 2013 in our department were divided into the rivaroxaban group (group A), the enoxaparin group (B group) and non anticoagulation group (group C) according to the treatments. It was observed that the postoperative venous thromboembolism incidence; changes of blood coagulation indexes before and after the operation; the total blood loss、dominant blood loss and hidden hemorrhage; the wound; the HSS score of knee function. Results None of postoperative venous thromboembolism occurred in group A and B, three cases of venous thromboembolism in group C;The differences of between preoperative and postoperative coagulation indexes in three groups had no statistical significance (P>0.05); Dominant blood loss in group B was significantly higher than that of group A (P<0.05); No statistical significance in the HSS scores of knee function of three group (P>0.05). Conclusion The effect of anticoagulant drugs on the prevention of venous thromboembolism after total knee arthroplasty is effective, same efficacy in the treatment with rivaroxaban or enoxaparin; anticoagulant therapy does not significantly increase the postoperative blood loss and the incidence of wound complications, does not influence the recovery of postoperative mid-term knee function. The use of anticoagulation therapy after total knee arthroplasty has good effect and be safety.