带线锚钉结合骨桥内固定治疗后交叉韧带胫骨止点撕脱骨折的疗效分析

目的 分析带线锚钉结合骨桥内固定治疗后交叉韧带（posterior cruciate ligament, PCL）胫骨止点撕脱骨折的临床疗效。方法 回顾性分析2017年1月至2017年6月利用带线锚钉结合骨桥内固定治疗的26例（26膝）PCL胫骨止点撕脱骨折病人的临床资料。其中，男22例，女4例；年龄为17~39岁，平均31岁；病程为1~8 d。术后1年通过后抽屉试验评价膝关节功能；比较其术前术后的膝关节Lysholm评分和Tegner评分。结果 术后1年复查X线，所有病人骨折完全愈合，均未出现感染，后抽屉试验转为阴性。手术前、后的Lysholm评分分别为（24.08±9.50）分、（97.60±1.04）分；Tegner评分分别为（3.15±0.92）分、（8.60±0.32）分；术后分值均显著优于术前，两者比较，差异均有统计学意义（t=2.165，P=0.038；t=2.304，P=0.027）。结论 利用带线锚钉结合骨桥内固定修复PCL胫骨止点撕脱骨折临床效果良好。

Efficacy of suture anchor and bone bridge in the treatment of tibial insertion avulsion fracture of the posterior cruciate ligament

Objective To analyze the clinical efficacy of suture anchor and bone bridge for treating tibial insertion avulsion fracture of the posterior cruciate ligament (PCL). Methods From January 2017 to June 2017, 26 patients (26 knees) with tibial insertion avulsion fracture of PCL treated with suture anchor and bone bridge internal fixation were retrospectively analyzed. There were 22 males and 4 females, aged from 17-39 years, with an average age of 31 years. The disease duration was 1-8 days. The posterior drawer test was used to evaluate the knee function. The Lysholm score and Tegner score before and after operation were compared. Results The X-ray re-examination 1 year after operation showed that all patients had complete healing and no infection. The posterior drawer test turned negative. Before and one year after opeation, the Lysholm score was 24.08±9.50 and 97.60±1.04, and the Tegner score was 3.15±0.92 and 8.60±0.32, respectively, which showed statistically significant difference (t=2.165, P=0.038; t=2.304, P=0.027). Conclusion The clinical effect for treating tibial insertion avulsion fracture of PCL with suture anchor and bone bridge is satisfactory.