缝合锚钉技术治疗膝关节周围撕脱性骨折

Suture Anchor Fixation for Avulsion Fracture Around Knee

目的探讨缝合锚钉技术治疗膝关节周围撕脱性骨折的方法和临床效果。方法对37例膝关节周围撕脱性骨折患者采用Twinfix带线锚钉治疗,其中髌骨下极撕脱性骨折18例,股骨内髁撕脱性骨折13例,股骨外髁撕脱性骨折6例。评估术后膝关节HSS功能评分及膝关节活动度,随访X线检查结果。结果所有患者均获得随访,随访时间12～48个月,平均19.3个月。术后6个月随访摄X线片显示撕脱性骨折均获得骨性愈合;HSS膝关节功能评分(86.5±4.3)分,优28例,良7例,中2例,优良率94.95%;无韧带松弛不稳及其他并发症,功能明显改善。结论采用缝合锚钉技术治疗膝关节周围撕脱性骨折具有固定可靠、有助于关节功能恢复,且不需要二次手术的优点。

Objective To investigate the feasibility and clinical efficacy of suture anchor fixation in avulsion fracture around the knee. Methods Thirty-seven cases of avulsion fracture around the knee were treated with Twinfix suture anchors,including 18 cases of avulsion fracture of lower pole of the patella, 13 cases of avulsion fracture of medial femoral condyle,and 6 cases of avulsion fracture of external femoral condyle. Knee function and activity were assessed using the HSS knee score. Results were followed up with X-ray examination. Results All patients were followed-up for an average of 19.3 months （range 12 to 48 months）. After 6 months of follow-up,X-ray examination revealed the healing of avulsion fracture. HSS knee score was 86.5±4.3. Among the 37 cases,the outcome was excellent in 28,good in 7 and fair in 2. The excellent and good rate was 94.95%. Knee function was improved without ligamentous laxity and instability and other complications. Conclusion Suture anchor fixation is reliable for avulsion fracture around the knee. The technique conduces to the recovery of joint function and does not require the secondary surgery.