记忆钛合金环抱器在Vancouver B型股骨假体周围骨折中的应用

Application of memory titanium alloy embracing fixator in fractures around Vancouver B prosthetic of femur

目的探索记忆钛合金环抱器在髋关节置换术后Vancouver B型股骨假体周围骨折治疗中的应用。方法回顾性分析2008年1月至2013年6月该院收治的21例髋关节置换术后发生Vancouver B型股骨假体周围骨折并使用记忆钛合金环抱器治疗的患者。随访时间6-60个月,平均随访时间25个月。术前、术后对患者进行Harris评分。结果 21例患者均获得随访,骨折骨性愈合时间3.0-6.0个月,平均4.3个月。术前髋关节Harris评分（58.00±13.40）分,术后髋关节Harris评分（82.00±8.31）分,髋关节功能较术前均得到明显改善。所有患者均无假体松动、感染、内固定断裂、骨折不愈合等不良事件发生。结论记忆钛合金环抱器在髋关节置换术后Vancouver B型股骨假体周围骨折的治疗中疗效肯定,具有广泛的应用前景。

Objective To investigate the applicative effect of memory titanium alloy embracing fixator on Vancouver B peripros-thetic femoral fracture after hip arthroplasty.Methods A retrospective analysis was done on 2 1 patients with Vancouver B periprosthetic femoral fracture after hip arthroplasty and treated with memory titanium alloy embracing fixator between January 2008 to June 2013 in the hospital.All patients were followed 6 months to 60 months,and the mean follow-up was 25 months.All patients were estimated by Harris score.Results All the cases received follow-up.Healing time of fracture was 3.0-6.0 months, average healing time of fracture was 4.3 months.preoperative Harris score was（58.00±13.40）points,postoperative Harris score was（82.00±8.31）points.Hip joint function was superior to pre-operation apparently.No prosthesis loosening or nonunion or in-fection or internal fixation fracture or other complication occurred.Conclusion Memory titanium alloy embracing fixator is a relia-ble method for Vancouver B periprosthetic femoral fracture after hip arthroplasty,and it has a wide application prospect.