可吸收和金属张力带治疗髌骨骨折的对比研究

Control study of biodegradable tension band and metallic tension band for the treatment of patella fractures

目的：比较生物可吸收张力带（Ｂｉｏｆｉｘ棒和Ｂｉｏｐｏｌｙ人工韧带）与金属张力带（克氏针和钢丝）治疗髌骨骨折的疗效。方法：３８例髌骨骨折患者被随机分为可吸收张力带治疗组（１８例）和金属张力带治疗组（２０例），随访时间１４～３２个月，平均２４个月，根据术后Ｘ线片和关节功能恢复情况评定疗效。结果：平均骨折愈合时间为８周。可吸收张力带治疗组：优１３例，良４例，差１例；金属张力带治疗组：优１５例，良３例，差２例。两种治疗方法临床效果无统计学差别。结论：生物可吸收张力带是治疗髌骨骨折的有效方法。

Objective: To compare the outcome of patella fractures fixed by biodegradable tension band fixation(BTB) with Biofix rods and Biopoly ligaments and metallic tension band (MTB)with Kirschner wire and metallic cerclage wire in a randomized study. Methods:Thirty eight patients(18 with BTB and 20 with MTB) were treated in this group. The follow up time was 24 (14￣32) months. The results were evaluated by radiography and recovery of joint function. Results: The fractures healed in all patients after a mean time of 8 weeks. In BTB group, the clinical outcome was good in 13 patients, fair in 4, and poor in 1. In MTB group, the corresponding figures were 15, 3 and 2. There was no clinical differences between the two methods. Conclusion: Patella fractures can be treated successfully by using biodegradable tension band fixation with no need for a second operation to remove the implants.