可吸收和金属张力带治疗髌骨骨折的对比研究

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，并具有无需二期手术取出内固定的优点。

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

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.