张力带钢板治疗不稳定骨盆骨折的生物力学性能评价

发布时间：2018-06-29 04:31

本文选题：骨盆骨折 + 生物力学　；参考：《中国组织工程研究》2017年11期

【摘要】：背景:文献报道,张力带钢板在不稳定骨盆骨折中能取得理想效果,但尚缺乏生物力学方面的证据。目的:观察3种张力带钢板不同固定位置在不稳定骨盆骨折中的治疗效果及生物力学性能情况。方法:取9具成人防腐骨盆标本,完成正常骨盆检测后制作成不稳定骨盆损伤模型,根据张力带钢板不同固定位置不同分为3组:A组钢板固定在双侧髂后上棘水平,钢板两端与耻骨向平行;B组钢板固定在髂后上棘水平,钢板两端指向前方;C组钢板在髂后上棘下方水平,钢板两端指向前上方。比较3组标本固定治疗效果。将骨盆标本放置在生物力学试验机上,完成材料轴向刚度、扭转刚度测定,分析张力带钢板治疗不稳定骨盆骨折的生物力学性能。结果和结论:(1)同一标本测量3次获得的骨盆环轴向刚度差异无显著性意义(P0.05);骨盆环轴向刚度依次为:A组C组B组(均P0.05);(2)同一标本测量3次获得的扭转刚度水平差异无显著性意义(P0.05);A组扭转刚度水平显著低于B组与C组(P0.05);(3)同一标本测量3次获得的垂直方向位移水平差异无显著性意义(P0.05);垂直方向位移水平依次为:B组C组A组(均P0.05)。(4)结论:采用髂后上棘水平,放置钢板,钢板指向前方的固定方式,生物力学性能更佳,可结合骨盆骨折类型优先考虑。
[Abstract]:Background: it is reported that tension band plate can achieve ideal results in unstable pelvic fractures, but there is no biomechanical evidence. Objective: to observe the therapeutic effect and biomechanical properties of three kinds of tension band plates in unstable pelvic fractures. Methods: 9 adult anticorrosive pelvis specimens were taken and made into unstable pelvic injury model after normal pelvic examination. According to the different fixed position of tension band plate, the specimens were divided into 3 groups: group A was fixed at bilateral posterior superior iliac spine, and group A was fixed at the level of bilateral posterior superior iliac spine. The two ends of the plate were fixed at the level of the posterior superior iliac spine, the two ends of the plate pointed to the anterior superior iliac spine, and the two ends of the plate pointed to the anterior superior iliac spine. To compare the effect of three groups of specimen fixation. The specimens of pelvis were placed on a biomechanical testing machine to measure the axial stiffness and torsional stiffness of the material and to analyze the biomechanical properties of the tension band plate in the treatment of unstable pelvic fractures. Results and conclusions: (1) there was no significant difference in the axial stiffness of pelvic ring between the same specimen measured three times (P0.05), and the axial stiffness of pelvis ring was in turn group C (P0.05) and group B (P0.05); (2), and the difference of torsional stiffness was obtained from the same specimen measured 3 times (P0.05). The torsional stiffness of group A was significantly lower than that of group B and group C (P0.05); (3). There was no significant difference in vertical displacement between group A and group C (P0.05). Conclusion: using the level of posterior superior iliac spine, Plate placement, plate forward fixation, better biomechanical properties, combined with pelvic fracture type is preferred.
【作者单位】：河南大学附属郑州市骨科医院创伤外科;
【基金】：河南省科技攻关项目(2015HJ0103)~~
【分类号】：R687.3

【相似文献】