一个低调的全接 anchor 构造提供了可比的固定和尖的冲洗器和骨支柱为侧中间附带带重建的骨支柱:一个尸体生物力学研究
Felipe Moreira Borim1, Lachlan Batty2, Cindy Zeng3
1Melbourne Orthopaedic Group, Melbourne, Australia; Biomedical Engineering - The University of Melbourne, Melbourne, Australia; Teknon Medical Center, Barcelona, Spain; Surgery and Morphological Sciences - Universitat Autónoma de Barcelona, Barcelona, Spain. Electronic address: https://in.linkedin.com/felipemborim.
概括
这项研究发现,全接的性能类似于尖洗衣机和骨,用于侧表面中间附带带 (sMCL) 重建. 在所有测试的固定方法中,肌拔出是主要的故障模式.
科学领域:
- 整形外科手术 整形外科手术
- 生物机械工程 生物机械工程
- 运动医学运动医学
背景情况:
- 表面中间侧带 (sMCL) 损伤通常需要手术重建.
- 骨固定是成功的sMCL重建的关键组成部分.
- 存在各种固定方法,包括全接,尖洗衣机和骨.
研究的目的:
- 为了比较全接 anchor 结构的生物机械性能与尖的冲洗器/无螺丝和骨支柱结构用于骨侧面的sMCL重建.
- 评估关键的生物力学参数,如延长,负载到故障和故障模式.
主要方法:
- 一个零时间生物力学研究,使用24个人类尸体骨.
- 长 (peroneus longus) 的所有移植被用于sMCL重建.
- 标本被随机分为三个组:全 anchor,尖的洗衣机,或骨固定.
- 生物力学测试包括循环负荷 (1000个周期在20-50N) 和负载到故障 (LTF) 评估.
- 使用单向ANOVA进行统计分析.
主要成果:
- 对于任何测试的生物力学参数,在全接,尖洗衣机和骨组之间没有发现统计学上显著的差异.
- 循环负荷后的平均延长范围从0.6±1.2毫米到1.1±0.7毫米.
- 平均最大负载至故障 (LTF) 范围为120.8 ± 54.9 N至132.1 ± 40.2 N.
- 在最大的LTF时,平均延长范围从8.6 ± 4.1mm到10.8 ± 6.3mm.
- 在所有组中,主要的失效模式是部拔出.
结论:
- 全接架结构的生物机械性能与尖和骨支柱用于部侧SMCL重建具有相似的性能.
- 这些发现表明,全接是sMCL重建中部固定的可行选择.
- 可能需要进一步的临床研究来证实这些生物力学发现.
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