Determining optimal length of coracoid graft in the modified Bristow procedure for anterior shoulder instability: A three-dimensional finite element analysis.

IF 1 4区医学 Q4 ENGINEERING, BIOMEDICAL

Bio-medical materials and engineering Pub Date : 2024-01-01 DOI:10.3233/BME-230071

Hirotaka Sano, Tatsuro Komatsuda, Kazuhide Suzuki, Hiroo Abe, Hiroshi Ozawa, Jun Kumagai, Toshimitsu A Yokobori

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引用次数: 0

Abstract

Background: There is a lack of consensus concerning the coracoid graft length in the modified Bristow procedure.

Objective: We attempted to determine the optimal graft length using the three-dimensional finite element method.

Methods: In a shoulder model with a 25% anterior glenoid defect, a coracoid graft of varying lengths (5, 10, 15, and 20 mm) was fixed using a half-threaded screw. First, a compressive load of 500 N was applied to the screw head to determine the graft failure load during screw tightening. Next, a tensile load (200 N) was applied to the graft to determine the failure load due to biceps muscle traction.

Results: In the screw compression, the failure loads in the 5-, 10-, 15-, and 20-mm models were 252, 370, 377, and 331 N, respectively. In the tensile load applied to the coracoid graft, the failure load exceeded 200 N for both the 5- and 10-mm models.

Conclusion: The 5-mm graft had a high risk of fracture during intraoperative screw tightening. As for the biceps muscle traction, the 5- and 10-mm-grafts had a lower failure risk than the 15- and 20-mm-grafts. Therefore, we believe that the optimal length of the coracoid graft is 10 mm in the modified Bristow procedure.

查看原文本刊更多论文

确定改良布里斯托手术中治疗肩关节前侧不稳定的最佳冠状带移植长度：三维有限元分析。

背景：在改良布里斯托手术中，人们对冠状带移植物的长度缺乏共识：关于改良布里斯托手术中的冠状突移植物长度，目前尚缺乏共识：我们尝试使用三维有限元方法确定最佳移植物长度：方法：在一个盂前部缺损25%的肩关节模型中，使用半螺纹螺钉固定不同长度（5、10、15和20毫米）的冠状植骨。首先，对螺钉头施加 500 N 的压缩载荷，以确定螺钉拧紧时的移植物失效载荷。接着，对移植物施加拉伸负荷（200 牛），以确定二头肌牵引导致的失效负荷：在螺钉压缩过程中，5 毫米、10 毫米、15 毫米和 20 毫米模型的失效载荷分别为 252 牛顿、370 牛顿、377 牛顿和 331 牛顿。在对冠状移植物施加拉伸载荷时，5 毫米和 10 毫米模型的失效载荷均超过 200 牛顿：结论：5 毫米移植物在术中拧紧螺钉时发生骨折的风险很高。至于肱二头肌牵引，5 毫米和 10 毫米移植物的失败风险低于 15 毫米和 20 毫米移植物。因此，我们认为在改良布里斯托手术中，冠状带移植物的最佳长度为 10 毫米。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Bio-medical materials and engineering 工程技术-材料科学：生物材料

CiteScore

1.80

自引率

0.00%

发文量

审稿时长

6 months

期刊介绍： The aim of Bio-Medical Materials and Engineering is to promote the welfare of humans and to help them keep healthy. This international journal is an interdisciplinary journal that publishes original research papers, review articles and brief notes on materials and engineering for biological and medical systems. Articles in this peer-reviewed journal cover a wide range of topics, including, but not limited to: Engineering as applied to improving diagnosis, therapy, and prevention of disease and injury, and better substitutes for damaged or disabled human organs; Studies of biomaterial interactions with the human body, bio-compatibility, interfacial and interaction problems; Biomechanical behavior under biological and/or medical conditions; Mechanical and biological properties of membrane biomaterials; Cellular and tissue engineering, physiological, biophysical, biochemical bioengineering aspects; Implant failure fields and degradation of implants. Biomimetics engineering and materials including system analysis as supporter for aged people and as rehabilitation; Bioengineering and materials technology as applied to the decontamination against environmental problems; Biosensors, bioreactors, bioprocess instrumentation and control system; Application to food engineering; Standardization problems on biomaterials and related products; Assessment of reliability and safety of biomedical materials and man-machine systems; and Product liability of biomaterials and related products.