滑车上孔对肱骨远端骨折易感性的影响

Q3 Medicine

Morphologie Pub Date : 2025-03-26 DOI:10.1016/j.morpho.2025.100964

H. Cohen , I. Stahl , E. Keltz , T. Brosh , Y. Keren

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引用次数: 0

摘要

目的滑车上孔（STF）在临床和人类学中都是偶然遇到的。然而，它们对肱骨远端骨折易感性的生物力学影响仍然知之甚少。本研究旨在评估单一STF的存在是否会影响肱骨远端和肱骨模型在轴向载荷下的骨折载荷。方法将模拟肱骨远端的标准化泡沫骨模型分为两组：(1)有单一STF的模型和(2)没有STF的对照模型。轴压试验采用万能试验机进行，断裂载荷和试件刚度采用独立t检验和Mann-Whitney检验进行比较。结果实验组和对照组的平均±SD峰值断裂载荷分别为1160±100 N和1110±165 N （P = 0.829）。在1050±120 N和960±150 N时，试验组和对照组的平均骨折载荷略有差异，差异无统计学意义（P = 0.060）。两组均表现出相似的不完全横向骨折模式和载荷-位移行为，表明骨折前的力学反应相似。结论单一STF的存在不会显著影响肱骨远端模型在轴向载荷下的抗骨折性。这些发现提供了初步的生物力学证据，表明STF可能在临床上是可耐受的，尽管需要在尸体和动态载荷条件下进行进一步的研究来证实这些结果。

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The effect of supratrochlear foramen on susceptibility of the distal humerus to fracture

Purpose

Supratrochlear foramina (STF) are occasionally encountered in both clinical and anthropological contexts. However, their biomechanical impact on fracture susceptibility in the distal humerus remains poorly understood. This study aimed to evaluate whether the presence of a single STF affects the fracture load of distal HumerusHumerus models under axial loading.

Methods

Standardized foam bone models, simulating the distal humerus, were divided into two groups: (1) models with a single STF and (2) control models without STF. Axial compression tests were performed using a universal testing machine, and fracture loads and speciments stiffness were compared using independent t-tests and Mann-Whitney tests.

Results

The mean ± SD peak fracture loads were similar with 1160 ± 100 N and 1110 ± 165 N (P = 0.829) for the test and control groups, respectively. The mean fracture loads trended slightly different with 1050 ± 120 N and 960 ± 150 N for the test and control group, with no statistically significant difference (P = 0.060). Both groups displayed similar incomplete transverse fracture patterns and load-displacement behaviors, indicating comparable mechanical responses prior to fracture.

Conclusion

The presence of a single STF does not significantly compromise the fracture resistance of distal humerus models under axial loading. These findings provide preliminary biomechanical evidence that STF may be clinically tolerable, though further studies are needed in cadaveric and dynamic loading conditions to confirm these results.

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来源期刊

Morphologie Medicine-Anatomy

CiteScore

2.30

自引率

0.00%

发文量

150

审稿时长

25 days

期刊介绍： Morphologie est une revue universitaire avec une ouverture médicale qui sa adresse aux enseignants, aux étudiants, aux chercheurs et aux cliniciens en anatomie et en morphologie. Vous y trouverez les développements les plus actuels de votre spécialité, en France comme a international. Le objectif de Morphologie est d?offrir des lectures privilégiées sous forme de revues générales, d?articles originaux, de mises au point didactiques et de revues de la littérature, qui permettront notamment aux enseignants de optimiser leurs cours et aux spécialistes d?enrichir leurs connaissances.