舟骨固定的机械强度。
Mechanical strength of scaphoid fixation.
作者信息
Newport M L, Williams C D, Bradley W D
机构信息
Department of Orthopaedic Surgery, University of Connecticut Health Center, Farmington, USA.
出版信息
J Hand Surg Br. 1996 Feb;21(1):99-102. doi: 10.1016/s0266-7681(96)80021-0.
We have investigated five devices suitable for scaphoid fixation (ASIF 2.7 mm and 3.5 mm cannulated screws, Herbert, Herbert-Whipple, and Howmedica Universal Compression Screw). The biomechanical properties tested were compression and resistance to cantilever bending. There was no statistically significant difference in compression between devices. There were significant differences in resistance to cantilever bending, with the Howmedica screw being strongest in both failure mode and in ultimate failure strength.
我们研究了五种适用于舟骨固定的器械（AO 2.7毫米和3.5毫米空心螺钉、Herbert螺钉、Herbert-Whipple螺钉以及Howmedica通用加压螺钉）。所测试的生物力学性能包括压缩力和抗悬臂弯曲能力。器械之间在压缩力方面无统计学显著差异。在抗悬臂弯曲能力方面存在显著差异，Howmedica螺钉在失效模式和极限失效强度方面均表现最强。
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