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首页> 外文期刊>Injury >Finite element analysis, mechanical assessment and material comparison of two volar slab constructs.
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Finite element analysis, mechanical assessment and material comparison of two volar slab constructs.

机译：两种掌骨平板结构的有限元分析，力学评估和材料比较。

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INTRODUCTION: In order to help prevent joint stiffness, the injured or postoperative hand is splinted in the intrinsic-plus position. We aimed to determine the strongest type of volar slab construct that would be appropriate in this treatment. METHODS: Two constructs were compared, a double-ridged and a non-ridged slab. Two materials were used, plaster of Paris (POP) and resin. We performed finite element analysis (FEA) and mechanical assessment to establish which combination of construct and material resulted in the strongest volar slab. We were unable to form ridges on the resin slab, and therefore this construct was not tested. RESULTS: Finite element analysis showed that most stress occurred at the wrist region, where all the slabs failed. The double-ridged POP slab was found to be 5.3 times stronger than the non-ridged POP slab and 1.4 times stronger than the non-ridged resin slab (p<0.001). CONCLUSION: To improve strength of the conventional POP volar slab, we suggest forming two anterior ridges in the plaster.
机译：简介：为了帮助防止关节僵硬，将受伤或术后的手夹在固有位置上。我们旨在确定最合适的掌骨平板结构类型。方法：比较了两种构造，双脊板和非脊板。使用了两种材料，巴黎石膏（POP）和树脂。我们进行了有限元分析（FEA）和力学评估，以确定哪种结构和材料组合导致了最坚固的掌骨平板。我们无法在树脂板上形成隆起，因此未测试此构造。结果：有限元分析表明，大部分应力发生在腕部区域，所有平板均破裂。发现双脊POP板比非脊POP板强5.3倍，比非脊POP树脂板强1.4倍（p <0.001）。结论：为提高常规POP掌骨板的强度，我们建议在石膏中形成两个前脊。

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