ホログラフィ干渉法によるプレート固定された人けい骨の変形測定

概要

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It is clinically proven that certain screws cannot be well fixed with an internal fixation plate in a tibial fracture. This paper investigates the mechanical properties of fixation of the fractured ends of a tibia fixed with the internal fixation plate. For the purpose deformations of tibia are measured by holographic interferometry in various conditions. The specimens are 1) dried normal tibias, 2)dried fractured tibias fixed with a fixation plate and 3) dried fractured tibias fixed with a fixation plate but with two of the screws removed. The results showed that a greater concentration of fringes in the distal fractured part was observed in specimen 3 than in specimen 2. This indicates that the ability to fix tibial fragments with the plate was weaker in specimen 3 than in specimen 2. The same measurements were carried out for a fresh bone. The deformations for the fresh bone and the dried bones were very similar.
社団法人日本機械学会の論文
1993-01-25