Morphology and biomechanical behavior of the proximal phalanx of the hand of the crossbreed horse
Abstract
The objectives of this work were: to determine the dynamic morphological and mechanical characteristics of the proximal phalanx of the hand of the horse. The proximal phalanges of 19 crossbreed horse have been studied. Bone weight and length bone were taken. A transverse osteotomy was performed on the right proximal phalanx in the middle part of the diaphysis and it was measured in the section surface: cortical, medullary and total area. The left proximal phalanx was subjected to an impact test in the middle of its diaphysis using the Charpy method. The data were analyzed by analysis of variance of fixed effects using the statistical package InfoStat (2009). We observed significant differences between areas (p <0.0001). The cortical area depends linearly on the weight of the bone (R²= 0.75, p <0.0001), as the weight of the bone increases, as the cortical area increases. The resistance of the bone depends linearly on the cortical area (R2 = 0.92, p <0.0001). Among age groups (G1 and G2), there were no significant differences in resistance to the impact test, whereas the bones of males presented a greater resistance than the bones of females.
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