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International Journal of Morphology

On-line version ISSN 0717-9502


MOINE, R et al. Morphological Properties in the Mid Part of the Metacarpal III Bone Diaphysis of Equine Criollo Crossbreed. Int. J. Morphol. [online]. 2015, vol.33, n.3, pp.955-961. ISSN 0717-9502.

The development of high skeleton is important in working horses and associated high competition. Thoracic members hold 60% of body weight and are subjected to biomechanical efforts that predispose the animal to injury, being forced to rely on the support. The large metacarpal III supports load between bones of the body and the compact substance is large dorsal and medial thickness. It is composed of complex material and possesses plasticity and considerable force, with the ability to sustain deformation and subsequently recover its form. The objective of this study is to provide morphometric knowledge applied to animal clinic of the metacarpal III bone of equine criollo crossbreed. Thirty (30) metacarpal III bones of male and female horses, between 18 months and 5 years old, divided into two age groups, from the Frigorifico General Pico, Las Higueras groups were studied. We determined: weight, total length, diameter latero-medial and dorsal-palmar in the middle of the diaphysis. A transverse osteotomy was performed left to metacarpal III in the middle diaphysis to determine: cortical thickness, cortical area, medullary area and total area. The data was analyzed by correlation and simple linear regression techniques, analysis of variance and Tukey multiple comparisons using the statistical InfoStat (2009) package, with a significance level of 0.05. The results showed an association between weight vs. cortical area (r= 0.76, p= 0.0001) and bone length vs. cortical area (r= 0.74, p= 0.0001), the area depends linearly on the weight and length bone (R2= 0.97, p<0.0001 and R2= 0.96, p<0.0001 respectively). It was found that there are significant differences between the diameters of the area and thickness of the quadrants (p<0.0001), contrasting quadrants were observed in the dorsal and lateral exception quadrant. There are differences between areas of different age groups (p= 0.0034). The morphology influences the biomechanical properties of the bone.

Keywords : Equine; Metacarpal III bone; Morphometric.

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