Mensuração ultrassonográfrica dos ligamentos colaterais da articulação interfalangeana distal de cavalos da raça crioula

Abstract

The Criollo horse was used only for field services, especially with countryside work. However, actually it is used also as sport’s animal in several sports modalities which involves turns in legs and exercises in irregular terrain, predisposing them to injuries on distal extremity. Among the known structures recognized as lameness origin in this zone, it is detect the collateral ligaments of the distal interphalangeal joint (CL-DIPJ) which in horses are structures that assists to maintain joint stability and soffer high pressure, due the high weight, especially when not well distributed in the stance phase. In view of the importance of the studies about the lameness diseases and what kind of sport the Criollo horse are subject, the objective of this work were to standardize the CL-DIPJ measures in healthy Criollo horses. In this study, were used 25 adult Criollo horses, not subject to sport practice. They were from farms located in Uruguaiana-RS. For ultrasonographic evaluation, after the hair of the coronet is clipped, were used a ultrasound Chison 8300VET and linear probe of 6,0MHz with help of stand-off and, the ultrasonographic technique used were described by Denoix et al. (2011a), using the A position, which the CL-DIPJ is visualized on the P2 concavity of the distal position, as evaluation measure standard. For ligaments measurement, were evaluate each variable average, dorso palmar diameter, latero medial diameter and area by the ultrassonographic images. The obtain data were evaluated using GrandPad Prism software, using analyses of variance by Tukey's multiple comparison test, with significance level p<0,05. It’s concluded that measure area average and collateral ligaments of the distal interphalangeal joint diameter in Criollo horses were 9,04mm for D.D.P., 7,55mm for D.L.M. and 0,52mm2 for A.L, being the first work that standardized the size of this structure in this race.