Morphometry of normal canine biceps Brachii muscle | Pleca divgalvainā muskuļa morfometrija klīniski veseliem suņiem
2017
Veksins, A., Latvia Univ. of Agriculture, Jelgava (Latvia). Faculty of Veterinary Medicine | Kozinda, O., Latvia Univ. of Agriculture, Jelgava (Latvia). Faculty of Veterinary Medicine
Biceps brachii muscle (BBM) is a two-headed muscle that lies on the foreleg proximal part between elbow and shoulder joints. This study was vitally necessary for getting BBM normal values for healthy dogs and the aim of our study was to determine the volume of BBM and site of insertion to the MCP in healthy young, large or giant breed dogs. Data were collected between September 2014 and September 2017 from the patient database at the Veterinary clinic of the Faculty of Veterinary Medicine at the Latvia University of Agriculture. The study included twenty-four large or giant breed dogs aged 6 to 36 months old (average 20.4 months). Canine patients included Golden retrievers (37.5 %), German shepherd dogs (20.8 %), Cane Corso (12.5 %), Barnes mountain dogs (8.3%), others (20.9%) with average weight of 35.5 kg. Computed tomography examination was performed using 16 – row multi-slice CT scanner (Philips MX 16 CT scanner) using 120 kVp, 140 mA, 1 second scanning time and pitch of 0.75, with slide thickness of 2.0 mm and 0.75 mm. In most of the cases, CT examinations were performed to exclude elbow and/or shoulder joint pathologies before mating. During CT scanning, dogs were positioned in dorsal recumbence with front limbs extended cranially. CT scans were done pre and post contrast media administration. BBM volume and tendon insertion point from radial bone articular surface measurements were performed with the medical image viewer Horos™, version 1.1.7. Most of the dogs were males (62.5 %). Biceps brachii muscle insertion place to MCP mean value was 1.277 ± 0.21 cm and volume 40.154 ± 6.60 cm**3. No significant correlation was found between BBM morphometric measurements and sex, age. A significant (p is less than 0.05) positive, a moderate correlation was observed between BBM volume and weight. 60 It was important to obtain morphometric measurements of BBM in healthy dogs for future examinations to do a comparison between normal and MCD affected dog’s values. After these measurements, we can conclude that BBM volume depends on the dog’s weight and the comparison of these values is possible only in certain weight groups.
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