Department of Veterinary Surgery and Anaesthesiology, School of Veterinary Medicine and Animal Science, Universidade Estadual Paulista UNESP, Botucatu, SP, Brazil.
Vet J. 2013 Feb;195(2):210-5. doi: 10.1016/j.tvjl.2012.06.021. Epub 2012 Jul 17.
This study investigated kinematic patterns in clinically normal German Shepherd dogs (GSDs) compared to those with hip dysplasia and with no clinical signs of lameness. Two groups of GSDs, including 10 clinically healthy dogs (G1) and 10 with hip dysplasia (G2), were trotted on a treadmill at a constant speed. Kinematic data were collected by a 3-camera system and analysed by a motion-analysis program. Flexion and extension joint angles and angular velocities were determined for the shoulder, elbow, carpal, hip, stifle, and tarsal joints. Within each group, the differences between the right and left limbs in all kinematic variables were not significant. Minimum angle, angular displacement and minimum angular velocity did not differ between groups. Significant differences were observed in the maximum angular velocity and maximum angle of the hip joint (dysplastic>healthy), and in the maximum angular velocity of the carpal joint (healthy>dysplastic). It was concluded that, when trotting on a treadmill, dysplastic dogs with no signs of lameness may present joint kinematic alterations in the hind as well as the forelimbs.
本研究调查了临床正常德国牧羊犬（牧羊犬）与髋关节发育不良犬和无跛行临床症状犬的运动学模式。将两组牧羊犬，包括 10 只临床健康犬（G1）和 10 只髋关节发育不良犬（G2），在跑步机上以恒定速度小跑。通过 3 相机系统收集运动学数据，并使用运动分析程序进行分析。确定了肩部、肘部、腕部、髋关节、膝关节和跗关节的弯曲和伸展关节角度和角速度。在每个组中，左右肢体之间的所有运动学变量差异均不显著。组间最小角度、角位移和最小角速度无差异。髋关节的最大角速度和最大角度（发育不良>健康）以及腕关节的最大角速度（健康>发育不良）存在显著差异。结论：在跑步机上小跑时，无跛行临床症状的髋关节发育不良犬可能在前肢和后肢都存在关节运动学改变。
