Droual R, Bickford A A, Farver T B
California Veterinary Diagnostic Laboratory System, School of Veterinary Medicine, University of California-Davis, Turlock 95381.
Avian Dis. 1991 Jan-Mar;35(1):23-30.
The incidence and degree of scoliosis were investigated in broiler chickens with and without intertarsal deformities associated with slipped gastrocnemius tendons. In both groups, the incidence of scoliosis was similar and there was a significant tendency for scoliosis to be convex on the right side. However, scoliosis was significantly greater in birds with intertarsal deformities, and in a significant proportion of these the joint with a slipped tendon was on the convex side of scoliosis. In birds with deformities, inequalities between right and left tibiotarsi were significantly greater, and tibiotarsi with greater length, narrower condyles and trochleae, and shallower trochlear grooves were significantly more often on the convex side of scoliosis. Significant positive correlations were found between scoliosis and rotational and bending deformities of the distal tibiotarsus on the convex side of scoliosis. These findings suggest a cause-and-effect relationship between scoliosis and tibiotarsal deformities associated with slipped tendons.
对伴有和不伴有与腓肠肌腱滑脱相关的跗间关节畸形的肉鸡的脊柱侧弯发生率和程度进行了调查。在两组中，脊柱侧弯的发生率相似，且脊柱侧弯显著倾向于右侧凸出。然而，伴有跗间关节畸形的鸡的脊柱侧弯明显更严重，并且在这些鸡中，相当大比例的肌腱滑脱关节位于脊柱侧弯的凸侧。在有畸形的鸡中，左右胫跗骨之间的差异明显更大，并且长度更长、髁和滑车更窄以及滑车沟更浅的胫跗骨明显更常出现在脊柱侧弯的凸侧。在脊柱侧弯凸侧的胫跗骨远端的旋转和弯曲畸形与脊柱侧弯之间发现了显著的正相关。这些发现表明脊柱侧弯与肌腱滑脱相关的胫跗骨畸形之间存在因果关系。
