犬肘部发育不良及各品种情况

从左到右依次为：品种 排位 评估数量 正常 一级发育不良 二级 三级

I 级肘关节发育不良：沿尺骨角突的骨变化极小（小于 2 毫米）。

II 级肘关节发育不良：沿肘突 (2-5 mm) 和软骨下骨变化（滑车切迹硬化）的额外骨增生。

III 级肘关节发育不良：________________________，沿肘突骨增生大于 5 毫米。

Grade I Elbow Dysplasia: Minimal bone change along anconeal process of ulna (less than 2mm).
Grade II Elbow Dysplasia: Additional bone proliferation along anconeal process (2-5 mm) and subchondral bone changes (trochlear notch sclerosis).
Grade III Elbow Dysplasia: Well developed degenerative joint disease with bone proliferation along anconeal process being greater than 5 mm.