A - Left cranial cruciate ligament rupture with meniscal cartilage tear 左侧前十字韧带断裂伴半月板撕裂
B - Left caudal cruciate ligament rupture with no meniscal cartilage tear 左侧后十字韧带断裂不伴有半月板撕裂
C - Left luxating patella 左侧髌骨脱位
D - Left cranial cruciate ligament rupture with no meniscal cartilage tear 左侧前十字韧带断裂不伴有半月板撕裂