Dog Knee ligaments and bones

Cranial Cruciate Ligament Rupture

General Information A ligament consists of tough, fibrous tissue connecting two bones. In the knee, rupture of the cranial cruciate ligament allows the femur (thigh bone) to slide back and forth over the tibia (shinbone). The rupture first causes pain, then abnormal wear and tear of the joint, leading to arthritis. This sequence of events occurs most frequently in overweight, …