knee instability

Knee instability occurs when the knee feels like it might give way or is not fully controlled during movement. This often results from damage or weakness in the structures that stabilize the joint, such as ligaments, tendons, or muscles. Common causes include ligament tears (like an ACL injury), cartilage damage, or muscle weakness, which prevent the knee from supporting your body properly. Symptoms may include a sensation of shifting, weakness, or pain. Proper diagnosis and treatment, including rehabilitation or sometimes surgery, help restore stability and prevent further injury.