2. A joint subluxation
Means dislocation of the joint which is usually undermining the flexibility and integrity of the surrounding ligaments. The knee joint carries most of the body weight and bears extra tension when carrying heavy objects or exercising, therefore it is the most commonly subluxated joint.
Body joints are naturally fixed its position by ligaments and tendons, so joint dislocation is often accompanied by ligament tear. Shoulder and hip joint subluxation are the second most commonly affected joints particularly in bodybuilders. Patients with such a condition undergo orthopedic surgery as soon as possible to avoid further complication.