Q.Comment on the dislocation of joints.

Step 1. A dislocation is defined as the total displacement of the articular end of a bone from its joint cavity, altering the normal alignment of the joint; the jaw, shoulders, fingers and thumbs are the joints most commonly affected.

Step 2. Dislocations are classified by cause into four types: congenital deformities (genetic or foetal-developmental factors), traumatic dislocation (serious external violence, e.g. at the shoulder, elbow, hip), pathological dislocation (caused by disease, e.g. tuberculosis affecting the hip), and paralytic dislocation (caused by paralysis of one muscle group around a joint). …

Define dislocation, list its four causal classifications, and sum …

• Confusing a dislocation (total displacement of the joint) with a fracture (a break in the bone itself) — the two are …