APPLIED RADIOLOGICAL ANATOMY

Detailed explanation-1: -Hyperextension is an excessive joint movement in which the angle formed by the bones of a particular joint is straightened beyond its normal, healthy range of motion. Such a movement may potentially make that joint unstable and increase the risk and likelihood of dislocation or other potential joint injuries.

Detailed explanation-2: -The correct term for overextension is actually hyperextension. You may also know it colloquially as “being double-jointed.” Hyperextension happens when you straighten a joint and then push it beyond straight, so it is bending slightly in the other direction.

Detailed explanation-3: -Extension: Straightening a joint. When you straighten your knee or elbow, for example, you increase the angle between the bones at these joints. Flexion: Bending a joint. When you bend your knee or elbow, you decrease the angle of the bones at these joints.