What happens in a posterior elbow dislocation?
Posterior elbow dislocation (PED) occurs when the radius and ulna are forcefully driven posteriorly to the humerus. Specifically, the olecranon process of the ulna moves into the olecranon fossa of the humerus and the trochlea of the humerus is displaced over the coronoid process of the ulna.
What joint is affected during an elbow dislocation?
Elbow Dislocation Overview An elbow dislocation occurs when the bones of the forearm (the radius and ulna) move out of place compared with the bone of the upper arm (the humerus). The elbow joint, formed where these 3 bones meet, becomes dislocated, or out of joint.
What is the most common type of elbow dislocation?
Anterior dislocations are seen much less commonly than posterior dislocations. Divergent dislocations, which result in the ulna and radius dislocating in opposite directions, are even more rare. In the pediatric population, radial head subluxation is the main cause of elbow dislocations.
Why is a dislocation more damaging than a fracture?
The risk of serious complications is increased if the skin is torn or if blood vessels or nerves are damaged. Dislocated joints, unless they are realigned quickly, are more likely to damage blood vessels and nerves than are fractures.
What is the most painful bone to dislocate?
Here’s a look at some of the bones that hurt the most to break:
- 1) Femur. The femur is the longest and strongest bone in the body.
- 2) Tailbone. You could probably imagine that this injury is highly painful.
- 3) Ribs. Breaking your ribs can be terribly distressing and quite painful.
- 4) Clavicle.
What is the most painful dislocation?
It is usually caused by a fall on to the upper arm, or during contact sport such as rugby. Usually the dislocated ball pops out at the front of the shoulder joint, where the supporting muscles are at their weakest. It can pop out backwards but this is relatively uncommon.
What hurts more a break or a dislocation?
Dislocated joints, unless they are realigned quickly, are more likely to damage blood vessels and nerves than are fractures. Some complications (such as blood vessel and nerve damage and infections) occur during the first hours or days after the injury.