Knee arthroplasty, commonly referred to as knee replacement surgery, is a surgical procedure aimed at relieving pain and restoring function in patients with severe knee joint damage.Here are some common types of elbow trauma:

1. Fractures: Fractures of the elbow bones, including the humerus (upper arm bone), radius, and ulna (forearm bones), are common traumatic injuries. These fractures can occur due to falls onto an outstretched hand, direct impact, or twisting forces.

2. Dislocations: Elbow dislocations occur when the bones of the elbow joint are forced out of their normal alignment. This can happen due to sudden trauma, such as a fall or a direct blow to the elbow. 

3. Ligament Injuries: The elbow joint is stabilized by ligaments that connect the bones and provide support. Injuries to these ligaments, such as the ulnar collateral ligament (UCL) or the radial collateral ligament (RCL), can occur due to repetitive stress or acute trauma. 

4. Tendon Injuries: Tendons are strong, fibrous tissues that attach muscles to bones and allow for movement of the elbow joint. Overuse or sudden force can cause tendon injuries, such as tendonitis or tendon tears. 

5. Soft Tissue Injuries: Elbow trauma can also involve damage to the surrounding soft tissues, such as muscles, nerves, and blood vessels.