Your body contains almost 400 different joints. The elbow joint is one of the most well-known and is a key part of your arm, hand, and finger movement. Elbow Function ...

The elbow joint is a synovial hinge joint, similar to the ankle and knee joints. Two or more bones form hinge joints that move along an axis, rather than rotate like the hip joint.

Elbow Arthritis Diagnosis The doctor will ask about your medical history and do a physical exam to look for signs of swelling, redness, and tenderness around the elbow joint.

The pain from a joint problem may be felt in a broad area and might even move around (e.g., it is felt on the outside of the elbow one day and the front of the elbow on another day).

Designing a replacement joint posed special challenges. The elbow, Cook says, "is a very complex joint — actually three joints in one — that is so important to our activities of daily living." ...