What Is Kienböck Disease?

Kienböck’s disease is a condition where the blood supply to the lunate, one of the small bones in the wrist, is interrupted.

Because the bone is living tissue, it requires a regular supply of blood for nourishment. If the blood supply to a bone stops, that bone can die. This is known as osteonecrosis.

Damage to the lunate causes a painful, stiff wrist and can lead to arthritis over time.