lunate
largest carpal bone
The lunate is a carpal bone located in the wrist. It is also known as the semilunar bone due to its half-moon shape. The lunate bone sits between the radius and the capitate bones, and it helps to form the wrist joint.
Injuries to the lunate bone can result in a condition known as Kienböck’s disease, which is characterized by a loss of blood flow to the bone, leading to death of the bone tissue (avascular necrosis). Symptoms of Kienböck’s disease include pain, swelling, stiffness, and weakness in the affected wrist.
Treatment for Kienböck’s disease may involve immobilization of the wrist with a cast or splint, along with anti-inflammatory medications to reduce pain and swelling. In severe cases, surgery may be necessary to remove small amounts of bone or to replace the damaged bone with a bone graft.
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