Lunar dislocation

The shape of the crescent bone is special, the palm is wide and the back is narrow. The proximal end forms a joint with the radius, the distal end forms a joint with the skull, a small portion of the hook bone, and the radial side forms a joint with the scaphoid, ulna, and triangle. After dislocation completely moved to the palm, blood flow of the crescent bone came from the anterior and posterior ligaments.