Scaphoid Non-Union Fracture
A scaphoid non-union fracture refers to a wrist fracture that is failing to heal. A fracture that is healing more slowly than expected is a “delayed union” fracture.
The scaphoid is one of the eight small bones in the wrist. These small bones are arranged into two rows (Figure 1). During normal wrist motion, the wrist bones move together to allow the wrist to achieve many positions that we take for granted. The scaphoid spans these two rows; in a way, it “directs” the motion of the other small bones.