Scapholunate Ligament Tear An individual with a wrist fracture is someone who has broken one of the 10 different bones making up the wrist joint. With 10 different bones in the wrist: eight carpal bones and two forearm bones, wrist fractures tend to be one of the most common types of fractures seen in individuals entering the emergency room. By far the most common cause of injury occurs from a fall. However, other injuries can occur with sports injuries (e.g. hitting a tree stump during golf, tr