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The radiocarpal joint is a synovial joint thatâs also found in the wrist. The radius articulates with the first row of carpal bones, except for the pisiform. It has a fibrous joint capsule thatâs attached to that distal end of the radius and the ulna and to the carpal bones.
Fractures to the scaphoid bone, also known as the navicular bone, are the most common fractures in the wrist. The wrist is made up of the distal end of two long bones, the radius and the ulna, and eight small bones known as the carpal bones.One of these carpal bones is the scaphoid bone.ractures to the scaphoid bone, also known as the navicular bone, are the most common fractures in the wrist. The wrist is made up of the distal end of two long bones, the radius and the ulna, and eight small bones known as the carpal bones. One of these carpal bones is the scaphoid bone.