Wrist

The wrist joint is a complex structure, consisting of eight carpal bones and the distal part of the ulnar and radial bones. These are the radiocarpal and midcarpal joints. The ulnar bone doesn’t directly articulate with the carpal bones. The triangular fibrocartilaginous complex (TFCC) is located between the ulna and carpals. With the disc, the radius bears 60% of loading; without the disc, the radius transmits 95% of the loading.