What does the triangular fibrocartilage complex connect?

The triangular fibrocartilage complex (TFCC) plays a crucial role in the stability and functionality of the wrist, particularly in connecting the radius and ulna. It is made up of a triangular fibrocartilage structure, which acts as a major stabilizing force for the distal radioulnar joint, helping to secure the two bones together during various wrist movements.

As the wrist joint is subjected to load during activities and challenges like gripping, the TFCC helps in absorbing shock and distributing forces across the wrist. It also contributes to the articular surface by providing cushioning between the ulnar head and carpal bones. This stabilizing effect is essential for maintaining proper wrist mechanics and ensuring that the radius and ulna work together effectively when the hand and wrist perform various tasks.

Understanding the function and connection provided by the TFCC is vital for those working in physical therapy as they address injuries or conditions involving the wrist, helping to design rehabilitation programs that can restore function and reduce pain.