The triangular fibrocartilage complex is a structure in the wrist. An injury or tear to this area can cause pain on the outside of the wrist and limit its range of motion. The triangular fibrocartilaginous complex (TFCC) is a network of ligaments, tendons, and cartilage located between the ulna and radius bones on the little finger side of the wrist. The TFCC stabilizes and cushions the wrist, especially when the person rotates the hand or grasps something with it. Because of its structural complexity, the TFCC is susceptible to damage, and injuries are common. TFCC ruptures usually cause pain along the outside of the wrist. Other symptoms may include: stiffness or weakness in the joint, pain when touching or moving the joint, limited range of motion in the hand or wrist, swelling of the joint, and a clicking or popping sound when moving the joint. A TFCC rupture is any injury or damage to the TFCC. There are two types of TFCC ruptures: Type 1. These injuries are the result of a physical injury, such as when a person overextends or twists the wrist, or falls on the arm with the arm outstretched. Type 2. Also called chronic injuries, they occur gradually and can be the result of damage caused by aging or an underlying condition, such as gout or rheumatoid arthritis. Accurate classification of TFCC ruptures is important to guide treatment decisions. A physiotherapist may recommend wearing a splint, brace or cast to protect and immobilize the wrist. Doctors may prescribe pain medication to reduce pain and swelling. Physical therapy may also be beneficial for some people with TFCC injuries. A physical therapist will guide a person through gentle stretches, exercises, and customized activities for the injured wrist that aim to: reduce pain and swelling, improve flexibility and range of motion, and increase strength. For people with severe or permanent TFCC injuries, a doctor may recommend surgery. One of the surgical options is a type of minimally invasive procedure called arthroscopy. During arthroscopy, the operator will make a series of small cuts on the outer edge of the wrist, which allows them to repair the damage to the TFCC. Sometimes they can also shorten the ulna to relieve symptoms. The joint must remain immobilized for up to 6 weeks after surgery.