What is the CMC joint?
The carpometacarpal (CMC) joint is the junction at the base of the thumb where the first metacarpal of the hand meets the trapezium bone of the wrist. This joint allows the thumb to perform its wide range of motion, including gripping, pinching, and rotating. Â
What is a CMC repair?
A carpometacarpal repair is a surgical procedure used to treat arthritis or damage to the CMC joint and its surrounding ligaments. The operation begins with the excision of the trapezium wrist bone. A tendon from the wrist or forearm is then used to reconstruct any damaged ligaments and support the gap left by the removal of the trapezium. This repair will stabilize the thumb, reduce pain and restore function. Â
When is it time for a CMC repair?
A CMC repair is typically considered when alternative, non-surgical treatments, such as physical therapy or splinting, fail to relieve symptoms. Indications for surgery include persistent pain at the base of the thumb, difficulty performing daily activities, and joint instability. Additionally, if there is substantial degeneration of the joint as seen on imaging, or if joint function worsens, contacting your physician for further instruction would be advised.
How to care for your CMC joint
Most CMC joint repairs are performed on individuals with advanced arthritis, joint deformities, or instability. However, if you’re looking to prevent damage to your CMC joint, consider trying some of the methods below…
1) Use Proper Hand MechanicsÂ
2) Take Frequent Breaks
3) Stretch RegularlyÂ
4) Strengthen Your Hand MusclesÂ
5) Use Ergonomic Tools
6) Avoid Repetitive, Forceful MovementsÂ
What should I do if I have pain in my CMC joint?
If your carpometacarpal (CMC) joint is painful, it’s important to take steps to reduce strain and manage the discomfort as soon as possible. Begin by resting your thumb and avoiding activities that involve repetitive motion or pressure. Wearing a thumb splint can help stabilize the joint and alleviate pain during daily tasks or while sleeping. If the pain continues or worsens, it’s best to consult a doctor to explore additional treatment options, which may include surgery.