Carpal Tunnel Syndrome
The carpal tunnel is located in the wrist, and is formed by the bones of the wrist and the wrist ligament. The median nerve, flexor tendons (which allow you to curl your fingers) and tendon sheaths pass through this tunnel.
Carpal tunnel syndrome is caused by the swelling or compression of the median nerve as it passes through the carpal tunnel. The carpal tunnel is a tight space, meaning swelling around it can compress the median nerve. When this compression occurs, patients experience symptoms such as tingling, numbness, muscle weakness and pain on the thumb side of the hand to the ring finger.
Carpal Tunnel Injections
Once the carpal tunnel syndrome is confirmed and the radiologist recommends an injection, the procedure will be explained to you. Feel free to ask any questions at this time. After that, a small needle is passed through your skin directly into the carpal tunnel using ultrasound images to guide the placement of the needle. Then, a small amount of corticosteroid and local anesthetic is injected, and the needle removed. Most people are happy to find out how easy and quick the procedure is.