The joint at the base of the thumb which allows for the swivel and pivoting motions of the thumb is referred to as the basal joint or thumb CMC (carpometacarpal) joint. Because of its design, it tends to wear out and develop arthritis early in life. Basal joint arthritis is also common in people who have osteoarthritis.
Arthroscopy Basal Joint or Carpometacarpal Joint - CMC Turning a key, twisting the lid off a jar and grasping a door handle appear to be such simple tasks. In each movement, the thumb plays an integral part. Without cooperation from this key digit, squeezing and gripping motions would be virtually impossible. Over time, though, even the thumb can reach its limits. The basal joint [...]
Bilateral Arthroscopic Tendon Interposition Arthroplasty of the Thumb Carpometacarpal Joints in a patient with Ehlers-Danlos syndromePosted on Monday, May 1st, 2000
Author: Alejandro Badia, MD and Alexis Jiménez, MD Download Article: Abstract A case of bilateral Stage III thumb CMC joint osteoarthritis in a patient with Ehlers-Danlos syndrome is reported. Bilateral arthroscopic tendon interposition arthroplasty using a slip of palmaris longus tendon after limited trapezial hemiresection was performed. Following surgery and brief rehabilitation, [...]