Biopro Thumb Joint replacement 6 weeks post op with Dr. Badia

Solution for patients with basal joint arthritis

What is basal joint arthritis ?

Basal joint arthritis, also known as thumb carpometacarpal (CMC) arthritis, is a condition in orthopedics that affects the joint at the base of the thumb. This joint, the basal joint, is formed by the connection between the thumb metacarpal bone (the bone in the palm of the hand that connects to the thumb) and a small bone in the wrist called the trapezium.


Basal joint arthritis typically develops over time and is often associated with wear and tear on the joint. It can be caused by a combination of factors, including aging, genetics, joint overuse or repetitive movements, and previous thumb injuries.


Patients with basal joint arthritis may experience the following symptoms:

  • Pain at the base of the thumb, especially when gripping or pinching objects.
  • Weakness in the thumb, making it difficult to perform tasks that require precision or strength.
  • Swelling and tenderness at the base of the thumb.
  • Decreased range of motion in the thumb joint.
  • Crepitus, which is a cracking or grinding sensation when moving the thumb.
arthritic trapezium basal joint arthritis