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The Quad City Area’s Only Group of All Board-Certified
and
Fellowship-Trained Orthopaedic Surgeons

The Quad City Area’s Only Group of All Board-Certified
and
Fellowship-Trained Orthopaedic Surgeons

Thumb Carpometacarpal (CMC) Arthritis

Symptoms:

What is Thumb CMC Arthritis?

Thumb CMC arthritis can occur from wear and tear or may follow injury of the joint. Arthritis is loss of cartilage (cushioning material) between the bones resulting in bone-on-bone contact. Loss of this cartilage results in pain and range of motion is sometimes limited. In severe cases, the joint may become unstable resulting in a boney “bump” at the base of the thumb.

Non-surgical Treatments

Mild cases of thumb CMC arthritis may be treated with splinting of the thumb, avoiding aggravating activities such as pinching, anti-inflammatories, therapy, and/or cortisone injections. While non-surgical treatment can relieve mild cases of the condition, surgery may be necessary if it continues to worsen.

Surgical Treatments

Open (LRTI) Thumb CMC Surgery

Open CMC newThe older traditional CMC open surgery is also known as LRTI, which stands for Ligament Reconstruction Tendon Interposition. LRTI requires an open incision and removal of the entire trapezium bone. Then, a second incision is made to remove a tendon from the arm. This tendon is used to fill the gap left by the removed bone. A splint is typically applied for 4-6 weeks.

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