Thumb Arthritis Surgery (CMC Arthroplasty)

Thumb Arthritis Surgery is a surgical procedure to treat arthritis in the base of the thumb joint (carpometacarpal or CMC joint).
It involves removing the damaged portion of the joint and replacing it with an implant or using other techniques to restore joint function.

Severe Thumb Arthritis: When conservative treatments (pain medication, physical therapy, splints) fail to provide adequate relief from persistent and worsening thumb arthritis symptoms.

Symptoms may include:

• Severe pain at the base of the thumb.
• Difficulty with daily activities such as gripping, pinching, and turning objects.
• Limited range of motion in the thumb.
• Weakness and instability in the thumb.

Different surgical approaches exist, including:
Trapeziectomy: Removal of the trapezium bone (the bone at the base of the thumb). This may be combined with tendon interposition (using a tendon to cushion the joint) or ligament reconstruction.
Joint Replacement: Replacing the damaged joint with an artificial implant.
Fusion: Fusing the bones of the thumb joint together to create a stable, but less mobile, joint.

Immobilization: The thumb will be immobilized with a splint or cast for several weeks.
Physical Therapy: Physical therapy is crucial for regaining strength, flexibility, and range of motion in the thumb.
Return to Activity: Gradual return to normal activities is recommended, with full recovery often taking several months.