If nonsurgical treatments are not successful in easing problems of thumb arthritisyour doctor may recommend replacing the surfaces of the joint. Joint replacement surgery is called arthroplasty. The CMC joint an abbreviation for carpometacarpal joint of the thumb is where the metacarpal bone of the thumb attaches to the trapezium bone of the wrist.
Finger joints are essential for many activities, and arthritis in this area can cause significant joint damage and deformity. Artificial finger joint replacement is a surgical procedure that involves the removal of an arthritic or damaged finger joint and replacement with an artificial prosthesis. The hands are made up of 27 bones, which are grouped into carpals, metacarpals and phalanges.
Most activities that involve grasping or pinching are possible because of the thumb's remarkable range of motion. But dexterity comes at a price — an increased risk of osteoarthritis in the first carpometacarpal CMC joint, where the thumb meets the trapezium bone in the wrist. Sometimes the joint becomes so damaged that surgery is necessary.
Total joint replacement at the base of the thumb has been used for almost two decades in cases of trapezium-metacarpal arthritis. The procedure involves the insertion of a titanium metacarpal component and a polyethylene trapezium implant. The system articulates in a semiconstrained ball and socket joint that allows a full range of motion with inherent stability.
The thumb joint at the base of the thumb is the most mobile in the hand. The thumb can move up and down, in and out, and rotate slightly to touch the fingers. We move our thumbs hundreds of times each day.
Basal thumb arthritis, often referred to as CMC joint arthritis or simply thumb joint arthritis, can be very disabling, causing severe hand pain and swelling, as well as decreased strength and range of motion. A painful, arthritic thumb may make it difficult to complete many daily household tasks such as turning a doorknob or opening a jar. Luckily there are solutions out there for you.
If nonsurgical treatments are not successful in easing problems of thumb arthritis, your doctor may recommend replacing the surfaces of the joint. Joint replacement surgery is called arthroplasty. The CMC joint an abbreviation for carpometacarpal joint of the thumb is where the metacarpal bone of the thumb attaches to the trapezium bone of the wrist.
In a joint replacement, the abnormal bone and lining structures of the joint are removed surgically, and new parts are inserted in their places. These new parts may be made of special metal or plastic or specific kinds of carbon-coated implants. The new parts allow the joints to move again with little or no pain.