Trapeziometacarpal osteoarthritisalso known as osteoarthritis at the base of the thumb or as rhizarthrosisis a reparitive joint disease affecting the first carpometacarpal joint CMC1. Because of its relative instability, this joint is a frequent site for osteoarthritis. The main complaint of patients is pain.
Arthritis is a condition that irritates or destroys a joint. Although there are several types of arthritis, the one that most often affects the joint at the base of the thumb the basal joint is osteoarthritis degenerative or "wear-and-tear" arthritis. Smooth cartilage covers the ends of the bones.
Collapse deformities of the thumb are all too common in the presence of CMC joint arthritis. This becomes a highly dysfunctional posture over time due to the loss of MCP flexion, web space shortening and thenar muscle atrophy - making moving the thumb away from the palm all but impossible. A targeted stretching and strengthening program and the use of a thumb orthosis designed to support and stabilize the CMC are key to maintaining function and to hopefully preventing, a permanent swan neck posture.
Osteoarthritis of the hand is a common disorder. Although the distal interphalangeal joint is most commonly involved, the basilar joint of the thumb — the carpometacarpal joint — is the most common joint in the hand to require surgery as a result of osteoarthritis. Multiple operative procedures are available and surgeons continue to search for the best approach. For this discussion, I have asked several surgeons to express their preferences, indications and results.
According to the American Academy of Orthopedic Surgeonsthumb arthritis usually occurs after 40 years of age and is more common in women than in men. While arthritis of the thumb can be painful, a doctor can recommend treatments to reduce symptoms and improve a person's range of motion and quality of life. Thumb arthritis is arthritis that occurs in the joint at the base of the thumb, known as the basal joint.
Phone: Fax: Used with permission from the American Society for Surgery of the Hand. In a normal joint, cartilage covers the ends of the bones and allows them to move smoothly and painlessly against one another.
Basal joint arthritis is the result of the wearing away of cartilage in the joint at the base of the thumb. The basal joint allows your thumb to move around so you can perform small motor tasks. Without plenty of cushioning cartilage, the joints become rough and grind over each other when you move, causing more joint damage.
Osteoarthritis OA at the base of the thumb is just as common, but has not been studied as much. In fact, when Lisa Mandl, MD, MPH, a rheumatologist at Hospital for Special Surgery in New York City, first started seeing patients in the clinic, she was surprised at the number of people - mostly older women - who came to her complaining of severe pain at the base of the thumb. Even though the patients had sought relief from cortisone injections, splints, physical therapy and non-steroidal anti-inflammatory medications, they were still experiencing pain severe enough to wake them at night. The only option left was surgical repair of the joint, an option most of Dr.
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.