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Trapeziometacarpal osteoarthritis (TMC OA) is, also known as osteoarthritis at the base of the thumb, thumb carpometacarpal osteoarthritis, basilar (or basal) joint arthritis, or as rhizarthrosis. [ 3 ] [ 1 ] [ 2 ] This joint is formed by the trapezium bone of the wrist and the metacarpal bone of the thumb.
The fracture may be preventable by using wrist guards during certain activities. [1] In those in whom the fracture remains well aligned a cast is generally sufficient. [2] If the fracture is displaced then surgery is generally recommended. [2] Healing may take up to six months. [1] It is the most commonly fractured carpal bone. [3]
Healing of the fracture with a non-anatomic deformity (frequently, a volar flexed "humpback") can also lead to post-traumatic arthritis. Non-unions can result in loss of blood supply to the proximal pole, which can result in avascular necrosis of the proximal segment. Scaphoid fractures may be difficult to diagnose via plain x-ray.
[16] [17] This and other issues contribute to potential to develop arthritis over the years. In part based on these concerns, some surgeon prefer to maintain the lunate in patients younger than 40 years proximal row carpectomy. [6] [18] A surgery called four-corner arthrodesis is an option. [6]
As the arthritis progresses, the finger gets deformed and lose its functions. Moreover, many patients with rheumatoid arthritis have this dysfunction present in both hands and become disabled due to chronic pain. Osteoarthritis is most common at the base of thumb and is usually treated with pain pills, splinting or steroid injections. [2]
A broken finger or finger fracture is a common type of bone fracture, affecting a finger. [1] Symptoms may include pain, swelling, tenderness, bruising, deformity and reduced ability to move the finger. [2] Although most finger fractures are easy to treat, failing to deal with a fracture appropriately may result in long-term pain and disability ...
Symptoms of Bennett fracture are instability of the CMC joint of the thumb, accompanied by pain and weakness of the pinch grasp. Characteristic signs include pain, swelling, and ecchymosis around the base of the thumb and thenar eminence, and especially over the CMC joint of the thumb. Physical examination demonstrates instability of the CMC ...
It is a variation of a jammed finger, where the extensor tendons on the back of the finger are damaged. [18] Mallet finger occurs in similar situations as a jammed finger. The tendon that extends the tip of the finger is torn due to trauma causing it to flex beyond normal range. [17]