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This surgery stops all movement at that joint and therefore eliminates the pain. [1] The benefit of fusion is pain relief and the downside is elimination of motion at the fused joint, which can hinder function. Arthritic joint replacements are usually the most effective surgical option in more youthful and active patients.
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.
Osteoarthritis commonly affects three main sites in the hand: the base of the thumb, where the thumb and wrist converge, known as the carpometacarpal (CMC) joint; the joint closest to the fingertip, referring to the distal interphalangeal joint (DIP); the middle joint of a finger, referring to the proximal interphalangeal joint (PIP). [5]
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The carpometacarpal (CMC) joints are five joints in the wrist that articulate the distal row of carpal bones and the proximal bases of the five metacarpal bones.. The CMC joint of the thumb or the first CMC joint, also known as the trapeziometacarpal (TMC) joint, differs significantly from the other four CMC joints and is therefore described separately.
For the last 45 years, [when?] the most successful and common form of arthroplasty is the surgical replacement of arthritic or destructive or necrotic joint or joint surface with a prosthesis. [medical citation needed] For example, a hip joint that is affected by osteoarthritis may be replaced entirely (total hip arthroplasty) with
Osteoarthritis of the wrist can be idiopathic, but it is mostly seen as a post-traumatic condition. [ 1 ] [ 2 ] There are different types of post-traumatic osteoarthritis. Scapholunate advanced collapse ( SLAC ) is the most common form, followed by scaphoid non-union advanced collapse ( SNAC ). [ 3 ]