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The TMC joint is a synovial joint between the trapezium bone of the wrist and the metacarpal bone at the base of the thumb. This joint is a so-called saddle joint (articulatio sellaris), unlike the CMC joints of the other four fingers which are ellipsoid joints. [17] This means that the surfaces of the TMC joint are both concave and convex.
The most common initial presenting symptom of wrist osteoarthritis is joint pain. [7] [8] Other signs and symptoms, as with any joint affected by osteoarthritis, include: Loss of motion stiffness, which can be worse after a period of rest, such as when one awakes in the morning. Deformity of the wrist.
Age. The risk of most causes of joint pain increases with age. This may be due to increased wear and stress on joints over time and a higher likelihood of other underlying medical conditions ...
The trapezium is an irregular-shaped carpal bone found within the hand. The trapezium is found within the distal row of carpal bones, and is directly adjacent to the metacarpal bone of the thumb . On its ulnar surface are found the trapezoid and scaphoid bones.
The carpometacarpal joint of the thumb (pollex), also known as the first carpometacarpal joint, or the trapeziometacarpal joint (TMC) because it connects the trapezium to the first metacarpal bone, plays an irreplaceable role in the normal functioning of the thumb. The most important joint connecting the wrist to the metacarpus, osteoarthritis ...
[20] [21] [22] Rheumatoid nodulosis, which may occur in joint areas, can vary in its effect on hand function. [23] Milder cases often do not disturb daily function, whereas severe ones may induce loss-of-function. [23] Besides this, gouty arthritis can be associated with tophi deposits in the joints of the hand. [22] Gout can induce pain and ...
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