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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.
In the wrist there is the radiocarpal joint between the radius and carpus. Between the carpal bones are the intercarpal articulations and the midcarpal joint . The carpometacarpal joint connects the carpal bones to the metacarpus or metacarpal bones which are joined at the intermetacarpal articulations .
Joints of the hand, X-ray. The bones in each carpal row interlock with each other and each row can therefore be considered a single joint. In the proximal row a limited degree of mobility is possible, but the bones of the distal row are connected to each other and to the metacarpal bones by strong ligaments that make this row and the metacarpus a functional entity.
Joint pain is a common symptom we all experience at some point or another. Painful joints can have a significant impact on quality of life and the ability to do daily activities.
A Barton's fracture is a type of wrist injury where there is a broken bone associated with a dislocated bone in the wrist, typically occurring after falling on top of a bent wrist. [1] It is an intra-articular fracture of the distal radius with dislocation of the radiocarpal joint. [2]
Wrist structures prone to injury are the triangular fibrocartilage complex and the scapholunate ligament. [1] Wrist sprains may occur when a ligament is ruptured or lacerated in severe trauma, stretched or twisted. [1] Commonly, wrist pain is caused by sudden load-bearing or twisting effects, such as falling from a height with an outstretched ...
In human anatomy, the wrist is variously defined as (1) the carpus or carpal bones, the complex of eight bones forming the proximal skeletal segment of the hand; [1] [2] (2) the wrist joint or radiocarpal joint, the joint between the radius and the carpus [2] and; (3) the anatomical region surrounding the carpus including the distal parts of the bones of the forearm and the proximal parts of ...