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 thumb CMC (or trapeziometacarpal) joint is a semi-constrained, biconcave saddle joint between the distal surface of the trapezium and the base of the first metacarpal.

The thumb CMCJ is a biconcave–convex saddle joint that allows flexion/extension, adduction/abduction and limited rotation through the joint. There are 16 ligaments that have …

The stated aim of splinting for symptomatic first CMCJ OA is to reduce movement and stabilise the joint as well as reduce load through the ligaments of the first CMCJ. 4 It is also possible that in the presence of inflammation, immobilisation could reduce the nociceptive discharge of peripherally sensitised joint nociceptors. 5 In turn ...

Thumb carpometacarpal osteoarthritis (CMC OA) is a common disease, affecting up to 11% and 33% of men and women in their 50s and 60s, respectively, which leads to pain, laxity and weakness of the CMC joint. Based on the staging of the CMC OA, different forms of treatment can be used, including both conservative and surgical measures.

The first carpometacarpal joint is a sellar joint between the base of the first metacarpal and the trapezium. Stability is maintained mainly by the anterior oblique ligament, the ulnar collateral ligament, the first intermetacarpal ligament, the posterior oblique ligament, and …

2006年5月1日 · We conclude that OA in the first CMCJ develops beyond the age of 50 and that the prevalence hereafter is rapidly increasing, most pronounced among women. Symptoms, exemplified by pain in wringing a dishcloth, are strongly related to radiographic changes.

2012年11月23日 · Severity of first carpometacarpal joint osteoarthritis is evaluated according to clinical and radiographic examinations. When nonsurgical therapies such as splinting and joint injection fail, there are several surgical options to restore function and decrease pain at the first carpometacarpal joint.

The carpometacarpal (CMC) joint of the first ray is a diarthrodial saddle joint comprised of two major articulations, the trapeziometacarpal articulation to the thumb and the scaphotrapezial articulation, as well as two lesser articulations, the trapeziotrapezoid and the trapeziometacarpal to the index finger, determined by the axis of thumb ...

2017年9月19日 · The first carpometacarpal joint (CMCJ) in the hand is a commonly affected joint by osteoarthritis. It causes significant thumb base pain, limiting functional capacity.