2023年7月5日 · The third CMC joint is between the capitate and third metacarpal bone. The capitate articulates with a convex facet on the metacarpal base via its triangular and mainly concave distal surface. The capitate bone also takes part in forming the fourth CMC joint, together with the hamate and fourth metacarpal bones.

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.

Fracture dislocations of the multiple carpometacarpal joints [CMCJ] of the fingers are uncommon injuries that can significantly compromise hand function and durability if managed sub-optimally.

2025年1月17日 · The third metacarpal bone and the capitate make up the third CMC joint. The triangular and primarily concave distal aspect of the capitate articulates with a convex facet on the metacarpal base. Together with the hamate and fourth metacarpal bones, the capitate bone contributes to the formation of the fourth CMC joint. This capitate’s ...

2017年11月23日 · What are the 5 most common sources of CMC joint Pain? What is CMC joint osteoarthritis? What causes it? What are the symptoms of CMC joint arthritis? How is CMC joint arthritis diagnosed? What factors affect the stability of the CMC joint? What are the treatment options? What are the complications associated with CMC joint surgery?

2021年7月13日 · Carpometacarpal (CMC) joint dislocations are uncommon dislocations of the hand. There is a strong younger male predominance. These injuries account for less than 1% of hand injuries 4 and are more common in the dominant hand. The following injuries should raise the suspicion of carpometacarpal joint dislocations:

The trapezium, trapezoid, capitate, and second metacarpal bones articulate to form the second CMC joint. Between the capitate and the third metacarpal bone is the third CMC joint. The triangular and often concave distal surface of the capitate articulates with a convex area on the metacarpal base.

2021年2月16日 · The carpometacarpal (CMC) joints are synovial joints formed by articulations of the distal carpal row and the metacarpal bones. The carpometacarpal joints are made up of a number of bony articulations 1.

CMC dislocations may be associated with soft-tissue injuries and fractures of the carpal and/or metacarpal bones. A frequent fracture-dislocation injury is a coronal hamate fracture with dislocation of the 4th and/or 5th CMC joint. If the 3rd CMC joint is involved too, then usually the capitate is also fractured.

The incorporation of the third carpometacarpal joint (CMCJ-3) during wrist arthrodesis is controversial. This retrospective study of 146 consecutive wrist arthrodeses with AO plate fixation specifically addresses this question. In 79 wrist arthrodeses the CMCJ-3 was also arthrodesed, and in 67 the CMCJ-3 was simply bridged.