The midcarpal joint is a functional rather than anatomical unit as it has no uninterrupted articular surface. However, the articular surface is generally concave-convex and has been considered a condyloid joint allowing 2 degrees of freedom of movement. It consists proximally of the scaphoid, lunate, and triquetrum articulating with the distal carpal row: the trapezium, trapezoid, capitate, and hamate.
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Carpals | Metacarpals | Phalanges | Arches | Bone and Joint Structure | Help | Hand Kinesiology
Lorie Richards and Janice Loudon, October 1997