Picure of midcarpal joint

Bone & Joint Structure: Carpals

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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Lorie Richards and Janice Loudon, October 1997