"The capitate, also known as the os magnum, is the largest of the carpal bones and sits at the centre of the distal carpal row. A distinctive head-shaped bone, it has a protected position in the carpus, and thus isolated fractures are unusual."
Expected headings
"Osteology"
"Ossification"
"Related investigations"
"Plain radiograph"
"Cross-sectional imaging"
"Nuclear medicine"
"The capitate sits in a proximodistal direction with a waist that is proximal to the transverse midline. The capitate head sits in the space allowed by the lunate and scaphoid bones of the proximal carpal bone row. Proximally, the capitate has a rounded surface whilst the distal end has a triangular shape with a palmarly directed apex. The palmar surface is slightly convex with the other surfaces concave being the dorsal, ulnar and radial surfaces. The concavity on the radial aspect in which the scaphoid articulates is called the capitate fossa 5,6. Both dorsal and palmar surfaces are rough to allow for carpal ligament attachment."
"There is potential for articulation of the capitate with the triquetrum at the proximal medial border with radial deviation of the wrist."