Lunate
Os lunatum
SkeletalSkeletonArmLeft and right
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- What it is
- Crescent-shaped bone in the centre of the proximal row, articulating with the radius.
- Function
- Proximal-row carpal: adapts its position as the wrist bends so the hand moves smoothly on the forearm.
- Size
- ≈ 12 × 14 × 15 mm
- Clinical note
- The most commonly dislocated carpal bone; Kienböck disease is its avascular necrosis.