- See:
      - Blood Supply to the Wrist

- Exam of Capitate:
      - palpable immediately proximal to the base of the 3rd metacarpal;
      - w/ wrist is in neutral position, one may palpate a small depression in capitate;
       - w/ wrist is flexed depression rolls distally, & capitate slides out from under lunate to create a fullness where depression has been;

- Injury & Treatment:
    - because of capitate's protected position, isolzated injuries are rare;
    - mechanism of injury is dorsiflexion and slight radial deviation;
    - mid axial dorsiflexion forces frx of scaphoid initially, & then distal dorsal rim of radius strikes head of capitate, causing it to frx;
    - treatment requires ORIF of both scaphoid and capitate fractures

Chronic capitolunate instability

Original Text by Clifford R. Wheeless, III, MD.

Last updated by Data Trace Staff on Thursday, December 20, 2012 10:49 pm