Hamate

Description

• General
  • A part of the distal carpal row and has a characteristic hook on its palmar surface.
  • Resting on the fourth and fifth metacarpal bones.
• Anatomic Description
  • The superior surface is narrow, convex and articulates with the Lunate.
  • The inferior surface is concave and articulates with the fourth and fifth metacarpal bones.
  • The dorsal surface is triangular and rough for ligamentous attachment.
  • The medial surface articulates with the Cuneiform bone.
  • The lateral surface articulates with the Capitate.

---

Actions

• Articulations
  • Lunate articulates with proximal margin.
  • The fourth and fifth metacarpals articulate with the base distally.
  • Triquetrum articulates with medial surface.
  • Capitate articulates with lateral surface.
  • Hook of the Hamate is distal and radial in relation to the Pisiform.
• Ligament Attachments
  • Transverse carpal ligament
  • Piso-hamate ligament
  • Triquetro-hamate ligament
  • Capito-hamate ligament

---

Vascular Supply

• Radial Artery

---

Clinical Significance

• Hamate Fracture

---

See Also

• Hand and Wrist Anatomy (Main)
• Hand And Wrist Anatomy
• Wrist Pain (Main)

---