Stephen J. Schueler, M.D.

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Sprained Wrist Anatomy

To better understand wrist sprain, it helps to understand the anatomy of the wrist joint.

The wrist is made of 10 bones: 8 carpal bones and 2 forearm bones. The carpal bones include the scaphoid, lunate, trapezoid, trapezium, hamate, capitate, triquetrum, and pisiform. The forearm bones include the radius and ulna. Ligaments hold the bones together during movement.

Structures of the wrist include:

  • Forearm, wrist and hand bones
  • Carpal bones of the wrist
  • Metacarpal bones of the hand
  • Tendons of the wrist

Last Updated: Nov 3, 2008 References
Authors: Stephen J. Schueler, MD; John H. Beckett, MD; D. Scott Gettings, MD
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PubMed Sprained Wrist References
  1. De Schrijver F, De Smet L. Fracture of the hook of the hamate, often misdiagnosed as "wrist sprain". J Emerg Med. 2001 Jan;20(1):47-51. [11165838]
  2. Haims AH, Moore AE, Schweitzer ME, Morrison WB, Deely D, Culp RW, Forman HP. MRI in the diagnosis of cartilage injury in the wrist. AJR Am J Roentgenol. 2004 May;182(5):1267-70. [15100130]
  3. Musharafieh RS, Macari G. Salter-Harris I fractures of the distal radius misdiagnosed as wrist sprain. J Emerg Med. 2000 Oct;19(3):265-70. [11033273]
  4. Staebler MP, Moore DC, Akelman E, Weiss AP, Fadale PD, Crisco JJ 3rd. The effect of wrist guards on bone strain in the distal forearm. Am J Sports Med. 1999 Jul-Aug;27(4):500-6. [10424221]
  5. Wollman S. Patient education series. Sprains and strains. Nursing. 2003 Sep;33(9):47. [14501515]
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