Stephen J. Schueler, M.D.

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Thumb Tenosynovitis Anatomy

To better understand Dequervain's tenosynovitis, 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 wrist or carpal bones are the: scaphoid, lunate, trapezoid, trapezium, hamate, capitate, triquetrum, and pisiform. The forearm bones are the radius and ulna. Ligaments attach between these bones, and allow the wrist to move, yet remain stable.

Anatomy of the wrist:

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

Last Updated: May 12, 2010 References
Authors: Stephen J. Schueler, MD; John H. Beckett, MD; D. Scott Gettings, MD
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PubMed Thumb Tenosynovitis References
  1. Ilyas A, Ast M, Schaffer AA, Thoder J. De quervain tenosynovitis of the wrist. J Am Acad Orthop Surg. 2007 Dec;15(12):757-64. [18063716]
  2. Pascarelli EF, Hsu YP. Understanding work-related upper extremity disorders: clinical findings in 485 computer users, musicians, and others. J Occup Rehabil. 2001 Mar;11(1):1-21. [11706773]
  3. Rumball JS, Lebrun CM, Di Ciacca SR, Orlando K. Rowing injuries. Sports Med. 2005;35(6):537-55. [15974636]
  4. Schoffl VR, Schoffl I. Finger pain in rock climbers: reaching the right differential diagnosis and therapy. J Sports Med Phys Fitness. 2007 Mar;47(1):70-8. [17369801]
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