Stephen J. Schueler, M.D.

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Palsy Radial Nerve Anatomy

To better understand radial tunnel syndrome, it helps to understand the anatomy of the elbow joint.

The elbow consists of three bones:

  • Humerus:
    • The large, long bone in the upper arm
    • The two prominent areas of the humerus on the inside and outside of the elbow are referred to as the epicondyles.
    • The muscles that raise the wrist and hand attach to the lateral epicondyle.
    • Muscles that flex the wrist attach to the medial epicondyle.
  • Radius:
    • One of the long bones in the forearm
  • Ulna:
    • One of the long bones in the forearm

These three bones are bonded together by strong bands, called ligaments. The ligaments, muscles and tendons keep the bones of the elbow together during movement.

Last Updated: Jul 8, 2009 References
Authors: Stephen J. Schueler, MD; John H. Beckett, MD; D. Scott Gettings, MD
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PubMed Palsy Radial Nerve References
  1. Barnum M, Mastey RD, Weiss AP, Akelman E. Radial tunnel syndrome. Hand Clin. 1996 Nov;12(4):679-89. [8953288]
  2. Sarhadi NS, Korday SN, Bainbridge LC. Radial tunnel syndrome: diagnosis and management. J Hand Surg [Br]. 1998 Oct;23(5):617-9. [9821607]
  3. Sotereanos DG, Varitimidis SE, Giannakopoulos PN, Westkaemper JG. Results of surgical treatment for radial tunnel syndrome. J Hand Surg [Am]. 1999 May;24(3):566-70. [10357537]
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