The Anatomy of the Forearm Extensor Muscles and the Fascia in the Lateral Aspect of the Elbow Joint ComplexValentin C Dones III1*, Steven Milanese2, David Worth3 and Karen Grimmer-Somers4
- Corresponding Author:
- Valentin C. Dones III
International Centre for Allied Health Evidence
University of South Australia
Adelaide, South Australia
E-mail: [email protected]
Received Date: July 23, 2013; Accepted Date: September 16, 2013; Published Date: September 18, 2013
Citation: Dones VCIII, Milanese S, Worth D, Grimmer-Somers K (2013) The Anatomy of the Forearm Extensor Muscles and the Fascia in the Lateral Aspect of the Elbow Joint Complex. Anatom Physiol 3:117. doi: 10.4172/2161-0940.1000117
Copyright: © 2013 Dones VCIII, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Aim: This study aimed to address the lack of detailed information on the fascia, and the potentially diverse attachments of the Extensor Carpi Radialis Brevis and Extensor Digitroum Communis on the lateral epicondyle.
Methodology: Twenty cadavers were dissected by layers consisting of the skin, subcutaneous fat, superficial fascia, deep fascia, and muscles.
Results/Conclusion: The separable attachment of the Extensor Capri Radialis Brevis and Extensor Digitorum Communis on the lateral epicondyle is best described as the Common Extensor Origin. This Common Extensor Origin is formed by the Extensor Digitorum Communis at its superficial portion (approximately 65-75% of the Common Extensor Origin thickness) and by the Extensor Carpi Radialis Brevis at its deepest quarter (approximately 25-35% of the Common Extensor Origin thickness). Distal to the radiocapitellar joint, the proximal bellies of the Extensor Carpi Radialis Brevis and Extensor Digitorum Communis appear tightly attached to the deep fascia. The attachments of lateral intermuscular septum and superficial fascia in the lateral elbow appear to be tight.
Clinical relevance: Cadaveric findings on the location of the Extensor Carpi Radialis Brevis and Extensor Digitorum Communis at the lateral elbow may potentially guide the sonologists during diagnostic scan and surgeons during operation in localizing pathological changes within the Common Extensor Origin in the elbow.