Posterior border of fibula
Margo posterior fibulae
- Synonym: Posterior margin of fibula
- Related terms: Posterior border
Definition
The posterior border of fibula has a rounded appearance compared to the anterior and interosseus (medial) borders. It attaches to the posterior intermuscular septum, which separates the muscles, blood vessels, and nerves in the back compartment from the lateral compartments of the leg.
The upper end of the posterior border aligns with the styloid process (or the apex of the fibula), while the lower part merges with the medial margin of the groove on the back of the lower end of the fibula’s lateral malleolus. This groove accommodates the tendons of the peroneus longus and brevis muscles.
Kindly note that in the old four-border four-surface naming system for the fibula, the posterior border is equivalent to the posterolateral border. For more information, please consult the specifics regarding the body of the fibula.
References
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Text written by Muhammad A. Javaid, MD, PhD © 2023 IMAIOS.
Standring, S. and Gray, H. (2016). ‘Chapter 80: Pelvic girdle, gluteal region and thigh’ in Gray’s anatomy The anatomical Basis of Clinical Practice. (41st ed.) New York: Elsevier, pp. 1405-1406.
