Like the tibia, the shaft of the fibula has three borders (anterior, posterior, and interosseous) and three surfaces (lateral, posterior, and medial), which lie between the borders (Fig. 6.56):
The anterior border is sharp midshaft and begins superiorly from the anterior aspect of the head.
The posterior border is rounded and descends from the region of the styloid process of the head.
The interosseous border is medial in position.