Distally based sural fasciomuscular flap: anatomic study and application for filling leg or foot defects.

Since 1995, the authors have created 32 distally based superficial sural artery flaps based on the vascular axis of the sural nerve. The creation of the first 18 flaps permitted the authors to view perforators that issued from the gastrocnemius muscles to the vascular axis of the sural nerve. This led to the development of an anatomic study involving 25 cadaveric dissections to establish a relationship between the gastrocnemius muscles and the vascular axis of the sural nerve, with two to three constant and direct perforators from the gastrocnemius to the neurovascular axis. In this article, the technique for harvesting this new muscular flap is described. Between June of 1997 and March of 1998, three patients underwent flap operations. Two fasciomyocutaneous flaps and one fasciomuscular flap were created and were followed by uncomplicated postoperative courses in terms of flap viability and donor sites. In all cases, the flap created was designed to fill bone defects of the leg (one case) or of the foot (two cases). The results were considered to be excellent and stable over time, with follow-up periods ranging from 9 months to 18 months in duration.