Background: Fasciocutaneous flaps supplied by discrete perforator arteries can be raised in numerous parts of the human body and are routinely used in plastic surgery. The aim of this anatomical investigation was to provide a description of the vascular supply of the medial upper arm, to localize and measure the perforator arteries and to define potential perforator flap dimensions in pendency of individual anatomical conditions.
Material And Methods: A total of 20 upper limbs from 11 fresh cadavers were examined. The brachial arteries were exposed and the medial perforator arteries selectively injected with methylene blue and india ink in an alternating sequence. The size of the angiosomes, the diameter and length of the perforators' pedicles and distances between the arteries and the medial epicondyle and apex of the axilla respectively were measured.
Results: On average, 4.55 ± 1.47 perforating arteries arose from the brachial artery and it's medial off branching arteries. Their mean diameter was 0.68 ± 0.27 mm and their pedicles had an average length of 3.62 ± 1.61 cm measured from suprafascial until arborisation. In 80% the first proximal perforator was present in an area of 4 cm radius at centre coordinates of (20/2). A constant distal perforator was found within a circle of 3 cm radius, of which the centre had the coordinates (8/1). The average size of the angiosomes was 121.1 ± 58.5 cm . Direct branches of the brachial artery feed circular shaped vascular territories, whereas superior ulnar collateral arteries (SUCAs) feed oblong shaped territories.
Conclusion: This anatomical study provides valuable data of the medial arm flap in order to be applied clinically. © 2016 Wiley Periodicals, Inc.
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