Finally, the anterior humeral circumflex artery
and two accompanying venae comitantes (three sisters) are cauterized or tied off with 2-0 silk ties.
(15) With the predominant blood supply of the humeral head coming from the arcuate artery (a branch existing lateral to the bicipital groove and originating from the anterior humeral circumflex artery
), earlier surgical techniques potentially had a higher risk of disrupting this critical blood supply.
Gerber and associates (21) reported that the anterior humeral circumflex artery
was the only artery that could alone supply the entire humeral head and that the posterior humeral circumflex artery mainly supplied the greater tuberosity and a small area of the humeral head through interosseous anastamoses with branches of the anterior circumflex artery.