The arterial system of the palmar subcutaneous fatty tissue of fingers
was studied by injecting a coloured silicone polymer into the vessels
of 12 fresh human cadaver hands. Arterial vascularisation of these ti
ssues is ensured by small palmar branches arising from the main digita
l arteries: there were an average of 7 branches on each side varying b
etween 4 and 12 in the specimens studied. Three anatomical patterns co
uld be distinguished: an I-shaped configuration in 64% of cases, a nar
row V-shape in 23%, and a Y-shape in 13%. An accompanying venous netwo
rk was always present and drained into either the superficial or deep
venous network. These anatomical findings confirm the vascular reliabi
lity of the homodigital subcutaneous flap described by the authors.