[The fasciocutaneous hypothenar flap: preliminary anatomical and clinical study].

The authors have studied the vasculatization of the hypothenar area on 11 fresh hands. X ray done after injection and dissection under magnification confirm the possibility to take a fascio cutaneous flap vascularised by the ulnar digital artery of the fifth finger. Three patients who presented a loss of substance of the palmar site of the fifth finger received a fascio cutaneous hypothenar flap. The donor site was directly closed. This flap was proposed for the loss of substance of the palmar site of the fifth finger in competition with the others flaps.