Dissection of skin and subcutaneous fat. A, Epidermis; B, dermis; C, subdermal plexus of vessels; D, superficial fascia; E, arteries perforating muscularis and deep fascia to join subdermal plexus of vessels. (From Kelleher JC, Sullivan JG, Baibak GJ, et al: Use of a tailored abdominal pedicle flap for surgical reconstruction of the hand, J Bone Joint Surg 52A:1552–1562, 1970.) SEE TECHNIQUE 65.6.