Poster
# 114
Poster |
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6th Internet World Congress for Biomedical Sciences |
Alejandro Nogueira(1), Olatz Alcelay(2), MŞ Jesús Martínez González(3), Angel Perez Arias(4), Francisco Iglesias(5)
(1)(2)(3)(4)(5)Hospital Central de Asturias - Oviedo. Spain
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Contact address: |
Alejandro Nogueira Hospital Central de Asturias Oviedo Asturias 33006 Spain galbizu@construccion.ulma.es |
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[Orthopedics & Traumatology] |
[Plastic Surgery] |
Dorsal metacarpal arteries arise from the dorsal carpal arch (a branch from the radial artery to the dorsal carpal branch of the ulnar artery), except for the first space one which is a direct branch from the radial artery at the first web. They run in the depth of the interosseous spaces of the dorsal hand, vascularizing the dorsal skin. They present two distal anastomosis with the volar vascular system; the first at the neck of the metacarpal and another one at the base of the proximal phalanges. With one of these pivot points the skin of the dorsum of the hand can be trasferred to distal areas on the fingers. The 1st and 2nd branches are constant, but 3rd and 4 th dorsal metacarpal arteries may be atrophic or absent, especially the latter.
We have operated 6 patients with dorsal defects of index and middle fingers, using flaps based on the 1st (4) and 2nd (2) metacarpal arteries. Pivot point has been at metacarpal neck but one. Traumatic deects and skin necrosis have been satisfactorily reconstructed with flaps up to 5x2.5 cm size. Distal limit of reach is at DIP joint. all flaps survived entirely. Donor site was closed primarily at the dorsum of the hand, but large flaps at firs web required skin graft in order to avoid functional retraction. We consider this is a extremely useful flap.
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[Orthopedics & Traumatology] |
[Plastic Surgery] |
