Pectoralis major muscle: anatomical features of its arterial supply

Pectoralis major muscle: anatomical features of its arterial supply Despite the extensive use of pectoralis major flaps in reconstructive surgery, certain pectoralis major musculocutaneous flaps may suffer from partial distal necrosis. The aim of the present study was to investigate the origin, length, and external diameter of its arterial pedicles to provide an anatomical basis for alternative techniques in reconstructive surgery. Thirty pectoral region specimens, pertaining to 14 fresh human adult cadavers and one stillbirth, were dissected, after retrograde injection of the brachial artery with red latex in pursuit of this aim. The thoracoacromial trunk (TAT) was the main nourishing vessel, arising from the first and the second parts of the axillary artery in 60% and 40%, respectively. The proximal segment was constantly supplied by the clavicular and the deltoid branches of the TAT, supplemented by its pectoral branch in 30% and the superior thoracic artery in 23.3%. The distal segment was constantly supplied by the lateral perforating branches of the anterior intercostal arteries and the perforating branches of the internal thoracic artery. The pectoral branch of both the TAT (P-TAT), and the axillary artery (PA) and the lateral thoracic artery participated in 90%, 66.7%, and 40%, respectively. Additionally, an arterial pedicle, from the arterial plexus inside the pectoralis minor muscle, was observed in 4/30 (13.3%). The clavicular and pectoral branches of the TAT are reliable pedicles for raising the proximal and distal segments of muscle flaps, respectively. The pectoral branch of axillary artery may be an alternative pedicle in the absence of P-TAT. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png European Journal of Plastic Surgery Springer Journals

Pectoralis major muscle: anatomical features of its arterial supply

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Publisher
Springer Journals
Copyright
Copyright © 2012 by Springer-Verlag
Subject
Medicine & Public Health; Plastic Surgery
ISSN
0930-343X
eISSN
1435-0130
D.O.I.
10.1007/s00238-011-0566-1
Publisher site
See Article on Publisher Site

Abstract

Despite the extensive use of pectoralis major flaps in reconstructive surgery, certain pectoralis major musculocutaneous flaps may suffer from partial distal necrosis. The aim of the present study was to investigate the origin, length, and external diameter of its arterial pedicles to provide an anatomical basis for alternative techniques in reconstructive surgery. Thirty pectoral region specimens, pertaining to 14 fresh human adult cadavers and one stillbirth, were dissected, after retrograde injection of the brachial artery with red latex in pursuit of this aim. The thoracoacromial trunk (TAT) was the main nourishing vessel, arising from the first and the second parts of the axillary artery in 60% and 40%, respectively. The proximal segment was constantly supplied by the clavicular and the deltoid branches of the TAT, supplemented by its pectoral branch in 30% and the superior thoracic artery in 23.3%. The distal segment was constantly supplied by the lateral perforating branches of the anterior intercostal arteries and the perforating branches of the internal thoracic artery. The pectoral branch of both the TAT (P-TAT), and the axillary artery (PA) and the lateral thoracic artery participated in 90%, 66.7%, and 40%, respectively. Additionally, an arterial pedicle, from the arterial plexus inside the pectoralis minor muscle, was observed in 4/30 (13.3%). The clavicular and pectoral branches of the TAT are reliable pedicles for raising the proximal and distal segments of muscle flaps, respectively. The pectoral branch of axillary artery may be an alternative pedicle in the absence of P-TAT.

Journal

European Journal of Plastic SurgerySpringer Journals

Published: Jan 1, 2012

References

  • Anatomical study concerning the origin and course of the pectoral branch of the thoracoacromial trunk for the pectoralis major flap
    Park, HD; Min, YS; Kwak, HH; Youn, KH; Lee, EW; Kim, HJ
  • The alternative supply of the pectoralis major flap based medially in cases with previous surgical use of the internal thoracic artery. An anatomical study
    Guzke, MM; Olaso, AS; Camacho, FJ
  • Rotation of the clavicular portion of the pectoralis major for soft-tissue coverage of the clavicle: an anatomical study and case report
    Williams, GR; Koffler, K; Pepe, M; Wong, K; Chang, B; Ramsey, DM

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