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Haas, F; Weiglein, A; Schwarzl, F; Scharnagl, E.
The lower trapezius musculocutaneous flap from pedicled to free flap: anatomical basis and clinical applications based on the dorsal scapular artery.
Plast Reconstr Surg. 2004; 113(6):1580-1590 Doi: 10.1097/01.PRS.0000117188.03152.10 (- Case Report)
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Leading authors Med Uni Graz: Haas Franz
Co-authors Med Uni Graz: Scharnagl Erwin; Schwarzl Franz; Weiglein Andreas
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Abstract:: The pedicled lower trapezius musculocutaneous flap is a standard flap in head and neck reconstruction. A review of the literature showed that there is no uniform nomenclature for the branches of the subclavian artery and the vessels supplying the trapezius muscle and that the different opinions on the vessels supplying this flap lead to confusion and technical problems when this flap is harvested. This article attempts to clarify the anatomical nomenclature, to describe exactly how the flap is planned and harvested, and to discuss the clinical relevance of this flap as an island or free flap. The authors dissected both sides of the neck in 124 cadavers to examine the variations of the subclavian artery and its branches, the vessel diameter at different levels, the course of the pedicle, the arc of rotation, and the variation of the segmental intercostal branches to the lower part of the trapezius muscle. Clinically, the flap was used in five cases as an island skin and island muscle flap and once as a free flap. The anatomical findings and clinical applications proved that there is a constant and dependable blood supply through the dorsal scapular artery (synonym for the deep branch of the transverse cervical artery in the case of a common trunk with the superficial cervical artery) as the main vessel. Harvesting an island flap or a free flap is technically demanding but possible. Planning the skin island far distally permitted a very long pedicle and wide arc of rotation. The lower part of the trapezius muscle alone could be classified as a type V muscle according to Mathes and Nahai because of its potential use as a turnover flap supplied by segmental intercostal perforators. The lower trapezius flap is a thin and pliable musculocutaneous flap with a very long constant pedicle and minor donor-site morbidity, permitting safe flap elevation and the possibility of free-tissue transfer.
Find related publications in this database (using NLM MeSH Indexing): Adult -; Arteries - anatomy and histology; Female -; Head and Neck Neoplasms - surgery; Humans -; Male -; Middle Aged -; Muscle, Skeletal - anatomy and histology Muscle, Skeletal - blood supply; Shoulder - anatomy and histology; Subclavian Artery - anatomy and histology; Surgical Flaps -; Tissue and Organ Harvesting - methods