Authors: HD Park YS Min HH Kwak KH Youn EW Lee HJ Kim
Publish Date: 2004/08/03
Volume: 26, Issue: 6, Pages: 428-432
Abstract
The patterns of the feeding vessels to each muscle determine the extent of their safe transposition and the muscle’s value as a pedicled flap in reconstructive surgery This study aimed to demonstrate the point of origin and the intra and submuscular course of the pectoral branch of the thoracoacromial trunk TAT for pectoralis major PM flap surgery Seventy sides of the PM were dissected based on a clinical reference line that has been used for several decades The branching point of the TAT from the axillary artery was located lateral to the midclavicular line on the rightsided specimens 100 and medial to the midclavicular line on the left sides 86 The branching patterns of the pectoral branch to the PM muscle from the TAT were classified into three types In type I the pectoral branches originated directly from the TAT 55 cases 786 In type II 11 cases 157 and type III 4 cases 57 the pectoral branch divided from the medial and lateral pedicle of the TAT respectively The course of the pectoral branch from the TAT in the PM was categorized into three patterns according to the degree of proximity to the midclavicular line In 49 cases 70 the pectoral branch in the PM ran within 1 cm of the midclavicular line The other cases ran 2 cm 20 cases 29 and 3 cm 1 case 1 from the midclavicular line respectively These results provide topographic data of the pectoral branch based on anatomical landmarks and will be useful in surgical planning as well as the procedure for PM flap surgeryThis study was supported by a grant of the Korea Health 21 RD Project Ministry of Health Welfare Republic of Korea 02PJ1PG1CH07–0001 We would like to express our thanks to Ms Seung Hye Kim a student at the dental college of Yonsei University for reviewing this article
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