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KMID : 0358820080350060663
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Journal of Korean Society of Plastic and Reconstructive Surgeons
2008 Volume.35 No. 6 p.663 ~ p.668
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Cadever dissection and Dynamic CT for Vascular Anatomy of Rectus Abdominis Muscle
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Son Dae-Gu
Kim Jin-Han
Kim Jun-Hyung
Han Ki-Hwan
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Abstract
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Purpose: Pedicled transverse rectus abdominis myocutaneous(TRAM) flap has been a gold standard for breast reconstruction and one of surgical techniques preferred by many surgeons. The authors examined the course of deep epigastric artery focusing on distance from margins of rectus abdominis to pedicle and location of choke vessels to get minimal muscles during pedicled TRAM flap operation.
Methods: Eleven rectus abdominis muscle from nine cadavers were used in this study. Rectus abdominis was separated from the cadavers, deep inferior and superior epigastric artery were isolated and then 8 anatomical landmarks in medial and lateral margins of rectus abdominis were designated. Distance to a pedicle meeting first horizontally was measured and vertical location from umbilicus to choke vessel was determined. In addition, 32 rectus abdominis images of 16 women(average age: 37.2 years old) from 64 channel abdomen dynamic computerized tomography were also examined with the same anatomical landmarks with those of cadavers.
Results: Average distance from four landmarks on lateral margin of rectus abdominis to pedicle was 1.9-3.4cm and 1.8-3.8 cm on medial margin. Choke vessel was located between middle and inferior tendinous intersection in all cases and average distance between two tendinous intersection was 6.7-7.0cm on medial margin and 6.2cm on lateral margin. Location of inferior tendinous intersection was on umbilicus or superior of it in all cases and its average distance from umbilicus was 1.8-5.6cm on medial margin and 2.7-6.2cm on lateral margin.
Conclusion: Distance from medial and lateral margins of rectus abdominis muscle to pedicle was the shortest in inferior tendinous intersection and that was averagely 1.8cm on medial margin and 1.9cm in average on lateral margin. All choke vessels were located between middle and inferior tendinous intersection.
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KEYWORD
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Abdomen rectus muscle, Epigastric arteries, Breast reconstruction
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