pectoralis major myocutaneous flap
Regional muscle and skin flap commonly used for reconstruction in head and neck surgery. Based on the pectoralis major muscle with overlying skin paddle.
Full Definition
A reliable regional flap consisting of the pectoralis major muscle with an overlying skin paddle, commonly used for reconstruction of defects in head and neck oncology surgery. The flap is based on the pectoral branch of the thoracoacromial artery and can be used for both internal lining and external coverage. It is particularly useful for reconstruction of the oral cavity, oropharynx, hypopharynx, and external neck defects. While considered a workhorse flap due to its reliability and ease of harvest, it has limitations including bulk, limited reach to certain anatomical sites, and potential donor site morbidity. The flap can be used as a myocutaneous flap with skin, a muscle-only flap, or an osteomyocutaneous flap when combined with a rib segment.
Usage
Usage note: Specify whether used as myocutaneous, muscle-only, or osteomyocutaneous variant.
In Context
- "Reconstruction was performed using a pectoralis major myocutaneous flap to close the pharyngeal defect." — Surgical report
- "The pectoralis major myocutaneous flap showed excellent viability with no signs of partial necrosis at the distal margin." — Post-operative assessment