How To: Posterior Septal Artery Flap for Endoscopic Repair of Large Nasal Septal Perforation June 17, 2024 Posterior septal artery flap for endoscopic repair of large nasal septal perforation aims to demonstrate the effectiveness of the endoscopic repair of large SPS utilizing flap pedicled with branches of PSA. Pages: 1 2 3 | Single Page