Experience of High-Speed eMAX2plus® Drill in Endoscopic Endonasal Sinus Surgery for Osseous Tissue

The very narrow nasal cavity complicates endoscope endonasal sinus surgery due to hard or thick osseous tissue aggravated by the simultaneous insertion of the drill, endoscope, and other instruments. We found a high ― speed eMAX2plus Ⓡ drill （ ANSPACH, Palm Beach Garden, FL, US ） particularly useful in 2 cases one of choanal atresia in a 4 ― year ― old and one of postoperative sphenoidal cyst in a 69 ― year ― old. The drill very effec-tively facilitated opening of the firm osseous tissue in both cases.