Quantifying the sharpness of osteotomes for dorsal hump reduction

Abstract

Objective: To assess the relative sharpness of osteotomes after multiple uses, routine maintenance, and sharpening. Methods: This prospective clinical study and mechanical model quantified the relative sharpness of identical osteotomes at baseline; after 3, 6, and 9 uses; and after sharpening techniques compared with osteotomes from hospital central supply. The Instron universal tester developed a force-displacement curve as the osteotome blade cut a standardized suture. Force required to cut the suture is inversely proportional to osteotome sharpness. Results: For osteotomes 1, 2, and 3, dullness occurred after 9 uses (4.836 lb; P