All the following instruments are required for tonsillectomy except:
(A) Coblation wand (B) Bipolar cautery (C) Microdebrider (D) Harmonic scalpel
(C) Ans: C. Microdebrider(Ref: Scott-Brown's 7Ie p3576; Cummings Pediatric Otolaryngology By Marci M. Lesperance, Paul W. Flint/p51; Dhingra 6/e p430)All these four instruments are used in different techniques of tonsillectomy.Microdebrider is less commonly used than others as it leaves behind a small amount of tissue covering theconstrictor muscle.Hence, preferred answer would be microdebrider.