"A modern definition for such sharp methods of debridement is the removal of dead or necrotic tissue or foreign material from and around a wound to expose healthy tissue using a sterile scalpel, scissors or both. It can be performed as a surgical procedure in the operating theatre, involving extensive and aggressive removal of tissue with or without general anaesthesia (surgical debridement), or be more conservative, involving repeated minor tissue sparing debridement that can be performed at the bedside or in a procedure room (sharp debridement)."
http://www.worldwidewounds.com/2002/december/Leaper/Sharp-De...