Can rasping revision under local anaesthetic cause change of nose shape or make it worse?

 In our practice, we perform all revision rhinoplasty procedures under general anesthesia, even if for only rasping the bridge line. It's very difficult to get the nose completely numb to operate  on it without significant pain during the procedure. A moderate to significant dorsal hump will require osteotomies placed in the nasal bones to prevent an open roof deformity from occurring.

The bone can be rasped under local anesthesia to reduce the residual hump.  A poly beak is a very, very unlikely complication of this procedure. However, increased width of your bridge is possible if a significant amount of bone is removed without doing osteotomies to reposition the nasal bones.