[Osteotomies in rhinoplasty].

Osteotomies are performed to modify the shape of the bony part of the nose, therefore they should not be done systematically. Main indications are correction of deviated nose, narrowing of bony vault and roofing of an open roof after important hump resection. The nose should be very precisely analyzed before osteotomies if the surgeon doesn't want to create deformities such as step, inverted V, pinched nose or saddle nose. When too narrowed, bones can also block the airway and lead to functional problems.