Osteotomies may be performed to narrow or widen the nasal base, repair an open-roof deformity after dosal hump resection, and correct symmetrical or asymmetrical bone deformities.

• 临床上可通过截骨的方法缩窄或扩宽鼻基底，鼻背驼峰祛除后修复开放式屋顶畸形，矫正对称或不对称骨畸形。