What is nasal bone narrowing (osteotomy)? Changeable width and precautions regarding respiration

Nasal bone narrowing is a surgery in which an incision is made in the nasal bone and moved inward to reshape the bony nasal width. The range that can be narrowed varies depending on the bone's width, length, and asymmetry, and narrowing excessively may affect nasal breathing[1]。

What does the surgery change?——The bone width is the target

Nasal bone narrowing primarily changes the bony width of the upper nasal bridge. Lateral osteotomy is also used to move broad nasal bones inward, close bony gaps remaining after aquiline nose reduction, and correct deviated nasal bones[1][2]On the other hand, the width of the alae and nasal tip is largely influenced by cartilage, skin, and soft tissue, and does not change in the same way with bone-cutting alone.

How to move the bone?——It changes depending on the cutting position

The method of bone movement is designed by combining lateral osteotomy, medial osteotomy, and intermediate osteotomy as needed. Textbooks present pathways such as high-low-high and percutaneous perforation techniques, and it is stated that the method should be selected depending on the length, thickness, and curvature of the nasal bone, and whether it is revision surgery.[1][2]The direct comparative data showing that a specific pathway is superior for all patients was limited in the materials confirmed this time.

Where is the limit?——Do not decide by thinness alone

The nasal bone should not simply be made narrower; rather, it is judged by the line continuing from the glabella to the nasal tip and the width of the entire face. The more a long nasal bone is moved inward, the greater the possibility of airway narrowing, and a spreader graft (a graft that supports the width in the center of the nasal bridge) may be considered to maintain the nasal valve.[1]Both aesthetic appearance and respiratory function must be evaluated simultaneously.

What causes variation in swelling and bruising?

The degree of swelling and bruising varies depending on the extent of bone manipulation, instruments used, and concurrent rhinoplasty procedures. Interventions to reduce swelling and bruising after rhinoplasty have been examined in systematic reviews, but there is no data that can uniformly guarantee individual recovery timelines.[3] Ultrasonic osteotomy is reported as an option for precise bone handling, but generalizing that it is always superior to conventional methods requires consideration of surgeon experience and other factors.[4][3]Ultrasonic osteotomy is reported as an option for precise bone handling, but generalizing that it is always superior to conventional methods requires consideration of surgeon experience and other factors.[4]。

Three discussion points to confirm during consultation

What should be confirmed is whether the primary concern lies in the bone, cartilage, or alae, whether breathing can be maintained at the desired width, and to what extent asymmetry can be corrected. The necessity and approach of osteotomy are individually determined by the physician after examining the nasal bone shape and nasal breathing.