Nasal bone narrowing (osteotomy): what's the difference between endonasal and percutaneous approaches? How to choose the surgical technique

Nasal bone narrowing is a surgery in which an incision is made in the nasal bone, the bone is moved inward, and the nasal bridge is made thinner. The incision can be made using an endonasal approach (from inside the nose) or a percutaneous approach (by making small holes in the skin), and there are differences in the stability of the fracture line and the degree of swelling[1]. In recent years, ultrasonic piezo osteotomy has also been used, with reports of fewer complications[2]. Which method is suitable depends on the shape and width of the nasal bone and the degree of precision required.

What does nasal bone narrowing surgery do?

Nasal bone narrowing is a surgery in which an incision (osteotomy) is made in the nasal bone, the protruding bone on the outside is moved inward, and the nasal bridge is made thinner[3]. The basic approach combines outer and inner bone cuts, and when the nasal bone width is large, cutting from both sides may be performed[3]. It is also used to close the "open roof" that remains after removing a large step[1].

What is the difference in cutting method between endonasal and percutaneous?

For the outer bone cut, there is an endonasal approach (cutting continuously from inside the nose) and a percutaneous approach (cutting by making small holes in the skin)[1]. The percutaneous approach can preserve the membrane surrounding the bone (periosteum), making the fracture line more stable, reducing the risk of blood vessel injury, bleeding and swelling, and making the cutting line easier to control precisely, according to reports[1]. It is particularly chosen in cases where the nasal bone is small or short, for secondary revision, or when precise control is needed[1]. However, there is no single universal technique that works for all noses, and judgment is needed on a case-by-case basis[4].

What is different about piezo (ultrasonic) bone cutting?

Piezo osteotomy is a method that uses ultrasonic vibrations to cut only the bone. A meta-analysis comparing it with conventional osteotomy using chisels reported fewer overall complications and mucosal damage[2]. Research comparing effects on the tear duct has also been conducted, examining differences in risk based on cutting location and method[5]. It is thought that less tissue damage and better control lead to fewer complications[2].

Can swelling and bruising be reduced with different surgical techniques?

Swelling and bruising after nasal surgery can potentially be reduced to some extent through surgical technique and careful measures. Reports indicate that percutaneous methods and piezo osteotomy result in less bleeding and swelling[1][2]. Various methods to reduce post-operative swelling and bruising have been systematically summarized[6]. However, there is significant individual variation in swelling, and it is realistic to expect some downtime regardless of the method used.

Will breathing become difficult if the nose is made thinner?

When the bone is moved inward by outer bone cutting, the airway inside the nose becomes slightly narrower[1]. This effect is particularly pronounced in people with a long nasal bone, and support grafting (spreader graft) may be added to maintain airflow[1]. Pursuing only visual thinness can sometimes sacrifice breathing, so the surgeon's ability to design a balance between narrowing and airflow becomes a measure for choosing your surgeon.

How do I choose a method that suits me? What should I confirm during a consultation?

The selection criteria are the width and shape of the nasal bone, how much thinner you want it to be, and how much importance you place on precision and minimal swelling. During your consultation, ask for explanations about whether endonasal or percutaneous, whether to use piezo, and considerations for breathing and prevention of relapse. Rather than the newness of the equipment itself, identifying which methods this doctor can safely perform will lead to a choice you can feel confident about.