Deviated nose bone-cutting surgery: what causes swelling and bruising to differ?

The extent of swelling and bruising varies depending on the instrument used to cut bone. A meta-analysis showed that bone-cutting using ultrasonic equipment resulted in less swelling, bruising, mucosal injury, and pain at one week post-surgery[1]. However, variability between studies is substantial, and we cannot yet definitively say by how many days recovery is shortened[2].

Does swelling and bruising differ by instrument?

It has been reported to differ. A systematic review and meta-analysis found that ultrasonic bone-cutting significantly reduced swelling, bruising, mucosal injury, and pain at one week post-surgery, with no difference in the time required for bone-cutting or total operative time[1].

Other reviews have addressed this same comparison, and the results of ultrasonic versus conventional bone-only methods have been examined repeatedly[3]. The direction of the findings is consistent, but the magnitude of difference varies across reports.

How much difference is there? How reliable are these numbers?

This is a weakness. A meta-analysis combining 12 randomized controlled trials included 292 cases in the ultrasonic group and 338 in the conventional group, but the between-study heterogeneity indicator I²=98.31% was extremely high, and the confidence interval of the combined estimate was very wide[2].

The large variability is thought to be due to inconsistency between studies in evaluation scales, photograph methods, and blinding status[2]. At present, there is no evidence supporting a concrete number such as "resolution by X days earlier."

At what time point was the comparison made?

Most comparisons were at one week post-surgery. In a meta-analysis focusing on how effects change over time, the conclusion was that time-dependent effects remain uncertain[4].

In other words, "a difference at one week" and "a shorter period until swelling completely resolves" are different matters. When receiving an explanation, confirm what time point is being discussed.

What factors other than the instrument affect swelling?

Intraoperative bleeding. Intraoperative bleeding causes post-operative bruising and swelling, delays recovery, and is reported to worsen outcomes particularly after nasal tip surgery[5].

Perioperative measures are also being examined, and there is a systematic review that broadly collected interventions to reduce swelling and bruising after rhinoplasty[6]. Swelling patterns are not determined by instrument alone.

When should the final shape be assessed?

It is assumed that observation continues for at least one year. In a study evaluating nasal deviation, the period within one year post-surgery is classified as short-term and beyond one year as long-term, evaluated in two stages[7].

Regarding the technique for deviated nose itself, there are reports addressing correction of the nasal tip and columella in curved noses[8]. The main indications for bone-cutting are summarized as closing an open roof after dorsal reduction, narrowing a wide nasal bone, widening a narrow nasal bone, and correcting irregular or deviated nasal bone[9].

Four things to confirm at the consultation

The first is what instrument will be used for bone-cutting.[1]The second is at what time point the explanation of swelling and bruising applies.[4]The third is what preparations will be made to control bleeding.[5]The fourth is when the shape assessment will be performed.[7].

Swelling patterns and appearance depend on bone shape, skin thickness, and pre-existing asymmetry. The numbers presented here are results of aggregated research and do not predict your individual course. Including planning for time off work, confirm specific details at your consultation.