Comparison of piezosurgery and conventional osteotomy post rhinoplasty morbidities: A double-blind randomized controlled trial

Publication date: Available online 15 January 2019

Source: Journal of Oral and Maxillofacial Surgery

Author(s): Hamid Reza Fallahi, Seied Omid Keyhan, Tirbod Fattahi, Amir Khosrow Mohiti

Abstract

Background

Several approaches have been introduced to reduce soft tissue injury during rhinoplasty. Piezoelectric ultrasonic could be used to perform bone surgeries more precise and avoid soft tissue perforation.

Aim

To compare postoperative pain, edema and ecchymosis in internal lateral osteotomies performed by the piezosurgery device to that using conventional method.

Materials and methods

In this double-blind, randomized controlled trial (RCT) patients who needed osteotomy of lateral nasal walls were randomly assigned to the group A and B. Patients in group A received conventional intra nasal lateral osteotomy method using osteotome and for patients in group B internal lateral osteotomy was performed by the piezosurgery device. Postoperative pain was assessed 1, 2 and three days after surgery using the visual analogue scale, edema graded based on a 4-grade visual scale, and ecchymosis was also assessed by a 3-grade visual scale, 2 and seven days after surgery. Data were analyzed by the Mann-Whitney U test with a significant level of 0.05.

Results

Overall 20 patients with 10 in each group were included in this study. Post-operative pain and ecchymosis were significantly lower in group B patients at all time points (P<0.05). Edema was significantly lower in group B after two days (P=0.043) while the difference was not significant after seven days (P=0.280).

Conclusion

Performing internal lateral osteotomy using the piezosurgery device is associated with lower postoperative pain, edema and ecchymosis when compared to conventional osteotomy.

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