RESUMO
Background: Rhinoplasty is a common plastic surgery procedure with evolving surgical techniques. This systematic review and meta-analysis compares the outcomes of piezosurgery versus conventional osteotomy in rhinoplasty. Methods: A comprehensive search of six databases yielded 12 randomized controlled trials (RCTs) comparing piezosurgery (292 cases) to conventional osteotomy (338 cases) in rhinoplasty patients. The examined outcomes included postoperative edema, ecchymosis, complications, pain (using the Visual Analogue Scale-VAS), and operative time. Subgroup analyses were conducted based on the assessment timepoint, surgical approach, and outcome grade. The risk of bias was evaluated using the revised Cochrane tool. Results: Piezosurgery showed a significant reduction in the degree of postoperative edema (second and seventh postoperative days) and ecchymosis (second, fourth, and seventh postoperative days). The external approach in piezosurgery demonstrated greater benefits for both outcomes. Piezosurgery was associated with a significant reduction in overall complications, especially mucosal injuries, compared to conventional osteotomy, with no significant difference regarding postoperative hemorrhage. A significant reduction in pain scores and the need for analgesia was observed with piezosurgery. No significant difference was found in operative time. Conclusions: Piezosurgery offers significant benefits in patient outcomes, with similar operative time between both techniques. However, long-term investigations are still needed.
