RESUMEN
Objective:To explore the effect of two different treatment methods of dorsum implants using autologous costal cartilage, accordion technique (AT) and multilayer oppositional suture technique (MOST), in preventing complications such as distortion and warping of the grafts.Methods:From January 2016 to December 2019, 119 patients underwent rhinoplasty with autologous costal cartilage as the dorsum implant. The dorsum implants were processed by two different techniuqes. Medical charts and operative records were reviewed to summary the complications, especially warping. Patients′ subjective satisfaction and doctors′ objective measurement of the postoperative nasal appearance were evaluated with a grading system.Results:The postoperative follow-up duration was 6 to 28 months. Graft exposure, mobility, or significant resorption, pneumothorax or significant donor-site pain were not observed. The warping rate was higher in the AT (7.8%, 6/77) than in the MOST (2.4%, 1/42) group, although not significantly. Overall, there were no differences in overall patient functional and aesthetic satisfaction between the two groups.Conclusions:Multilayered oppositional suture technique for the autologous costal cartilage grafting may minimize the complication of graft warping and might be an effective alternative for nasal dorsal augmentation, particularly in Asian patients.