A clinical comparative study of silicone prosthesis combined with costal cartilage,auricular cartilage and allogeneic decalci-fied bone matrix in rhinoplasty

MENG Xueyong; YANG Yi; MA Zhibing; CHU Tinggang; GE Chen; HUANG Jinlong

doi:10.3969/j.issn.1673-7040.2025.01.008

Abstract：Objective To investigate the differences in the clinical effects of silicone prosthesis combined with costal cartilage,auricular cartilage and allogeneic decalcified bone matrix in rhinoplasty.Methods A retrospective analysis was conducted based on the clinical data of the patients who underwent rhinoplasty from September 2021 to August 2023.Based on the type of nasal tip framework used,patients were divided into three groups:allogeneic decalcified bone matrix(DBM)group(n=23),costal cartilage group(n=16),and auricular cartilage group(n=18).All groups underwent the same surgical method for constructing the nasal tip scaffold,while silicone pros-thesis was utilized to fill the nasal dorsum.The stability of the nasal strut was evaluated by measuring the nasal tip projection and nasolabial angle before surgery and 6 months after surgery.Postoperative follow-up included assessment of incision healing,postoperative complica-tions,and patient satisfaction at 6 months.MRI evaluation of the transplanted bone and surrounding soft tissue was performed 1 and 6 months after surgery.Results The follow-up period was(9.6±1.7)months(6 to 12 months).All groups exhibited primary wound healing without any complications.Imaging assessments revealed well-maintained graft integrity with clear layers,absence of displacement or deformation,and no signs of inflammation or infection.There was no significant difference in average satisfaction among the 3 groups,which was not sta-tistically significant(P＞0.05).There was no significant difference in nasal tip projection and nasolabial angle among the 3 groups at 6 months postoperatively,with no statistical significance(P＞0.05).Conclusion The utilization of allogeneic decalcified bone matrix for constructing a nasal tip scaffold in rhinoplasty can effectively reduce operation time and prevent complications associated with cartilage donor sites,while also requiring minimal expertise in cartilage carving techniques.This construction method is straightforward and convenient,ensuring excellent stability of the scaffold and yielding postoperative outcomes comparable to those achieved with an autologous cartilage framework.Consequently,it serves as an efficient and secure alternative graft material.