Dorsal Augmentation: A Review of Current Graft Options.

Background: Dorsal augmentation is one of the more complication-prone procedures in rhinoplasty, demanding ample skill and experience to produce an aesthetic and functional result. Numerous autologous grafts, allografts, xenografts, and alloplastic materials have been attempted for augmentation with varying success. Each graft material has its own unique properties that require varying surgical intricacies. The relative risks and benefits of these strategies and materials are also variable and must be weighed. Alloplastic implants are commonly used in eastern countries, but, due to different patient populations and complication profiles, have found less acceptance among western surgeons.

Methods: A PubMed search was done using the terms "dorsal augmentation rhinoplasty," "liquid rhinoplasty," and "grafts used for rhinoplasty." Publication dates ranging from 1957-2022 were included. Abstracts were screened for relevance, and references from each article were reviewed to identify further articles. Chapters on dorsal augmentation from two key rhinoplasty textbooks were also reviewed.

Results: A total of 79 articles and 2 textbooks were formally screened; of these, 65 resources were included. Findings were grouped under the headings "facial analysis," "ethnic factors in graft selection," "graft characteristics," "septal cartilage," "auricular cartilage," "costal cartilage," "diced cartilage grafts," "bone grafts," "soft tissue grafts," "nonsurgical/liquid rhinoplasty," and "alloplastic implants."

Conclusions: Current dorsal augmentation literature focuses on retrospective studies and expert experiences. There are limited quantitative and prospective studies present to delineate an ideal graft. With consistently advancing technology and knowledge of facial aesthetics, a surgeon must maintain a thorough understanding of the current graft and implant options to offer a specialized treatment plan for each deformity and patient.