Background
Nasal dorsum augmentation is a highly challenging rhinoplastic procedure. Problems encountered in this surgery such as residual humps, irregularities, and asymmetry account for a significant number of revision rhinoplasties.
Objectives
The aim of this meta-analysis is to assess complication rates and graft harvesting site morbidity and revision rates.
Methods
We carried out a systematic review of the literature for pertinent materials in PubMed/Medline, and Google Scholar up to and including August 2020. Also, the reference list of included studies was searched manually. The criteria used were those described in the PRISMA® Declaration for performing systematic reviews.
Results
The initial search yielded in 236 results. After 3 stages of screening, 16 papers (18 groups) were included in the systematic review and meta-analysis. Our results indicated that the total rates for complications, the graft resorption, insufficient augmentation, deviation (graft displacement), infection, irregularity, supra-tip depression, over-correction, hematoma at recipient site, and the visible bulging of the graft, were 2.52%, 3.93%, 1.77%, 2.30%, 1.36%, 1.13 %, 3.06%, 1.36%, and 2.64% respectively. The total rates for donor site hyper trophic scar, and donor site hematoma were 2.64% and 3.58% respectively. The rate of the revision surgery was 3.03%.
Conclusions
Current findings suggest the overall complications and revision rates with the used of diced cartilage wrapped in fascia technique for dorsum augmentation were relatively low and this technique is a reliable treatment choice for patients with primary/secondary dorsum deficiencies. Further studies with larger sample sizes and long-term follow-ups, clearer definitions of complications and objective measurements are warranted to draw reliable practical conclusions.