Background: Frontal sinus obliteration is a possible terminus for the management of chronic sinusitis, frontal bone trauma, cancer extirpation, or mucocele. The mucosa of the sinus is stripped and space obliterated with either autogenic, allopathic, or synthetic materials. This study aimed to compare the outcomes of autologous fat and hydroxyapatite cement (HAC) for frontal sinus obliteration.
Methods: A multidatabase systematic review was conducted to collect outcomes on frontal sinus obliterations with either autologous fat or HAC. Outcomes collected included infection of the frontal sinus or obliteration material, mucocele formation, skin infection at the operative site, hematoma or seroma, cosmetic defect, donor site infection, and need for revision procedure. Prevalence of outcomes was analyzed through meta-analysis of proportions.
Results: Twenty studies were ultimately included in the meta-analysis. Sixteen studies reported outcomes for 667 patients obliterated with autologous fat, and 7 studies reported outcomes for 100 patients obliterated with HAC. Prevalence of infection of the frontal sinus or obliteration material, mucocele formation, skin infection at the operative site, hematoma or seroma, and cosmetic defect did not differ statistically between the cohorts. Donor site infection secondary to fat harvesting for fat obliteration had a prevalence of <0.01. Revision rate was 0.04 (95% confidence interval, 0.01-0.8) for fat obliteration and 0.10 (95% confidence interval, 0.00-0.33) for HAC obliteration.
Conclusions: No statistically significant differences in the studied outcomes were detected between obliterations with autologous fat and HAC, suggesting that either is equally suitable and may be up to the surgeon's preference.
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