Frontal Sinus Posterior Table Fractures in a Goat

Abstract

Objective The goal of this study was to investigate how patency of the nasofrontal outflow tract would affect the healing of the frontal sinus in the setting of displaced, posterior table fractures in the adult goat (Capra Hircus). Methods Posterior table fractures were created in 20 adult goats (Capra Hircus). The nasofrontal outflow tract was obstructed in 10 goats and left patent in 10. Gross, radiologic, and histological evaluation was carried out at 6 months post-operatively. Results All posterior table fractures healed without gross or radiological evidence of mucosal ingrowth. Obstruction of the nasofrontal outflow tract resulted in an increased rate of mucocele formation. Histological analysis did not reveal significant mucosal ingrowth in either group. Conclusions An occluded nasal frontal outflow tract leads to an increase rate in mucocele formation at 6 months. There is no gross or radiographic evidence that mucosal ingrowth into the posterior table occurs at 6 months. These findings would suggest that not all significantly displaced posterior table fractures need to be surgically addressed if the nasofrontal outflow tract is patent.