Risk profile for recurrence after interdisciplinary treatment of odontogenic maxillary sinusitis: experience of a...

Odontogenic maxillary sinusitis remains a clinical challenge with incompletely understood recurrence patterns. This study aimed to determine the incidence of recurrence and identify associated risk factors following interdisciplinary surgical treatment involving oral and maxillofacial surgery and otorhinolaryngology.

A retrospective cohort of 203 patients treated for OMS over a 10-year period was analyzed. Data included demographic, clinical, radiological, and procedural variables. The primary outcome was OMS recurrence within 12 months after initial surgery. Univariable and multivariable analyses assessed associations between recurrence and defined risk factors.

Among 203 patients (mean age 53.7 ± 18.4 years), the most common etiology was odontogenic cysts (44.3%). OMS recurrence occurred in 15.7% (n = 32) of cases. No significant association was found between recurrence and patient-specific factors (age, smoking, antiresorptive therapy, chemotherapy, sinusitis symptoms), anatomical variables (nasal septum deviation, congested maxillary sinus natural ostium), or procedural aspects (surgical removal of the intraoral cause with or without simultaneous FESS, surgical access route, multilayer soft tissue closure) (P > .05).

Despite a moderate recurrence rate, no significant patient-specific, anatomical, or procedure-specific predictors of recurrence were identified. These findings emphasize the importance of individualized treatment planning and interdisciplinary management. Prospective studies are needed to validate risk stratification tools for recurrence prevention in high-risk OMS patients.