Background:Although the incidence of postoperative acute and chronic rhinosinusitis in patients undergoing a sinus lift procedure is relatively high, a paucity of rhinology literature examines the management of and outcomes for this patient population. The objective of this study was to review the management and postoperative care of sinonasal complications and identify possible risk factors that should be considered prior to and following sinus augmentation.Methods:We identified sequential patients who had undergone a sinus lift procedure and were referred to the senior author (AK) at a tertiary rhinology practice for intractable sinonasal complications and reviewed their charts for demographic data, history of illness including prereferral treatment, examination findings, imaging results, treatment modalities, and culture results.Results:Nine patients were initially treated medically without improvement and subsequently underwent endoscopic sinus surgery. The sinus lift graft material remained intact in 7 patients. Two patients had extrusion of the graft material into the facial soft tissues, resulting in facial cellulitis requiring graft removal and debridement. Seven of the 9 patients had predisposing factors that could have prompted referral to an otolaryngologist for optimization prior to sinus lifting. The mean follow-up was 10 months, and all patients had full resolution of symptoms.Conclusion:Acute and chronic rhinosinusitis is a complication of the sinus lift procedure and is more commonly seen in patients with preexisting sinus disease, anatomic sinonasal obstruction, and Schneiderian membrane perforation. Preoperative evaluation by an otolaryngologist may improve outcomes in patients at risk of sinonasal complications from sinus lift surgery.