Correlations between anatomic variations of maxillary sinus ostium and postoperative complication after sinus lifting

• Published in: Journal of the Korean Association of Oral and Maxillofacial Surgeons Vol. 42; no. 5; pp. 278 - 283
• Main Authors: Lee, Jang Won, Yoo, Ji Yong, Paek, Seung Jae, Park, Won-Jong, Choi, Eun Joo, Choi, Moon-Gi, Kwon, Kyung-Hwan
• Format: Journal Article
• Language: English
• Published: Korea (South) The Korean Association of Oral and Maxillofacial Surgeons 01.10.2016; 대한구강악안면외과학회
• Subjects: Original; 치의학; Maxillary sinusitis; Sinus floor augmentation; Anatomic variation; Ostio-meatal complex; Maxillary sinus
• ISSN: 2234-7550; 2234-5930
• DOI: 10.5125/jkaoms.2016.42.5.278

The maxillary sinus mucosa is reported to recover to preoperative sterility after sinus floor elevation. However, when drainage of maxillary sinus is impaired, recovery can be delayed and maxillary sinusitis can occur. Therefore, in this study, we investigated the correlations between anatomic variants that can interrupt the ostium of the maxillary sinus and incidence of complication after sinus lifting. The subjects are 81 patients who underwent sinus lifting in Wonkwang University Dental Hospital (Iksan, Korea). Computed tomography (CT) images of the subjects were reviewed for presence of nasal septum deviation, anatomic variants of the middle turbinate, and Haller cells. Correlations between anatomic variations and occurrence of maxillary sinusitis were statistically analyzed. Patients with anatomic variants of ostio-meatal units, such as deviated nasal septum, concha bullosa or paradoxical curvature of the middle turbinate, or Haller cells, showed a higher rate of complication. However, only presence of Haller cell showed statistically significant. Before sinus lifting, CT images are recommended to detect anatomic variants of the ostio-meatal complex. If disadvantageous anatomic variants are detected, the use of nasal decongestants should be considered to reduce the risk of postoperative sinusitis.