Journal of Rhinology 2008;15(2):124-128.
Published online November 30, 2008.
The Clinical Application of Endoscopic Sphenoidotomy and Anatomical Role of the Superior Turbinate
Hang Sun Cho, Hyun Jik Kim, Kyung Soo Kim, Jun Hee Kim, Sang Yong Park, Hoon Shik Yang
Department of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Chung-Ang University, Seoul, Korea.
내시경 접형동 개방술시 상비갑개의 해부학적 역할과 임상적 적용
조항선, 김현직, 김경수, 김준희, 박상용, 양훈식
중앙대학교 의과대학 이비인후-두경부외과학교실
Background and Objectives
Recently, endoscopic sinus surgery (ESS) is commonly performed to treat the sphenoid sinus disease. Identification of the natural ostium of sphenoid sinus (SS) according to surgeon's operating view play an important role in endoscopic sphenoid approach. This study is undertaken to investigate the role of superior turbinate (ST) as an anatomic landmark of natural ostium of SS in endoscopic sphenoidotomy. MATERIALS AND METHODS: Medical records and computed tomography (CT) images of 77 patients from March 2006 to December 2007 who underwent ESS were analyzed. We tried to investigate the location and distance of the natural ostium on the superior turbinate, skull base and nasal septum. We also measured the anterior wall thickness of the SS by using CT images. RESULTS: The natural ostium of the SS was located on the medial side of the ST in all patients who underwent endoscopic sphenoidotomy (45 cases). The level of posteroinferior end of the ST corresponded to the inferior portion of anterior wall of the SS. The lateral portion thickness of the anterior wall of the SS was thinner than the medial portion (77 cases). CONCLUSION: During an endoscopic sphenoidotomy, the superior turbinate is an important anatomic landmark for identifying the natural ostium of the SS. When widening the anterior wall of SS is performed, we sug-gest that the procedure should be directed to the lateral 1/3 portion, considering the thickness of anterior wall of SS.
Key Words: Sphenoid sinus;Natural ostium;Superior turbinate;Endoscopic sphenoidotomy

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