{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,14]],"date-time":"2025-05-14T00:53:20Z","timestamp":1747184000649,"version":"3.40.5"},"reference-count":18,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2020,1,27]],"date-time":"2020-01-27T00:00:00Z","timestamp":1580083200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Clinical Otolaryngology"],"published-print":{"date-parts":[[2020,3]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objective<\/jats:title><jats:p>Describe a reliable anatomical landmark that can be used to locate the maxillary sinus natural ostium (MSNO) during endoscopic surgery, even if the uncinate process is preserved.<\/jats:p><\/jats:sec><jats:sec><jats:title>Design<\/jats:title><jats:p>Descriptive anatomical.<\/jats:p><\/jats:sec><jats:sec><jats:title>Setting<\/jats:title><jats:p>An anatomical and radiological study was performed to evaluate the consistency of the landmark, denominated \"M\" line.<\/jats:p><\/jats:sec><jats:sec><jats:title>Subjects and Methods<\/jats:title><jats:p>Dissections were performed in 57 cadaver heads (114 sides). In addition, 73 computerised tomography (CT) scans (146 sides) of patients with chronic inflammatory sinonasal disease were analysed using a three\u2010dimensional (3D) reconstruction computer program.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The \"M\" line crossed the MSNO in 112 dissected sides (98.2%) and 140 sides at CT 3D reconstruction (95.9%).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The \"M\" line is a reliable anatomical landmark for predicting MSNO location. As such, it could improve and facilitate endoscopic sinus surgery, using traditional, minimally invasive or uncinate preserving techniques.<\/jats:p><\/jats:sec>","DOI":"10.1111\/coa.13456","type":"journal-article","created":{"date-parts":[[2019,10,1]],"date-time":"2019-10-01T19:23:38Z","timestamp":1569957818000},"page":"177-181","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["\u201cM\u201d line: New anatomical landmark for the maxillary sinus natural ostium"],"prefix":"10.1111","volume":"45","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7708-7560","authenticated-orcid":false,"given":"Janaina Gon\u00e7alves da Silva","family":"Leite","sequence":"first","affiliation":[{"name":"P\u00f3s\u2010gradua\u00e7\u0101o em cirurgia Universidade Federal do Cear\u00e1 Fortaleza Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Joao Flavio","family":"Nogueira","sequence":"additional","affiliation":[{"name":"Sinus Centro Fortaleza, Ceara Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"John","family":"Pallanch","sequence":"additional","affiliation":[{"name":"ENT Department Mayo Clinic Rochester Minnesota"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ticiana Cabral","family":"da Costa","sequence":"additional","affiliation":[{"name":"Cepto \u2013 Otos Fortaleza Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mois\u00e9s Ximenes","family":"Feij\u00e3o","sequence":"additional","affiliation":[{"name":"Cepto \u2013 Otos Fortaleza Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Raquel de Sousa Lobo Ferreira","family":"Querido","sequence":"additional","affiliation":[{"name":"Hospital Geral de Fortaleza Fortaleza Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maria Luzete Costa","family":"Cavalcante","sequence":"additional","affiliation":[{"name":"P\u00f3s\u2010gradua\u00e7\u0101o em cirurgia Universidade Federal do Cear\u00e1 Fortaleza Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2020,1,27]]},"reference":[{"doi-asserted-by":"publisher","key":"e_1_2_8_2_1","DOI":"10.1007\/978-3-540-34020-1_2"},{"volume-title":"Endoscopic Sinus surgery. 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