{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,31]],"date-time":"2026-07-31T00:19:05Z","timestamp":1785457145110,"version":"3.56.0"},"reference-count":24,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2017,11,13]],"date-time":"2017-11-13T00:00:00Z","timestamp":1510531200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int Forum Allergy Rhinol"],"published-print":{"date-parts":[[2018,1]]},"abstract":"<jats:sec><jats:title>Background<\/jats:title><jats:p>Endoscopic Draf 2B and Draf 3 frontal sinusotomies are frequently performed for chronic refractory frontal rhinosinusitis. The purpose of this study was to compare outcomes between Draf 2B and Draf 3 procedures.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A retrospective cohort study was conducted comparing patients undergoing bilateral Draf 2B vs Draf 3 procedures from 2000 to 2016. Patients with neoplasia, dysplasia, mucocele, cystic fibrosis, or ciliary dyskinesia were excluded. Preoperative disease parameters included number of prior surgeries, presence of polyps, preoperative 22\u2010item Sino\u2010Nasal Outcome Test (SNOT\u201022) score, frontal Lund\u2010Mackay score, anterior\u2010posterior diameter of the frontal ostium, and Global Osteitis Scoring Scale (GOSS). Postoperative outcomes included SNOT\u201022 score, neo\u2010ostium patency, surgical revision rates, and complications.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>A total of 21 patients with bilateral Draf 2B and 17 patients with Draf 3 surgeries were compared. Mean follow\u2010up time was 15.6 months. No significant differences were seen between groups for any preoperative disease parameter. Both cohorts showed statistically significant (<jats:italic>p<\/jats:italic> = 0.0001 [Draf 2B]; <jats:italic>p<\/jats:italic> = 0.0001 [Draf 3]) and clinically meaningful (\u0394 = 24.1; \u0394 = 24.9) improvements in SNOT\u201022 at last follow\u2010up vs preoperatively. The Draf 2B group had greater improvement in SNOT\u201022 score than the Draf 3 group at 1 to 3 months (<jats:italic>p<\/jats:italic> = 0.003), but the magnitude of improvement equalized at 5 to 9 months (<jats:italic>p<\/jats:italic> = 0.66) and last follow\u2010up (<jats:italic>p<\/jats:italic> = 0.90). No significant differences were noted between groups regarding patency, revision rates, or complications.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Both Draf 2B and Draf 3 procedures offer durable symptomatic improvement for patients with refractory frontal CRS. The Draf 2B is associated with earlier postoperative symptom improvement and overall shows comparable long\u2010term outcomes to the Draf 3 sinusotomy.<\/jats:p><\/jats:sec>","DOI":"10.1002\/alr.22032","type":"journal-article","created":{"date-parts":[[2017,11,13]],"date-time":"2017-11-13T10:39:01Z","timestamp":1510569541000},"page":"25-31","source":"Crossref","is-referenced-by-count":31,"title":["Equivalence in outcomes between Draf 2B vs Draf 3 frontal sinusotomy for refractory chronic frontal rhinosinusitis"],"prefix":"10.1002","volume":"8","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0752-5796","authenticated-orcid":false,"given":"Vishal S.","family":"Patel","sequence":"first","affiliation":[{"name":"Division of Rhinology, Department of Otolaryngology\u2013Head and Neck Surgery Stanford University School of Medicine  Stanford CA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Garret","family":"Choby","sequence":"additional","affiliation":[{"name":"Division of Rhinology, Department of Otolaryngology\u2013Head and Neck Surgery Stanford University School of Medicine  Stanford CA"},{"name":"Department of Otorhinolaryngology Mayo Clinic  Rochester MN"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Liang\u2010Chun","family":"Shih","sequence":"additional","affiliation":[{"name":"Division of Rhinology, Department of Otolaryngology\u2013Head and Neck Surgery Stanford University School of Medicine  Stanford CA"},{"name":"Department of Otorhinolaryngology China Medical University Hospital  Taichung Taiwan (R.O.C.)"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zara M.","family":"Patel","sequence":"additional","affiliation":[{"name":"Division of Rhinology, Department of Otolaryngology\u2013Head and Neck Surgery Stanford University School of Medicine  Stanford CA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jayakar V.","family":"Nayak","sequence":"additional","affiliation":[{"name":"Division of Rhinology, Department of Otolaryngology\u2013Head and Neck Surgery Stanford University School of Medicine  Stanford CA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Peter H.","family":"Hwang","sequence":"additional","affiliation":[{"name":"Division of Rhinology, Department of Otolaryngology\u2013Head and Neck Surgery Stanford University School of Medicine  Stanford 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