PMID- 37950636 OWN - NLM STAT- MEDLINE DCOM- 20240411 LR - 20240411 IS - 1531-4995 (Electronic) IS - 0023-852X (Linking) VI - 134 IP - 5 DP - 2024 May TI - Cadaveric and Computed Tomography Analysis of the Anterior Ethmoidal Artery Flap. PG - 2100-2104 LID - 10.1002/lary.31162 [doi] AB - BACKGROUND: The anterior ethmoidal artery (AEA) flap has been successful in repairing anterior nasal septal perforations and has been presumed to be axially based on AEA branches coursing through or around the cribriform plate (CP). However, limited evidence supports the flap's axial supply. The purposes of this cadaveric and computed tomography (CT) study were to assess the arterial anatomy from the CP to the septum, and to determine AEA flap length to predict ideal flap base width. METHODS: Ten fresh latex-injected cadavers were utilized for endoscopic dissection to identify arteries traversing the CPs on each side. First, arterial trajectories along the dorsal septum were recorded. Measurements were then made bilaterally along the septum from the middle turbinate (MT) axilla to the nasal branch of the AEA (NBAEA) traversing the CP. Additionally, 100 sinus CTs were reviewed to measure AEA flap lengths bilaterally. RESULTS: From 10 cadavers, 20 sides were utilized for measurements. In all cadavers, the AEA septal branches coursed diagonally or horizontally along the dorsal septum, and never directly vertically. The mean distance from the MT axilla to the NBAEA was 1.24 +/- 1.93 cm (range = 1-1.5 cm). Based on CTs, the mean AEA flap length was 6.40 +/- 0.60 cm. CONCLUSIONS: Based on the non-vertical courses of AEA septal branches, the AEA flap is more likely a random transposition flap than an axial flap. Average AEA flap length ranged from 6.0 to 7.0 cm. Assuming 3:1 length:width ratios, AEA flap base widths should be about 2.0-2.3 cm. LEVEL OF EVIDENCE: NA Laryngoscope, 134:2100-2104, 2024. CI - (c) 2023 The American Laryngological, Rhinological and Otological Society, Inc. FAU - Donaldson, Lane B AU - Donaldson LB AUID- ORCID: 0000-0003-2941-7144 AD - Department of Otolaryngology-Head and Neck Surgery, Henry Ford Health, Detroit, Michigan, U.S.A. FAU - Deeb, Robert H AU - Deeb RH AUID- ORCID: 0000-0001-5845-9920 AD - Department of Otolaryngology-Head and Neck Surgery, Henry Ford Health, Detroit, Michigan, U.S.A. FAU - Momin, Suhael AU - Momin S AD - Department of Otolaryngology-Head and Neck Surgery, Henry Ford Health, Detroit, Michigan, U.S.A. FAU - Eide, Jacob G AU - Eide JG AD - Department of Otolaryngology-Head and Neck Surgery, Henry Ford Health, Detroit, Michigan, U.S.A. FAU - Craig, John R AU - Craig JR AUID- ORCID: 0000-0002-7377-4782 AD - Department of Otolaryngology-Head and Neck Surgery, Henry Ford Health, Detroit, Michigan, U.S.A. LA - eng PT - Journal Article DEP - 20231111 PL - United States TA - Laryngoscope JT - The Laryngoscope JID - 8607378 SB - IM MH - Humans MH - *Surgical Flaps/blood supply MH - *Turbinates MH - Arteries/anatomy & histology MH - Tomography, X-Ray Computed MH - Endoscopy/methods MH - Cadaver OTO - NOTNLM OT - flap anatomy OT - nasal septal perforation OT - septal perforation repair OT - septoplasty OT - transposition flap EDAT- 2023/11/11 20:43 MHDA- 2024/04/11 06:42 CRDT- 2023/11/11 06:43 PHST- 2023/10/09 00:00 [revised] PHST- 2023/09/19 00:00 [received] PHST- 2023/10/17 00:00 [accepted] PHST- 2024/04/11 06:42 [medline] PHST- 2023/11/11 20:43 [pubmed] PHST- 2023/11/11 06:43 [entrez] AID - 10.1002/lary.31162 [doi] PST - ppublish SO - Laryngoscope. 2024 May;134(5):2100-2104. doi: 10.1002/lary.31162. Epub 2023 Nov 11.