see also [[Neck and spine trauma]], [[tracheobronchial injury]], [[Airway#neck trauma airway|neck trauma airway]] # mechanism - "clothes line" injuries - "dashoboard injuries" -→ hyperextension of neck and compression fo larynx btwn dashboard and cervical spine # injuries most common is vertical fracture through thyroid cartilage fractures of hyoid bone and cricoid in cases of strangulation cricothyroid ligament and vocal cords may be ruptured and arytenoids dislocated # Clinical features - aphonia - hoarseness - stridor - dysphagia - dysponea # Grading 1. (I) - minor laryngeal haematoma without detectable fracture 2. (II) - oedema, haeatoma, or minor mucosal disruption without exposed cartilage 3. (III) - massive oedema, tears, exposed cartilage, immoble cords # Related Questions ## blunt cerebrovascular injury - [x] 1Q: [Blunt cerebrovascular injury](x-devonthink-item://9C485EF0-3985-4EBA-B9DC-9CDF8A6E2F45?page=5) -- [Answer](x-devonthink-item://A0D348CE-FCD4-4ECD-BE21-6CA73F6DE8CD?page=9) ## carotid dissection - [x] DUPLICATE Q: [Blunt cerebrovascular injury](x-devonthink-item://9C485EF0-3985-4EBA-B9DC-9CDF8A6E2F45?page=5) -- [Answer](x-devonthink-item://A0D348CE-FCD4-4ECD-BE21-6CA73F6DE8CD?page=9) ## neck trauma - [ ] 6Q: [Neck trauma, airway compromise](x-devonthink-item://554C45F7-8661-4467-BD61-8A79B6ECABF4?page=61) -- [Answer](x-devonthink-item://554C45F7-8661-4467-BD61-8A79B6ECABF4?page=62) ## strangulation - [x] 7Q: [Strangulation](x-devonthink-item://EDAB8F09-3068-4C91-874B-E205EA17F631?page=17) -- [Answer](x-devonthink-item://E624826E-2062-41B8-96C9-ECEA0E1BDF54?page=9) ## trauma - [ ] 11Q: [Traumatic arrest](x-devonthink-item://1A14F7A1-E434-47A6-BC68-AF2DD1A7C090?page=16) -- [Answer](x-devonthink-item://736EC9CD-AC9C-4588-BA1E-F4AD190CBA47?page=38) - [ ] 12Q: [Open ankle fracture](x-devonthink-item://09493372-578D-4C97-972A-EEC617B38B53?page=8) -- [Answer](x-devonthink-item://A0D348CE-FCD4-4ECD-BE21-6CA73F6DE8CD?page=4) - [ ] 13Q: [Motorbike accident](x-devonthink-item://1A2C485F-D4AD-4821-AFF2-452BA753717F?page=46) -- [Answer](x-devonthink-item://FD716379-1A77-4B5B-B257-1154995ECA6E?page=30) -- [prop](x-devonthink-item://1A2C485F-D4AD-4821-AFF2-452BA753717F?page=65) - [ ] 14Q: [Motorcycle Vs Kangaroo](x-devonthink-item://73409C77-B2FA-4E0A-AEB3-5EB284457F0C?page=36) -- [Answer](x-devonthink-item://5A848952-80E3-4184-B553-368412A69917?page=25)