Question 1810
{"accessible":true,"alternatives":[{"id":8992,"text":"abnormal atlantodental interval during flexion AND fractured posterior arch of C1"},{"id":8993,"text":"abnormal atlantodental interval during flexion AND incomplete arcuate foramen of C1"},{"id":8994,"text":"normal atlantodental interval during flexion AND fractured posterior arch of C1"},{"id":8995,"text":"normal atlantodental interval during flexion AND incomplete arcuate foramen of C1"}],"archived":false,"correctAlternativeId":8995,"explanation":"\u003cp\u003eThe \u003ca href=\"/articles/atlantodental-interval\" title=\"Atlantodental interval\"\u003eatlantodental interval\u003c/a\u003e remain less than 3 mm during flexion which indicates normal stability - the V shape to the interval is also normal. The posterior arch of C1 appears intact however there is an incidental incomplete \u003ca href=\"/articles/arcuate-foramen\" title=\"Arcuate foramen\"\u003earcuate foramen\u003c/a\u003e (normal variant).\u003c/p\u003e","id":1810,"imageUrl":"https://prod-images-static.radiopaedia.org/multiple_choice_questions/298/flexion_extension.001_big_gallery.jpeg","imageAttribution":{"kind":"case","rID":37967},"imageAttributionCaseInfo":{"title":"Normal flexion and extension cervical spine x-rays","contributor_name":"Frank Gaillard","contributor_param":"frank","case_rid":37967,"case_param":"normal-flexion-and-extension-cervical-spine-x-rays"},"firstQuestionPath":"/questions/1813","nextQuestionPath":null,"relatedArticles":[{"id":942,"title":"Atlanto-axial subluxation","link":"/articles/atlanto-axial-subluxation?lang=us"},{"id":40483,"title":"Atlantodental interval","link":"/articles/atlantodental-interval?lang=us"}],"alsoUsedIn":[{"id":804,"kind":"Course","title":"X-ray Interpretation: Cervical Spine - page 804","link":"https://radiopaedia.org/courses/x-ray-interpretation-cervical-spine/pages/804"},{"id":804,"kind":"Course","title":"Emergency Radiology Course - Melbourne - page 804","link":"https://radiopaedia.org/courses/emergency-radiology-course-melbourne-2022/pages/804"},{"id":804,"kind":"Course","title":"Emergency Radiology Course - Brisbane - page 804","link":"https://radiopaedia.org/courses/emergency-radiology-course-brisbane-2022/pages/804"}],"stem":"\u003cp\u003eFlexion and extension radiographs performed in a young adult female with neck pain. Which of the following best describes the findings?\u003c/p\u003e","menuLinks":[{"text":"Report problem with question","url":"https://docs.google.com/forms/d/e/1FAIpQLSfO3soWYhOjJ7yErSysyCe5V4A1CqW7WK3rDA7MtAkecMGqNw/viewform?entry.1624461248\u0026entry.553583435=https://radiopaedia.org/questions/1810"}],"attemptsPercentages":[{"alternativeId":"8995","percentage":75},{"alternativeId":"8992","percentage":5},{"alternativeId":"8994","percentage":8},{"alternativeId":"8993","percentage":12}],"promptToLogin":false,"questionManager":false,"articleId":"arcuate-foramen"}