Question 2660
{"accessible":false,"alternatives":[{"id":13022,"text":"unilateral perched facet"},{"id":13023,"text":"unilateral locked facet"},{"id":13024,"text":"bilateral perched facets"},{"id":13025,"text":"bilateral locked facets"}],"archived":false,"correctAlternativeId":13025,"explanation":"\u003cp\u003e\u003cstrong\u003eBilateral locked facet\u003c/strong\u003e dislocation refers to an unstable flexion distraction type of dislocation of the cervical spine. It is characterized by complete ligamentous disruption and loss of apposition at the facet joints. \u003cbr\u003e\u003cbr\u003eThe unilateral perched facet dislocation only involves one facet joint being perched, while the other facet joint remains intact. Similarly with the unilateral locked facet dislocation, with only one being locked.\u003c/p\u003e\u003cp\u003eThe perched facets involve loss of apposition of both facet joints without complete ligamentous disruption. While this condition is unstable, it generally has a lower theoretical risk of instability compared to bilateral locked facets.\u003c/p\u003e","id":2660,"imageUrl":null,"imageAttribution":null,"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/2660","nextQuestionPath":"/articles/perched-facet-joint/questions/1822","relatedArticles":[{"id":9092,"title":"Facet dislocation","link":"/articles/facet-dislocation?lang=us"},{"id":2240,"title":"Unilateral facet dislocation","link":"/articles/unilateral-facet-dislocation?lang=us"}],"alsoUsedIn":[{"id":1731,"kind":"Course","title":"2023 Virtual Conference Private Use - page 1731","link":"https://radiopaedia.org/courses/2023-virtual-conference-private-use/pages/1731"},{"id":365,"kind":"LiveSchedule","title":"365","link":"https://radiopaedia.org/admin/live_schedules/365"},{"id":289,"kind":"LiveSchedule","title":"289","link":"https://radiopaedia.org/admin/live_schedules/289"},{"id":1497,"kind":"Course","title":"2023 Virtual Conference Private Use - page 1497","link":"https://radiopaedia.org/courses/2023-virtual-conference-private-use/pages/1497"},{"id":1497,"kind":"Course","title":"X-ray \u0026 Ultrasound Lectures - page 1497","link":"https://radiopaedia.org/courses/xray-lectures/pages/1497"}],"stem":"\u003cp\u003eWhich cervical spine dislocation has the highest theoretical risk of instability?\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/2660"}],"attemptsPercentages":[{"alternativeId":"13022","percentage":11},{"alternativeId":"13023","percentage":8},{"alternativeId":"13024","percentage":39},{"alternativeId":"13025","percentage":42}],"promptToLogin":false,"questionManager":false,"articleId":"perched-facet-joint"}