Question 2464
{"accessible":false,"alternatives":[{"id":12106,"text":"left L2 nerve root"},{"id":12107,"text":"left L3 nerve root"},{"id":12108,"text":"left L4 nerve root"},{"id":12109,"text":"no nerve root passes in this region"}],"archived":false,"correctAlternativeId":12108,"explanation":"\u003cp\u003eSubarticular zone protrusions can impinge the traversing nerve to the level below. Therefore at L3/4 it is the left L4 nerve root that is most likely to be affected.\u0026nbsp;\u0026nbsp;\u003c/p\u003e\u003cp\u003eThis is in distinction to foraminal and extra-foraminal zone protrusions which can impact nerves exiting at the corresponding disc level itself.\u0026nbsp;\u003c/p\u003e","id":2464,"imageUrl":null,"imageAttribution":null,"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/2466","nextQuestionPath":"/articles/disc-protrusion/questions/1982","relatedArticles":[{"id":6191,"title":"Disc herniation","link":"/articles/disc-herniation?lang=us"},{"id":88390,"title":"Subarticular zone stenosis","link":"/articles/subarticular-zone-stenosis?lang=us"}],"alsoUsedIn":[{"id":1342,"kind":"Course","title":"2022 Virtual Conference Private Use - page 1342","link":"https://radiopaedia.org/courses/2022-virtual-conference-private-use/pages/1342"},{"id":1200,"kind":"Course","title":"2022 Virtual Conference Private Use - page 1200","link":"https://radiopaedia.org/courses/2022-virtual-conference-private-use/pages/1200"},{"id":248,"kind":"LiveSchedule","title":"248","link":"https://radiopaedia.org/admin/live_schedules/248"},{"id":152,"kind":"LiveSchedule","title":"152","link":"https://radiopaedia.org/admin/live_schedules/152"},{"id":1268,"kind":"Course","title":"2022 Virtual Conference Private Use - page 1268","link":"https://radiopaedia.org/courses/2022-virtual-conference-private-use/pages/1268"},{"id":1268,"kind":"Course","title":"CT \u0026 MRI Lectures - page 1268","link":"https://radiopaedia.org/courses/ct-mri-lectures/pages/1268"}],"stem":"\u003cp\u003eA left subarticular zone intervertebral disc protrusion at L3/4 is most likely to impinge which nerve?\u0026nbsp;\u0026nbsp;\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/2464"}],"attemptsPercentages":[{"alternativeId":"12106","percentage":6},{"alternativeId":"12108","percentage":70},{"alternativeId":"12107","percentage":23},{"alternativeId":"12109","percentage":2}],"promptToLogin":false,"questionManager":false,"articleId":"disc-protrusion"}