Question 1237
{"accessible":false,"alternatives":[{"id":6200,"text":"associated with HLA B27 phenotype"},{"id":6201,"text":"higher incidence during third trimester of pregnancy"},{"id":6202,"text":"plain radiographs always reveal osteopenia eventually"},{"id":6203,"text":"subchondral linear signal abnormality reflects osteonecrosis"},{"id":6204,"text":"women are more affected than men"}],"archived":false,"correctAlternativeId":6201,"explanation":"\u003cp\u003e\u003ca href=\"/articles/transient-osteoporosis-of-the-hip-1\"\u003eTransient osteoporosis\u0026nbsp;of the hip\u003c/a\u003e\u0026nbsp;is idiopathic, and does not have association with HLA B27. There is a higher incidence during the third trimester of pregnancy, although overall\u0026nbsp;it is more common in middle aged men (3:1 ratio).\u0026nbsp;\u003c/p\u003e\u003cp\u003e\u003ca title=\"Osteopenia\" class=\"internal\" href=\"/articles/osteopenia\"\u003eOsteopenia\u003c/a\u003e is usually not detectable for 4-8 weeks, and in\u0026nbsp;some cases may never be documented (when it may referred to as transient bone marrow edema syndrome).\u003c/p\u003e\u003cp\u003eTransient osteoporosis is a distinct clinical entity from \u003ca title=\"Avascular necrosis of the hip\" class=\"internal\" href=\"/articles/avascular-necrosis-of-the-hip\"\u003eavascular necrosis\u003c/a\u003e and the demineralization may result in subchondral insufficiency fractures in a subset of patients which would explain any\u0026nbsp;subchondral linear\u0026nbsp;signal.\u003c/p\u003e","id":1237,"imageUrl":null,"imageAttribution":null,"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/1237","nextQuestionPath":null,"relatedArticles":[],"alsoUsedIn":[{"id":428,"kind":"Course","title":"Radiology Review Course - Melbourne - page 428","link":"https://radiopaedia.org/courses/radiology-review-course-melbourne-2019/pages/428"},{"id":428,"kind":"Course","title":"Radiology Review Course - Melbourne - page 428","link":"https://radiopaedia.org/courses/radiology-review-course-melbourne-2020/pages/428"},{"id":428,"kind":"Course","title":"Radiology Review Course - page 428","link":"https://radiopaedia.org/courses/radiology-review-course-online/pages/428"},{"id":638,"kind":"Course","title":"Radiopaedia 2020 - Lectures Only - page 638","link":"https://radiopaedia.org/courses/radiopaedia-2020-exclusive/pages/638"},{"id":638,"kind":"Course","title":"2020 Virtual Conference Private Use - page 638","link":"https://radiopaedia.org/courses/2020-virtual-conference-private-use/pages/638"}],"stem":"\u003cp\u003eWhich is true regarding transient osteoporosis of the hip?\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/1237"}],"attemptsPercentages":[{"alternativeId":"6204","percentage":15},{"alternativeId":"6200","percentage":3},{"alternativeId":"6201","percentage":64},{"alternativeId":"6203","percentage":10},{"alternativeId":"6202","percentage":8}],"promptToLogin":false,"questionManager":false,"articleId":"transient-osteoporosis-of-the-hip"}