{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,2,21]],"date-time":"2025-02-21T23:16:59Z","timestamp":1740179819774,"version":"3.37.3"},"reference-count":11,"publisher":"Oxford University Press (OUP)","issue":"2","license":[{"start":{"date-parts":[[2024,5,21]],"date-time":"2024-05-21T00:00:00Z","timestamp":1716249600000},"content-version":"vor","delay-in-days":17,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2024,7,8]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n               <jats:p>Osteogenesis imperfecta (OI) is a heterogeneous disorder characterised by bone fragility. Herein, we report a case of OI diagnosed after subchondral insufficiency fracture (SIF) of bilateral femoral heads. A 37-year-old woman was referred to Saitama Medical University Hospital due to left hip pain without any trauma that lasted for 2\u2009months. She was subsequently diagnosed with SIF of the left femoral head. After 3\u2009months, she further developed SIF of the right hip without any trauma. Magnetic resonance imaging of the bilateral hips showed linear low-signal changes of the subchondral bone and bone marrow oedema of the femoral head on T2-weighted coronal and sagittal images, diagnosing of both SIFs. The bone mineral density was 0.851\u2009g\/cm2 (T-score, \u22121.3) at the lumbar spine, 0.578\u2009g\/cm2 (T-score, \u22121.9) at the right femoral neck, and 0.582\u2009g\/cm2 (T-score, \u22121.9) at the left femoral neck. Considering that the patient had multiple histories of fracture, blue sclera, and mild bilateral sensorineural hearing loss, she satisfied the diagnostic criteria for OI. Genetic testing revealed a mutation in COL1A1 (NM_000088.3, c.3806G&amp;gt;A: p. Trp1269*). After 7\u2009months of conservative therapy, her symptoms improved. After 4\u2009years, both hips were pain-free with no evidence of osteoarthritis progression. OI can result in insufficiency fractures due to bone fragility in adolescence and adulthood or later, and none of the cases of OI, except for the current case, were diagnosed as a result of bilateral SIF.<\/jats:p>","DOI":"10.1093\/mrcr\/rxae021","type":"journal-article","created":{"date-parts":[[2024,5,21]],"date-time":"2024-05-21T13:58:11Z","timestamp":1716299891000},"page":"386-390","source":"Crossref","is-referenced-by-count":0,"title":["A case of osteogenesis imperfecta diagnosed after subchondral insufficiency fracture of bilateral femoral heads"],"prefix":"10.1093","volume":"8","author":[{"given":"Nobuhiko","family":"Okada","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Surgery, Saitama Medical University , Saitama, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0009-9868-8248","authenticated-orcid":false,"given":"Keisuke","family":"Watarai","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Saitama Medical University , Saitama, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kota","family":"Ozawa","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Saitama Medical University , Saitama, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tsuyoshi","family":"Miyajima","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Saitama Medical University , Saitama, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Akira","family":"Ohtake","sequence":"additional","affiliation":[{"name":"Department of Clinical Genomics, Saitama Medical University , Saitama, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yuho","family":"Kadono","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Saitama Medical University , Saitama, 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