{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,21]],"date-time":"2025-10-21T15:01:53Z","timestamp":1761058913736,"version":"3.41.0"},"reference-count":0,"publisher":"SLACK, Inc.","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Orthopedics"],"published-print":{"date-parts":[[2008,4]]},"abstract":"<jats:p>Subchondral insufficiency fracture of the femoral head is a rarely reported lesion, often confused with osteonecrosis, transient osteoporosis of the hip, or rapidly destructive coxarthrosis. However, almost all the previous reports about this lesion have documented unilateral cases.<\/jats:p>\n          <jats:p>We report the clinical and histological features of bilateral subchondral insufficiency fracture of the femoral head in a 68-year-old woman. She reported a sudden pain in her left hip without apparent trauma. An anteroposterior radiograph 2 weeks after the onset of pain in the left hip shows a subchondral collapse of the femoral head. The entire femoral head was depicted as a low intensity area on a T1-weighted image, and there was a subchondral linear pattern of low signal intensity with a convex shape to the articular surface. On T2-weighted image, the entire femoral head was depicted as a high intensity area, and on T1-weighted image, a linear low signal intensity pattern was noted.<\/jats:p>\n          <jats:p>The patient underwent hemiarthroplasty. Cross-section of the femoral head showed a fracture line identified in the subchondral area. Although the patient's postoperative course was favorable, she had idiopathic pain in the right hip. A lateral radiograph 3 weeks after the onset of pain in the right hip shows irregularity at the surface of the femoral head. Cross-section of the right femoral head showed a concave fracture line in the subchondral bone. Based on these findings, bilateral subchondral insufficiency fracture of the femoral head was diagnosed.<\/jats:p>","DOI":"10.3928\/01477447-20080401-36","type":"journal-article","created":{"date-parts":[[2009,3,12]],"date-time":"2009-03-12T21:38:57Z","timestamp":1236893937000},"page":"399-399","source":"Crossref","is-referenced-by-count":9,"title":["Bilateral Subchondral Insufficiency Fracture of the Femoral Head"],"prefix":"10.3928","volume":"31","author":[{"given":"Akihiro","family":"Sudo","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Masahiro","family":"Hasegawa","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ko","family":"Kato","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Atsumasa","family":"Uchida","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"2308","container-title":["Orthopedics"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.healio.com\/doiresolver?doi=10.3928\/01477447-20080401-36","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,7,2]],"date-time":"2025-07-02T14:43:49Z","timestamp":1751467429000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.healio.com\/doi\/10.3928\/01477447-20080401-36"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2008,4]]},"references-count":0,"journal-issue":{"issue":"4","published-print":{"date-parts":[[2008,4]]}},"alternative-id":["10.3928\/01477447-20080401-36"],"URL":"https:\/\/doi.org\/10.3928\/01477447-20080401-36","relation":{},"ISSN":["0147-7447","1938-2367"],"issn-type":[{"type":"print","value":"0147-7447"},{"type":"electronic","value":"1938-2367"}],"subject":[],"published":{"date-parts":[[2008,4]]}}}