{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,21]],"date-time":"2026-10-21T15:45:04Z","timestamp":1792597504783,"version":"4.5.0"},"reference-count":8,"publisher":"Oxford University Press (OUP)","issue":"7","license":[{"start":{"date-parts":[[2026,7,14]],"date-time":"2026-07-14T00:00:00Z","timestamp":1783987200000},"content-version":"vor","delay-in-days":13,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,7,4]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Pediatric traumatic hip dislocation is rare and may be accompanied by structural injuries requiring surgical treatment. We report the case of traumatic posterior hip dislocation sustained by a 9-year-old boy while playing rugby. Closed reduction was initially performed at a local hospital, but redislocation occurred 3\u00a0days later. Computed tomography demonstrated a small bony fragment adjacent to the posterior acetabular rim consistent with the acetabular fleck sign. Magnetic resonance imaging revealed an osteochondral fragment continuous with the labrum. Open reduction using the Kocher\u2013Langenbeck approach confirmed posterior osteochondral avulsion, which was repaired with soft anchors. At the 3-year follow-up, the patient was pain-free, had a normal gait, and showed no evidence of femoral head osteonecrosis. This case suggests that the acetabular fleck sign may indicate posterior labral osteochondral avulsion in pediatric traumatic hip dislocation, and that early recognition may promote timely surgical intervention and prevent recurrent instability.<\/jats:p>","DOI":"10.1093\/jscr\/rjag579","type":"journal-article","created":{"date-parts":[[2026,7,14]],"date-time":"2026-07-14T10:50:28Z","timestamp":1784026228000},"source":"Crossref","is-referenced-by-count":1,"title":["Traumatic hip dislocation in a child with an acetabular fleck sign indicating posterior osteochondral avulsion: a case report"],"prefix":"10.1093","volume":"2026","author":[{"ORCID":"https:\/\/orcid.org\/0009-0007-3614-7556","authenticated-orcid":false,"given":"Aoi","family":"Kudo","sequence":"first","affiliation":[{"name":"Department of Orthopedic Surgery, Hirosaki University Graduate School of Medicine , 5 Zaifu-cho, Hirosaki City, Aomori 036-8562 ,","place":["Japan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kazuki","family":"Oishi","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, Hirosaki University Graduate School of Medicine , 5 Zaifu-cho, Hirosaki City, Aomori 036-8562 ,","place":["Japan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Seiya","family":"Ota","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, Hirosaki University Graduate School of Medicine , 5 Zaifu-cho, Hirosaki City, Aomori 036-8562 ,","place":["Japan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Masayuki","family":"Ichinohe","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, Hachinohe City Hospital , 3-1-1 Tamukai, Hachinohe City, Aomori 031-8555 ,","place":["Japan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuji","family":"Yamamoto","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, Hakodate Municipal Hospital , 1-10-1 Minato-cho, Hakodate City, Hokkaido 041-8680 ,","place":["Japan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2180-7922","authenticated-orcid":false,"given":"Yasuyuki","family":"Ishibashi","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, Hirosaki University Graduate School of Medicine , 5 Zaifu-cho, Hirosaki City, Aomori 036-8562 ,","place":["Japan"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2026,7,13]]},"reference":[{"key":"2026071406502482400_ref1","doi-asserted-by":"publisher","first-page":"114","DOI":"10.1007\/BF00393886","article-title":"Traumatic dislocation of the hip in young children","volume":"110","author":"Rieger","year":"1991","journal-title":"Arch Orthop Trauma Surg"},{"key":"2026071406502482400_ref2","doi-asserted-by":"publisher","first-page":"728","DOI":"10.1007\/s00256-004-0800-z","article-title":"Entrapment of the acetabular labrum following reduction of traumatic hip dislocation in a child","volume":"33","author":"Chun","year":"2004","journal-title":"Skeletal Radiol"},{"key":"2026071406502482400_ref3","first-page":"290","article-title":"Surgical images: musculoskeletal. Imaging in musculoskeletal trauma: the value of magnetic resonance imaging for traumatic pediatric hip dislocations","volume":"47","author":"Elder","year":"2004","journal-title":"Can J Surg"},{"key":"2026071406502482400_ref4","doi-asserted-by":"publisher","first-page":"602","DOI":"10.1097\/BPO.0000000000000507","article-title":"Traumatic, posterior pediatric hip dislocations with associated posterior labrum osteochondral avulsion: recognizing the acetabular \"fleck\" sign","volume":"36","author":"Blanchard","year":"2016","journal-title":"J Pediatr Orthop"},{"key":"2026071406502482400_ref5","doi-asserted-by":"publisher","first-page":"e433","DOI":"10.1097\/BPO.0000000000002657","article-title":"Acetabular ``fleck'' sign: outcomes of surgical repair","volume":"44","author":"Chen","year":"2024","journal-title":"J Pediatr Orthop"},{"key":"2026071406502482400_ref6","doi-asserted-by":"publisher","first-page":"9","DOI":"10.1097\/01.blo.0000152366.58660.ea","article-title":"Neglected traumatic hip dislocation in children","volume":"431","author":"Kumar","year":"2005","journal-title":"Clin Orthop Relat Res"},{"key":"2026071406502482400_ref7","doi-asserted-by":"publisher","first-page":"437","DOI":"10.5505\/tjtes.2014.52822","article-title":"Treatment and results in pediatric traumatic hip dislocation: case series and review of the literature","volume":"20","author":"Ba\u015faran","year":"2014","journal-title":"Ulus Travma Acil Cerrahi Derg"},{"key":"2026071406502482400_ref8","doi-asserted-by":"publisher","first-page":"435","DOI":"10.1007\/s00247-001-0634-y","article-title":"MRI assessment of the posterior acetabular wall fracture in traumatic dislocation of the hip in children","volume":"32","author":"Rubel","year":"2002","journal-title":"Pediatr Radiol"}],"container-title":["Journal of Surgical Case Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/academic.oup.com\/jscr\/article-pdf\/2026\/7\/rjag579\/68769715\/rjag579.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/academic.oup.com\/jscr\/article-pdf\/2026\/7\/rjag579\/68769715\/rjag579.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,7,14]],"date-time":"2026-07-14T10:50:28Z","timestamp":1784026228000},"score":1,"resource":{"primary":{"URL":"https:\/\/academic.oup.com\/jscr\/article\/doi\/10.1093\/jscr\/rjag579\/8733815"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,7]]},"references-count":8,"journal-issue":{"issue":"7","published-print":{"date-parts":[[2026,7,4]]}},"URL":"https:\/\/doi.org\/10.1093\/jscr\/rjag579","relation":{},"ISSN":["2042-8812"],"issn-type":[{"value":"2042-8812","type":"electronic"}],"subject":[],"published-other":{"date-parts":[[2026,7]]},"published":{"date-parts":[[2026,7]]},"article-number":"rjag579"}}