{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,30]],"date-time":"2025-10-30T11:08:59Z","timestamp":1761822539085},"reference-count":0,"publisher":"British Editorial Society of Bone & Joint Surgery","issue":"1","license":[{"start":{"date-parts":[[2003,1,1]],"date-time":"2003-01-01T00:00:00Z","timestamp":1041379200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/online.boneandjoint.org.uk\/TDM"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["The Journal of Bone and Joint Surgery. British volume"],"published-print":{"date-parts":[[2003,1]]},"abstract":"<jats:p> We studied radiographs of 125 children (105 boys, 20 girls) with unilateral Legg-Calv\u00e9-Perthes\u2019 disease to examine the epiphyseal development of the femoral head in the contralateral (unaffected) hip. The epiphyseal height (EH) and width (EW) of the unaffected hip were measured on the initial anteroposterior pelvic radiograph. <\/jats:p><jats:p> In 109 of the patients (87.2%) the EH was below the mean for normal Japanese children and a significantly small EH (below \u22122 sds) was observed in 23 patients (18.4%). By contrast, the EW of most patients (95.2%) lay within \u00b1 2 SDs of normal values except for six with a significantly small EW. A strong positive linear correlation (R = 0.87) was observed in the EH:EW ratio in the patients. A smaller EH than expected for EW in our series indicated epiphyseal flattening of the femoral head in Legg-Calv\u00e9-Perthes\u2019 disease. <\/jats:p><jats:p> Our findings support the hypothesis that a delay in endochondral ossification in the proximal capital femoral epiphysis may be associated with the onset of Perthes\u2019 disease. <\/jats:p>","DOI":"10.1302\/0301-620x.85b1.13426","type":"journal-article","created":{"date-parts":[[2003,3,28]],"date-time":"2003-03-28T14:04:27Z","timestamp":1048860267000},"page":"121-124","source":"Crossref","is-referenced-by-count":17,"title":["Delayed ossification of the proximal capital femoral epiphysis in Legg-Calv\u00e9-Perthes\u2019 disease"],"prefix":"10.1302","volume":"85-B","author":[{"given":"H.","family":"Kitoh","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Surgery, Nagoya University School of Medicine, 65 Tsurumai-Cho, Showa-ku, Nagoya, Aichi 466\u20138550, Japan."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"T.","family":"Kitakoji","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Nagoya University School of Medicine, 65 Tsurumai-Cho, Showa-ku, Nagoya, Aichi 466\u20138550, Japan."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M.","family":"Katoh","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Nagoya University School of Medicine, 65 Tsurumai-Cho, Showa-ku, Nagoya, Aichi 466\u20138550, Japan."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Y.","family":"Takamine","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Nagoya University School of Medicine, 65 Tsurumai-Cho, Showa-ku, Nagoya, Aichi 466\u20138550, Japan."}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"42","container-title":["The Journal of Bone and Joint Surgery. British volume"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/online.boneandjoint.org.uk\/doi\/pdf\/10.1302\/0301-620X.85B1.13426","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/online.boneandjoint.org.uk\/doi\/pdf\/10.1302\/0301-620X.85B1.13426","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2021,8,16]],"date-time":"2021-08-16T20:14:36Z","timestamp":1629144876000},"score":1,"resource":{"primary":{"URL":"https:\/\/online.boneandjoint.org.uk\/doi\/10.1302\/0301-620X.85B1.13426"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2003,1]]},"references-count":0,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2003,1]]}},"alternative-id":["10.1302\/0301-620X.85B1.13426"],"URL":"https:\/\/doi.org\/10.1302\/0301-620x.85b1.13426","relation":{},"ISSN":["0301-620X","2044-5377"],"issn-type":[{"value":"0301-620X","type":"print"},{"value":"2044-5377","type":"electronic"}],"subject":[],"published":{"date-parts":[[2003,1]]}}}