{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,20]],"date-time":"2026-07-20T19:22:05Z","timestamp":1784575325983,"version":"3.55.0"},"reference-count":32,"publisher":"SAGE Publications","issue":"1","license":[{"start":{"date-parts":[[2026,1,7]],"date-time":"2026-01-07T00:00:00Z","timestamp":1767744000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"},{"start":{"date-parts":[[2026,1,7]],"date-time":"2026-01-07T00:00:00Z","timestamp":1767744000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Journal of Children's Orthopaedics"],"published-print":{"date-parts":[[2026,2]]},"abstract":"<jats:sec>\n                    <jats:title>Purpose:<\/jats:title>\n                    <jats:p>To identify clinical and radiographic risk factors associated with hip redislocation in children with cerebral palsy (CP) who underwent surgical treatment for hip dislocation.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>This multicenter retrospective study included children with CP who underwent reconstructive osteotomy for hip dislocation and were followed until triradiate cartilage closure. Demographic, clinical, and radiographic variables were evaluated. Univariate and multivariate logistic regression analyses were performed to identify independent risk factors for redislocation. Additionally, a classification and regression tree (CART) model was developed to stratify redislocation risk.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>\n                      Hip redislocation occurred in 25 of 115 hips (21.7%). Redislocation was significantly more frequent in hips treated with femoral osteotomy alone (40%) compared to combined femoral and pelvic osteotomies (16.7%), (\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      \u2009=\u20090.026). Multivariate analysis identified younger age at surgery (Odds ratio (OR)\u2009=\u20090.981,\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      \u2009=\u20090.010), higher postoperative Sharp\u2019s angle (OR\u2009=\u20091.082,\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      \u2009=\u20090.034), and lower postoperative Mose hip ratio (MHR) (OR\u2009=\u20090.007,\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      \u2009=\u20090.033) as independent predictors of redislocation. Radiographic ratios, including medial joint space to cranial joint space (MJS\/CJS) and MJS to maximum capital femoral epiphysis diameter (MJS\/MCFED), were also significantly higher in redislocated hips. The CART model classified patients into high- and low-risk groups based on surgical age \u226476\u2009months, postoperative Sharp\u2019s angle \u226548\u00b0, and MHR\u2009&lt;\u20090.69.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions:<\/jats:title>\n                    <jats:p>Younger surgical age, insufficient correction as indicated by a higher postoperative Sharp angle and lower MHR were independently associated with hip redislocation in CP patients undergoing surgery. MJS\/CJS and MJS\/MCFED ratios were also associated with redislocation, indicating incomplete reduction.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Significance of study:<\/jats:title>\n                    <jats:p>This study presents a clinically applicable decision-tree model to predict redislocation risk after CP hip reconstruction using radiographic parameters.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Level of evidence:<\/jats:title>\n                    <jats:p>Level III, multicenter retrospective study.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/18632521251411141","type":"journal-article","created":{"date-parts":[[2026,1,7]],"date-time":"2026-01-07T17:26:03Z","timestamp":1767806763000},"page":"3-12","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":2,"title":["Risk factors for hip redislocation in surgically treated children with cerebral palsy: A multicenter study with follow-up until skeletal maturity"],"prefix":"10.1177","volume":"20","author":[{"ORCID":"https:\/\/orcid.org\/0009-0003-9924-336X","authenticated-orcid":false,"given":"Rafik","family":"Ramazanov","sequence":"first","affiliation":[{"name":"Children\u2019s Ortho and Spine Center, Ankara, Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0502-3351","authenticated-orcid":false,"given":"Ula\u015f can","family":"Kola\u00e7","sequence":"additional","affiliation":[{"name":"Department of Orthopedics and Traumatology, Hacettepe University, Ankara, Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Evren","family":"Akpinar","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics Surgery and Traumatology, Health Science University, Baltalimani Bone Diseases Education and Research Hospital, Istanbul, Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sadettin","family":"Ciftci","sequence":"additional","affiliation":[{"name":"Department of Orthopedics and Traumatology, Selcuk University Faculty of Medicine, Konya, Turkiye"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guney","family":"Yilmaz","sequence":"additional","affiliation":[{"name":"Department of Orthopedics and Traumatology, Hacettepe University, Ankara, Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mehmet Salih","family":"Soylemez","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics and Traumatology, Umraniye Training and Research Hospital, Istanbul, Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Murat Celal","family":"Sozbilen","sequence":"additional","affiliation":[{"name":"Department of Orthopedics and Traumatology, Ege University School of Medicine, \u0130zmir, Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yavuz","family":"Saglam","sequence":"additional","affiliation":[{"name":"Istanbul Faculty of Medicine, Department of Orthopaedics and Traumatology, Istanbul University, Istanbul, Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hakan","family":"Senaran","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics and Traumatology, School of Medicine, Bezmialem Vakif University, \u0130stanbul, Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Abdullah","family":"Eren","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics and Traumatology, \u0130stanbul Bilim University, \u0130stanbul, Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mehmet Ali","family":"Talmac","sequence":"additional","affiliation":[{"name":"Department of Orthopedics and Traumatology, University of Health Sciences, Sisli Hamidiye Etfal Training 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