{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T20:42:17Z","timestamp":1790109737104,"version":"4.0.1"},"reference-count":29,"publisher":"MJS Publishing, Medical Journals Sweden AB","license":[{"start":{"date-parts":[[2026,2,23]],"date-time":"2026-02-23T00:00:00Z","timestamp":1771804800000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["ActaO"],"abstract":"<jats:p>Background and purpose:\u00a0Currently, there is no specific surgical treatment strategy established for spastic hip displacement in ambulatory patients with cerebral palsy. We aimed to evaluate the outcomes of our hip reconstructions, specifically designed to address hip displacement within the context of single-event multilevel surgery (SEMLS).Methods:\u00a0We conducted a retrospective study on patients with Gross Motor Function Classification System (GMFCS) levels II (n = 27) and III (n = 28). Surgical procedures involved various combinations of open or closed reduction, iliac osteotomy, proximal femoral derotational osteotomy, distal femoral derotational and shortening osteotomy, and proximal femoral varus derotational osteotomy. The overall developmental status of the hip was assessed using the Melbourne Cerebral Palsy Hip Classification Scale (MCPHCS) at a mean age of 17.3 years (SD 4.7).Results:\u00a073 hips in 55 patients were included. They underwent hip reconstruction at a mean age of 9.7 years (SD 2.6). 69 of 73 hips achieved successful outcomes. Before surgery, 51 hips had a migration percentage (MP) of 30\u201360%, 21 had 60\u2013100%, and 1 hip &gt; 100%. At the final follow-up, 12 hips were classified as MCPHCS grade 1 (MP &lt; 10%), 36 as grade 2 (10\u201315%), 21 as grade 3 (15\u201330%), 3 as grade 4 (30\u201360%), and 1 as grade 5 (60\u2013100%). 52 patients either maintained or improved their preoperative GMFCS levels.Conclusion: Within the SEMLS framework, our tailored hip reconstruction achieved satisfactory hip outcomes in 69 of 73 hips and resulted in sustained improvement in hip stability at long-term follow-up.<\/jats:p>","DOI":"10.2340\/17453674.2026.45513","type":"journal-article","created":{"date-parts":[[2026,2,23]],"date-time":"2026-02-23T14:47:23Z","timestamp":1771858043000},"source":"Crossref","is-referenced-by-count":1,"title":["Outcomes of hip reconstruction in ambulatory patients with cerebral palsy and spastic hip displacement: a retrospective study of 73 hips in 55 consecutive patients"],"prefix":"10.2340","volume":"97","author":[{"given":"Kyeong Hyeon","family":"Park","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Byoung Kyu","family":"Park","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Isaac","family":"Rhee","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8839-4870","authenticated-orcid":false,"given":"Kun Bo","family":"Park","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8063-3742","authenticated-orcid":false,"given":"Hoon","family":"Park","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yun Ho","family":"Roh","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8576-1877","authenticated-orcid":false,"given":"Hyun Woo","family":"Kim","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1183","published-online":{"date-parts":[[2026,2,23]]},"reference":[{"key":"142577","doi-asserted-by":"crossref","unstructured":"Hanna S E, Rosenbaum P L, Bartlett D J, Palisano R J, Walter S D, Avery L, et al. 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Multilevel surgery improves gait in spastic hemiplegia but does not resolve hip dysplasia. Clin Orthop Relat Res 2012; 470(5): 1294-302. doi: 10.1007\/s11999-011-2079-4.","DOI":"10.1007\/s11999-011-2079-4"},{"key":"142581","doi-asserted-by":"crossref","unstructured":"Miller S, Leveille L, Juricic M, Mulpuri K. Late hip displacement identified in children at Gross Motor Function Classification System II and III with asymmetric diplegia and fixed pelvic obliquity. J Am Acad Orthop Surg Glob Res Rev 2022; 6(9)e20.00094. doi: 10.5435\/JAAOSGlobal-D-20-00094.","DOI":"10.5435\/JAAOSGlobal-D-20-00094"},{"key":"142582","doi-asserted-by":"crossref","unstructured":"Chang F M, Ma J, Pan Z, Ingram J D, Novais E N. Acetabular remodeling after a varus derotational osteotomy in children with cerebral palsy. 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Long-term outcomes of hip reconstruction surgery in children with GMFCS III diplegic cerebral palsy. Orthop Traumatol Surg Res 2023; 109(3): 103344. doi: 10.1016\/j.otsr.2022.103344.","DOI":"10.1016\/j.otsr.2022.103344"},{"key":"142586","doi-asserted-by":"crossref","unstructured":"Metaxiotis D, Accles W, Siebel A, Doederlein L. Hip deformities in walking patients with cerebral palsy. Gait Posture 2000; 11(2): 86-91. doi: 10.1016\/s0966-6362(00)00043-6.","DOI":"10.1016\/S0966-6362(00)00043-6"},{"key":"142587","unstructured":"Chambers H G. Identification and treatment of gait problems in cerebral palsy. 2nd ed. London: Mac Keith Press; 2009."},{"key":"142588","doi-asserted-by":"crossref","unstructured":"Thomason P, Graham K, Ye K, O\u2019Donnell A, Kulkarni V, Davids J R, et al. Knee surveillance for ambulant children with cerebral palsy. 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