{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T05:39:49Z","timestamp":1791265189105,"version":"4.1.0"},"reference-count":19,"publisher":"Georg Thieme Verlag KG","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Z Orthop Unfall"],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Intertrochanteric rotational osteotomy (ITO) is a joint-preserving option in selected patients with symptomatic femoral torsional abnormalities. Functional results beyond 15 years are scarce. This study describes the long-term functional and patient-reported status after isolated ITO; it is not designed to demonstrate efficacy or superiority.<\/jats:p>\n                  <jats:p>A monocentric retrospective cohort of 60 patients was evaluated 16.6 years after isolated rotational or derotational osteotomy. Functional outcomes were assessed using HHS, WOMAC, EQ-5D-5L, and clinical examination. Exploratory multivariable regression was used to assess potential associations with functional and patient-reported outcome parameters.<\/jats:p>\n                  <jats:p>More than 75% of patients achieved good to excellent outcomes (mean HHS 85\u00a0\u00b1\u00a015). Mean WOMAC score was 11\u00a0\u00b1\u00a013, and mean EQ-5D-5L index was 0.843\u00a0\u00b1\u00a00.189. No conversion to total hip arthroplasty was observed during follow-up. Female sex was associated with higher WOMAC scores and lower EQ-5D-5L values.<\/jats:p>\n                  <jats:p>In this retrospective single-arm cohort, isolated intertrochanteric rotational or derotational osteotomy was accompanied by stable functional and patient-reported values over a mean of 16,6 years, with no conversion to total hip arthroplasty during follow-up. Sex and the documented rotational correction angle were associated with selected patient-reported outcomes. Because of the retrospective design, the absence of a control group, the absence of preoperative score values, and the absence of standardised radiological torsion and follow-up imaging, the data do not support any statement on efficacy, on prevention of degenerative change, or on superiority over alternative approaches. These results describe the long-term functional status of a clinically documented cohort.<\/jats:p>","DOI":"10.1055\/a-2902-2209","type":"journal-article","created":{"date-parts":[[2026,7,16]],"date-time":"2026-07-16T23:06:42Z","timestamp":1784243202000},"source":"Crossref","is-referenced-by-count":1,"title":["Long-term Clinical Outcomes after Isolated Intertrochanteric Rotational Osteotomy for Pathological Femoral Torsion: A 17-year Follow-up Study"],"prefix":"10.1055","author":[{"ORCID":"https:\/\/orcid.org\/0009-0000-2891-454X","authenticated-orcid":false,"given":"Ioannis","family":"Papadimitriou","sequence":"additional","affiliation":[{"name":"Klinikum Dortmund gGmbH, Klinikzentrum Mitte, Deutschland","place":["Dortmund"],"department":["Klinik f\u00fcr Orthop\u00e4die"]},{"name":"Universit\u00e4t Witten\/Herdecke, Fakult\u00e4t f\u00fcr Gesundheit, Deutschland","place":["Witten"],"department":["Department f\u00fcr Humanmedizin, Lehrstuhl f\u00fcr Orthop\u00e4die"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0006-3085-6848","authenticated-orcid":false,"given":"Pavlos","family":"Sampatakakis","sequence":"additional","affiliation":[{"name":"Christliches Klinikum Unna West, Deutschland","place":["Unna"],"department":["Klinik f\u00fcr Orthop\u00e4die"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maria Magdalini","family":"Konsoula","sequence":"additional","affiliation":[{"name":"HELIOS Klinikum Krefeld, Deutschland","place":["Krefeld"],"department":["Plastische Chirurgie"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dimitrios","family":"Mouselimis","sequence":"additional","affiliation":[{"name":"Klinikum Dortmund gGmbH, Klinikzentrum Mitte, Deutschland","place":["Dortmund"],"department":["Klinik f\u00fcr Orthop\u00e4die"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Steffen","family":"Hortmann","sequence":"additional","affiliation":[{"name":"Klinikum Dortmund gGmbH, Klinikzentrum Mitte, Deutschland","place":["Dortmund"],"department":["Klinik f\u00fcr Orthop\u00e4die"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Konstantinos","family":"Papadopoulos","sequence":"additional","affiliation":[{"name":"Klinikum Dortmund gGmbH, Klinikzentrum Mitte, Deutschland","place":["Dortmund"],"department":["Klinik f\u00fcr Orthop\u00e4die"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christian","family":"L\u00fcring","sequence":"additional","affiliation":[{"name":"Klinikum Dortmund gGmbH, Klinikzentrum Mitte, Deutschland","place":["Dortmund"],"department":["Klinik f\u00fcr Orthop\u00e4die"]},{"name":"Universit\u00e4t Witten\/Herdecke, Fakult\u00e4t f\u00fcr Gesundheit, Deutschland","place":["Witten"],"department":["Department f\u00fcr Humanmedizin, Lehrstuhl f\u00fcr Orthop\u00e4die"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"194","published-online":{"date-parts":[[2026,7,16]]},"reference":[{"key":"ref1","first-page":"5","article-title":"Verlauf der idiopathischen Coxa antetorta. a) Spontanverlauf der idiopathischen Coxa antetorta","volume":"8","author":"L Jani","year":"1979","journal-title":"Orthopade"},{"key":"ref2","doi-asserted-by":"publisher","first-page":"485","DOI":"10.1007\/s00132-007-1088-1","article-title":"Kindliche Beinachsen: Was ist pathologisch?","volume":"36","author":"B Westhoff","year":"2007","journal-title":"Orthopade"},{"key":"ref3","doi-asserted-by":"publisher","first-page":"1501","DOI":"10.1007\/s00256-013-1687-3","article-title":"The physiological range of femoral antetorsion","volume":"42","author":"S Decker","year":"2013","journal-title":"Skeletal 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