{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,2]],"date-time":"2026-07-02T19:31:11Z","timestamp":1783020671660,"version":"3.54.6"},"reference-count":29,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[2026,6,16]],"date-time":"2026-06-16T00:00:00Z","timestamp":1781568000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,6,16]],"date-time":"2026-06-16T00:00:00Z","timestamp":1781568000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["esskajournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Knee surg. sports traumatol. arthrosc."],"published-print":{"date-parts":[[2026,7]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>To evaluate spinopelvic mobility and rotational morphology in patients with femoroacetabular impingement (FAI)\u2010like hip pain without classical radiographic or magnetic resonance imaging (MRI) findings.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>This retrospective comparative study included 54 patients with FAI\u2010like hip pain without classical imaging findings (alpha angle &lt;55\u00b0, lateral centre\u2010edge angle 20\u00b0\u201340\u00b0 and no significant labral\/chondral pathology on conventional MRI) and 36 matched controls. Spinopelvic parameters (pelvic incidence, pelvic tilt [PT], sacral slope (SS) and anterior pelvic plane [APP]\u2010based PT) were measured on standing and sitting lateral radiographs. Spinopelvic mobility was assessed using difference between standing and sitting pelvic tilt (\u0394PT), difference between standing and sitting sacral slope (\u0394SS) and difference between standing and sitting anterior pelvic plane angle (\u0394APP) tilt. Patients were classified as having rigid (\u0394SS\u2009&lt;\u200910\u00b0) or non\u2010rigid (\u0394SS\u2009\u2265\u200910\u00b0). Acetabular version, supratrochanteric femoral torsion, Visual Analogue Scale (VAS), modified Harris Hip Score and International Hip Outcome Tool\u201012 (iHOT\u201012) were evaluated.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Compared with controls, the patient group had significantly lower sitting PT, \u0394PT (mean difference \u221210.0\u00b0, 95% confidence interval [CI] \u221212.0 to \u22128.0), \u0394SS (\u221212.4\u00b0, 95% CI \u221215.1 to \u22129.7), sitting APP tilt and \u0394APP tilt (\u221214.4\u00b0, 95% CI \u221217.1 to \u221211.7), whereas standing APP tilt and sitting SS were significantly higher (all\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.01). Among patients, 34 were classified as rigid pelvis and 20 as non\u2010rigid pelvis. The non\u2010rigid subgroup showed higher sitting PT, \u0394PT, \u0394SS, sitting APP tilt and \u0394APP tilt, lower sitting SS, lower acetabular version (\u22123.8\u00b0, 95% CI \u22125.7 to \u22121.9;\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001) and higher supratrochanteric torsion (4.4\u00b0, 95% CI 0.7\u20138.1;\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.02). Clinical scores did not differ between subgroups. \u0394PT and \u0394APP tilt correlated with clinical outcome measures. In multivariable regression, \u0394PT was independently associated with VAS and mHHS, whereas \u0394APP tilt was independently associated with VAS and iHOT\u201012.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Patients with FAI\u2010like hip pain without classical imaging findings demonstrated reduced spinopelvic mobility. Rotational morphology may represent an additional biomechanical contributor, although its clinical relevance remains uncertain. Assessment of these parameters may provide additional information in selected patients with persistent symptoms and inconclusive imaging findings.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Level of Evidence<\/jats:title>\n                    <jats:p>Level III retrospective comparative study.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/ksa.70494","type":"journal-article","created":{"date-parts":[[2026,6,16]],"date-time":"2026-06-16T10:31:43Z","timestamp":1781605903000},"page":"2602-2611","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Spinopelvic mobility and rotational morphology in patients with femoroacetabular impingement\u2010like hip pain without classical imaging findings"],"prefix":"10.1002","volume":"34","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8956-3819","authenticated-orcid":false,"given":"Muhammed Bilal","family":"Kurk","sequence":"first","affiliation":[{"name":"Department of Orthopaedics and Traumatology V.M. Medical Park Maltepe Hospital Istanbul Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8627-5651","authenticated-orcid":false,"given":"Ahmet","family":"Keskin","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics and Traumatology University of Health Sciences Baltalimani Bone Diseases Training and Research Hospital Istanbul Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0009-2889-7255","authenticated-orcid":false,"given":"Mustafa","family":"Tuzel","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics and Traumatology University of Health Sciences Baltalimani Bone Diseases Training and Research Hospital Istanbul Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8427-8856","authenticated-orcid":false,"given":"Kutalmis","family":"Albayrak","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics and Traumatology University of Health Sciences Baltalimani Bone Diseases Training and Research Hospital Istanbul Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6127-9672","authenticated-orcid":false,"given":"Bulent","family":"Karslioglu","sequence":"additional","affiliation":[{"name":"Department of Orthopedics and Traumatology Faculty of Medicine, Istinye University, Liv Hospital Vadi Istanbul Istanbul Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,6,16]]},"reference":[{"key":"e_1_2_12_2_1","doi-asserted-by":"crossref","first-page":"218","DOI":"10.1016\/j.joca.2013.11.007","article-title":"Cam impingement: 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