{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,23]],"date-time":"2026-06-23T18:39:55Z","timestamp":1782239995721,"version":"3.54.5"},"reference-count":35,"publisher":"Springer Science and Business Media LLC","issue":"5","license":[{"start":{"date-parts":[[2021,11,29]],"date-time":"2021-11-29T00:00:00Z","timestamp":1638144000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2021,11,29]],"date-time":"2021-11-29T00:00:00Z","timestamp":1638144000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"funder":[{"name":"University of Bern"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Eur Radiol"],"published-print":{"date-parts":[[2022,5]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec>\n                <jats:title>Objectives<\/jats:title>\n                <jats:p>To compare the prevalence of pre- and postoperative osseous deformities and intra-articular lesions in patients with persistent pain following arthroscopic femoroacetabular impingement (FAI) correction and to identify imaging findings associated with progressive cartilage damage.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Methods<\/jats:title>\n                <jats:p>Retrospective study evaluating patients with hip pain following arthroscopic FAI correction between 2010 and 2018. Pre- and postoperative imaging studies were analyzed independently by two blinded readers for osseous deformities (cam-deformity, hip dysplasia, acetabular overcoverage, femoral torsion) and intra-articular lesions (chondro-labral damage, capsular lesions). Prevalence of osseous deformities and intra-articular lesions was compared with paired <jats:italic>t<\/jats:italic>-tests\/McNemar tests for continuous\/dichotomous data. Association between imaging findings and progressive cartilage damage was assessed with logistic regression.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Results<\/jats:title>\n                <jats:p>Forty-six patients (mean age 29\u2009\u00b1\u200910\u00a0years; 30 female) were included. Postoperatively, 74% (34\/46) of patients had any osseous deformity including 48% (22\/46) acetabular and femoral deformities. Ninety-six percent (44\/46) had an intra-articular lesion ranging from 20% (9\/46) for femoral to 65% (30\/46) for acetabular cartilage lesions. Prevalence of hip dysplasia increased (2 to 20%, <jats:italic>p<\/jats:italic>\u2009=\u20090.01) from pre- to postoperatively while prevalence of cam-deformity decreased (83 to 28%, <jats:italic>p<\/jats:italic>\u2009&lt;\u20090.001).<\/jats:p>\n                <jats:p>Progressive cartilage damage was detected in 37% (17\/46) of patients and was associated with extensive preoperative cartilage damage\u2009&gt;\u20092\u00a0h, i.e.,\u2009&gt;\u200960\u00b0 (OR 7.72; <jats:italic>p<\/jats:italic>\u2009=\u20090.02) and an incremental increase in postoperative alpha angles (OR 1.18; <jats:italic>p<\/jats:italic>\u2009=\u20090.04).<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Conclusion<\/jats:title>\n                <jats:p>Prevalence of osseous deformities secondary to over- or undercorrrection was high. Extensive preoperative cartilage damage and higher postoperative alpha angles increase the risk for progressive degeneration.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Key Points<\/jats:title>\n                <jats:p><jats:italic>\u2022 The majority of patients presented with osseous deformities of the acetabulum or femur (74%) and with intra-articular lesions (96%) on postoperative imaging.<\/jats:italic><\/jats:p>\n                <jats:p><jats:italic>\u2022 Prevalence of hip dysplasia increased (2 to 20%, p\u2009=\u20090.01) from pre- to postoperatively while prevalence of a cam deformity decreased (83 to 28%, p\u2009&lt;\u20090.001).<\/jats:italic><\/jats:p>\n                <jats:p><jats:italic>\u2022 Progressive cartilage damage was present in 37% of patients and was associated with extensive preoperative cartilage damage\u2009&gt;\u20092\u00a0h (OR 7.72; p\u2009=\u20090.02) and with an incremental increase in postoperative alpha angles (OR 1.18; p\u2009=\u20090.04).<\/jats:italic><\/jats:p>\n              <\/jats:sec>","DOI":"10.1007\/s00330-021-08398-4","type":"journal-article","created":{"date-parts":[[2021,11,29]],"date-time":"2021-11-29T12:02:48Z","timestamp":1638187368000},"page":"3097-3111","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":13,"title":["High prevalence of hip lesions secondary to arthroscopic over- or undercorrection of femoroacetabular impingement in patients with postoperative pain"],"prefix":"10.1007","volume":"32","author":[{"given":"Malin K.","family":"Meier","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Till D.","family":"Lerch","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Simon D.","family":"Steppacher","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Klaus A.","family":"Siebenrock","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Moritz","family":"Tannast","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Peter","family":"Vavron","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ehrenfried","family":"Schmaranzer","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8729-7243","authenticated-orcid":false,"given":"Florian","family":"Schmaranzer","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2021,11,29]]},"reference":[{"issue":"12","key":"8398_CR1","doi-asserted-by":"publisher","first-page":"2307","DOI":"10.1016\/j.arthro.2015.06.008","volume":"31","author":"DC Sing","year":"2015","unstructured":"Sing DC, Feeley BT, Tay B, Vail TP, Zhang AL (2015) Age-related trends in hip arthroscopy: a large cross-sectional analysis. 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