{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,12]],"date-time":"2026-05-12T16:28:44Z","timestamp":1778603324183,"version":"3.51.4"},"reference-count":29,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2022,6,6]],"date-time":"2022-06-06T00:00:00Z","timestamp":1654473600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2022,6,6]],"date-time":"2022-06-06T00:00:00Z","timestamp":1654473600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.springernature.com\/gp\/researchers\/text-and-data-mining"},{"start":{"date-parts":[[2022,6,6]],"date-time":"2022-06-06T00:00:00Z","timestamp":1654473600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.springernature.com\/gp\/researchers\/text-and-data-mining"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Knee surg. sports traumatol. arthrosc."],"published-print":{"date-parts":[[2023,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>To verify whether femoral anteversion measured by the surgical transepicondylar axis (S\u2010FA) is a reliable parameter for evaluating femoral rotational deformities and to provide an indication for derotational distal femoral osteotomy (DDFO) in patients with patellar dislocation.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Ninety patients with recurrent patellar dislocation and 90 healthy individuals were enrolled. The S\u2010FA, the femoral anteversion measured by posterior condylar reference line (P\u2010FA), the length of posterior femoral condyles, and the posterior condylar angle (PCA) were assessed by CT images. The unpaired t test and Pearson correlation analysis were conducted. Receiver operating characteristic curves and the area under the curve (AUC) were used to evaluate the diagnostic capacity of the parameters. The pathological value of the measurements was determined, and a binary regression model was established.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The S\u2010FA and P\u2010FA were greater in the study group (14.2\u2009\u00b1\u20097.7\u00b0 and 19.7\u2009\u00b1\u20097.3\u00b0, respectively) than in the control group (7.2\u2009\u00b1\u20098.0\u00b0 and 12.2\u2009\u00b1\u20098.2\u00b0, respectively) (<jats:italic>P<\/jats:italic>\u2009&lt;\u20090.001). The lateral\/posterior condyle was shorter in patients with patellar dislocation (21.2\u2009\u00b1\u20092.5\u00a0mm) than in healthy individuals (23.5\u2009\u00b1\u20092.7\u00a0mm) (<jats:italic>P<\/jats:italic>\u2009=\u20090.001). The P\u2010FA was correlated with PCA in the study group (<jats:italic>P<\/jats:italic>\u2009&lt;\u20090.001). The S\u2010FA and P\u2010FA had AUCs of 0.734 and 0.767 for patellar dislocation, respectively. The pathological values of the S\u2010FA and P\u2010FA were 20.4\u00b0 and 25.8\u00b0, respectively. The S\u2010FA revealed a significant OR of 10.47 (<jats:italic>P<\/jats:italic>\u2009=\u20090.014) for patellar dislocation.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The S\u2010FA is a reliable parameter for identifying femoral rotational deformities in patients with patellar dislocation. DDFO is recommended when a pathological S\u2010FA (&gt;\u200920.4\u00b0) is presented.<\/jats:p><\/jats:sec><jats:sec><jats:title>Level of evidence<\/jats:title><jats:p>Retrospective cohort study (diagnostic), level II.<\/jats:p><\/jats:sec>","DOI":"10.1007\/s00167-022-07016-0","type":"journal-article","created":{"date-parts":[[2022,6,6]],"date-time":"2022-06-06T09:04:02Z","timestamp":1654506242000},"page":"3061-3069","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Femoral anteversion measured by the surgical transepicondylar axis is a reliable parameter for evaluating femoral rotational deformities in patients with patellar dislocation"],"prefix":"10.1002","volume":"31","author":[{"given":"Jiaxing","family":"Chen","sequence":"first","affiliation":[{"name":"<!--<label>1<\/label>--> Department of Orthopaedics The First Affiliated Hospital of Chongqing Medical University 400016 Chongqing China"},{"name":"<!--<label>2<\/label>--> Orthopedic Laboratory of Chongqing Medical University 400016 Chongqing China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Baoshan","family":"Yin","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> Department of Orthopaedics The First Affiliated Hospital of Chongqing Medical University 400016 Chongqing China"},{"name":"<!--<label>2<\/label>--> Orthopedic Laboratory of Chongqing Medical University 400016 Chongqing China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jinjiang","family":"Yao","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> Department of Orthopaedics The First Affiliated Hospital of Chongqing Medical University 400016 Chongqing China"},{"name":"<!--<label>2<\/label>--> Orthopedic Laboratory of Chongqing Medical University 400016 Chongqing China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yunlong","family":"Zhou","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> Department of Orthopaedics The First Affiliated Hospital of Chongqing Medical University 400016 Chongqing China"},{"name":"<!--<label>2<\/label>--> Orthopedic Laboratory of Chongqing Medical University 400016 Chongqing China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hua","family":"Zhang","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> Department of Orthopaedics The First Affiliated Hospital of Chongqing Medical University 400016 Chongqing China"},{"name":"<!--<label>2<\/label>--> Orthopedic Laboratory of Chongqing Medical University 400016 Chongqing China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jian","family":"Zhang","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> Department of Orthopaedics The First Affiliated Hospital of Chongqing Medical University 400016 Chongqing China"},{"name":"<!--<label>2<\/label>--> Orthopedic Laboratory of Chongqing Medical University 400016 Chongqing China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1717-101X","authenticated-orcid":false,"given":"Aiguo","family":"Zhou","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> Department of Orthopaedics The First Affiliated Hospital of Chongqing Medical University 400016 Chongqing China"},{"name":"<!--<label>2<\/label>--> Orthopedic Laboratory of Chongqing Medical University 400016 Chongqing China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2022,6,6]]},"reference":[{"key":"e_1_2_13_2_2","doi-asserted-by":"publisher","DOI":"10.1177\/0363546520958423"},{"key":"e_1_2_13_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2020.12.210"},{"key":"e_1_2_13_4_2","doi-asserted-by":"publisher","DOI":"10.1302\/0301\u2010620X.102B7.BJJ\u20102019\u20101331.R1"},{"key":"e_1_2_13_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2019.10.033"},{"key":"e_1_2_13_6_2","doi-asserted-by":"publisher","DOI":"10.1177\/0363546520968566"},{"key":"e_1_2_13_7_2","unstructured":"MeynardP MalatrayM Sappey\u2010MarinierE MagnussenRA BodiouV LustigSet al. 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January 2022","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"15 May 2022","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"6 June 2022","order":3,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"The authors declare they have no financial interests.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflicts of interest"}},{"value":"All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and\/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. The study was approved by the Ethics Committee of the First Affiliated Hospital of Chongqing Medical University. (Number: 2022-K8).","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval"}},{"value":"The informed consent was waived by the Ethics Committee of the First Affiliated Hospital of Chongqing Medical University.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent to participate"}}]}}