{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,17]],"date-time":"2026-08-17T15:14:49Z","timestamp":1786979689694,"version":"build-2736575974"},"reference-count":40,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2021,4,9]],"date-time":"2021-04-09T00:00:00Z","timestamp":1617926400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2021,4,9]],"date-time":"2021-04-09T00:00:00Z","timestamp":1617926400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"},{"start":{"date-parts":[[2021,4,9]],"date-time":"2021-04-09T00:00:00Z","timestamp":1617926400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.springer.com\/tdm"},{"start":{"date-parts":[[2021,4,9]],"date-time":"2021-04-09T00:00:00Z","timestamp":1617926400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.springer.com\/tdm"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Knee surg. sports traumatol. arthrosc."],"published-print":{"date-parts":[[2021,8]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>To determine the differences in anatomic parameters between ipsilateral dislocated knees and contralateral non\u2010dislocated knees in patients with unilateral patellar dislocation and to identify any variations in ipsilateral knees contributing to contralateral anatomic abnormalities.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>A total of 82 patients with unilateral patellar dislocation from 2016 to 2019 were retrospectively evaluated. Bilateral anatomic factors, including the tibial tubercle to trochlear groove (TT\u2010TG) distance, lower limb rotational deformities, trochlear dysplasia, patella tilt, and patellar height, were assessed by CT.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      The study included 46 patients (32 females and 14\u00a0males, mean age\u2009\u00b1\u2009SD 20.5\u2009\u00b1\u20096.8). The interobserver reliability of each parameter showed excellent agreement. The ipsilateral TT\u2010TG distance (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.004), patella tilt (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.001), and patellar height (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.01) were greater in the ipsilateral knees than in the contralateral knees. The lateral trochlea inclination (LTI) in the contralateral knees was larger than that in the ipsilateral knees (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.022). There was a significant difference in the distribution of trochlear dysplasia of Dejour between the ipsilateral knees (dislocated side) and the contralateral knees (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.036). However, bilateral femoral and\/or tibial torsion, and bilateral knee joint rotation did not differ significantly. Binary logistic regression showed that only ipsilateral LTI revealed significant ORs of 8.83 (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.016) and 7.64 (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.018) with regard to contralateral abnormal tibial torsion and LTI, respectively.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>In patients with unilateral patellar dislocation, the ipsilateral TT\u2010TG distance, patella tilt, and patellar height values were larger in the ipsilateral knees than in the contralateral knees, and trochlear dysplasia was more severe in the ipsilateral joints. The risks of contralateral pathological tibial torsion and LTI were 8.8\u2010 and 7.6\u2010fold higher, respectively, in patients with abnormal ipsilateral LTI.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Level of evidence<\/jats:title>\n                    <jats:p>Level IV.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1007\/s00167-021-06539-2","type":"journal-article","created":{"date-parts":[[2021,4,8]],"date-time":"2021-04-08T23:27:54Z","timestamp":1617924474000},"page":"2709-2716","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Ipsilateral patellofemoral morphological abnormalities are more severe than those of contralateral joints in patients with unilateral patellar dislocation"],"prefix":"10.1002","volume":"29","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>--> Chongqing Medical University 400016 Chongqing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiao","family":"Huang","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> Department of Orthopaedics The First Affiliated Hospital of Chongqing Medical University 400016 Chongqing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zijie","family":"Xu","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>--> Chongqing Medical University 400016 Chongqing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"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"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"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"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pei","family":"Zhao","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> Department of Orthopaedics The First Affiliated Hospital of Chongqing Medical University 400016 Chongqing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lifeng","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>--> Chongqing Medical University 400016 Chongqing China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2021,4,9]]},"reference":[{"key":"e_1_2_10_2_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167\u2010013\u20102650\u20105"},{"key":"e_1_2_10_3_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167\u2010018\u20104997\u20100"},{"key":"e_1_2_10_4_2","doi-asserted-by":"publisher","DOI":"10.1007\/s12178\u2010018\u20109481\u20104"},{"key":"e_1_2_10_5_2","doi-asserted-by":"crossref","first-page":"2026","DOI":"10.1016\/j.arthro.2017.06.020","article-title":"The tibial tubercle\u2010to\u2010trochlear groove distance is reliable in the setting of trochlear dysplasia, and superior to the tibial tubercle\u2010to\u2010posterior cruciate ligament distance when evaluating coronal malalignment in patellofemoral instability","volume":"33","author":"Brady JM","year":"2017","journal-title":"Arthroscopy"},{"key":"e_1_2_10_6_2","doi-asserted-by":"publisher","DOI":"10.1177\/0363546516681002"},{"key":"e_1_2_10_7_2","doi-asserted-by":"publisher","DOI":"10.1177\/0363546517704178"},{"key":"e_1_2_10_8_2","unstructured":"DagneauxL Bin Abd RazakHR LaumonerieP FaizhanA LiArnoS WellingsPet al. 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Arthroscopy"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/esskajournals.onlinelibrary.wiley.com\/doi\/pdf\/10.1007\/s00167-021-06539-2","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/article\/10.1007\/s00167-021-06539-2\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/esskajournals.onlinelibrary.wiley.com\/doi\/full-xml\/10.1007\/s00167-021-06539-2","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s00167-021-06539-2.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"},{"URL":"https:\/\/esskajournals.onlinelibrary.wiley.com\/doi\/pdf\/10.1007\/s00167-021-06539-2","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,3,16]],"date-time":"2026-03-16T03:20:49Z","timestamp":1773631249000},"score":1,"resource":{"primary":{"URL":"https:\/\/esskajournals.onlinelibrary.wiley.com\/doi\/10.1007\/s00167-021-06539-2"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,4,9]]},"references-count":40,"journal-issue":{"issue":"8","published-print":{"date-parts":[[2021,8]]}},"alternative-id":["10.1007\/s00167-021-06539-2"],"URL":"https:\/\/doi.org\/10.1007\/s00167-021-06539-2","archive":["Portico"],"relation":{},"ISSN":["0942-2056","1433-7347"],"issn-type":[{"value":"0942-2056","type":"print"},{"value":"1433-7347","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021,4,9]]},"assertion":[{"value":"14 October 2020","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"16 March 2021","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"9 April 2021","order":3,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Compliance with ethical standards"}},{"value":"The authors declare they have no financial interests.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict 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: 2019\u2013228).","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 in view of the retrospective nature of the study.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent to participate"}},{"value":"The data used to support the findings of this study are available from the corresponding author upon request.","order":5,"name":"Ethics","group":{"name":"EthicsHeading","label":"Availability of data and material"}},{"value":"Not applicable.","order":6,"name":"Ethics","group":{"name":"EthicsHeading","label":"Code availability"}}]}}