{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,20]],"date-time":"2026-09-20T20:55:23Z","timestamp":1789937723739,"version":"4.0.1"},"reference-count":32,"publisher":"Wiley","issue":"11","license":[{"start":{"date-parts":[[2023,10,4]],"date-time":"2023-10-04T00:00:00Z","timestamp":1696377600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2023,10,4]],"date-time":"2023-10-04T00:00:00Z","timestamp":1696377600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.springernature.com\/gp\/researchers\/text-and-data-mining"},{"start":{"date-parts":[[2023,10,4]],"date-time":"2023-10-04T00:00:00Z","timestamp":1696377600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.springernature.com\/gp\/researchers\/text-and-data-mining"}],"funder":[{"DOI":"10.13039\/501100009592","name":"Beijing Municipal Science and Technology Commission, Adminitrative Commission of Zhongguancun Science Park","doi-asserted-by":"publisher","award":["Z211100002921043"],"award-info":[{"award-number":["Z211100002921043"]}],"id":[{"id":"10.13039\/501100009592","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["82202777"],"award-info":[{"award-number":["82202777"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Beijing Municipal Commission of Science and Technology","award":["Z211100002921043"],"award-info":[{"award-number":["Z211100002921043"]}]},{"name":"Beijing Jishuitan Hospital Nova Program","award":["XKXX202211"],"award-info":[{"award-number":["XKXX202211"]}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["82202777"],"award-info":[{"award-number":["82202777"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Knee surg. sports traumatol. arthrosc."],"published-print":{"date-parts":[[2023,11]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>To compare clinical outcome between recurrent patellar dislocation (RPD) with or without actual tibial tubercle lateralisation (TTL) after medial patellofemoral ligament reconstruction (MPFL\u2010R) combined with tibial tubercle transfer.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>From 2015 to 2018, a total of 172\u00a0knees with RPD and a tibial tubercle\u2013trochlear groove (TT\u2013TG) distance of\u2009&gt;\u200920\u00a0mm were treated with MPFL\u2010R combined with tibial tubercle transfer. Patients were divided into the lateralisation group (TT\u2013PCL\u2009&gt;\u200924\u00a0mm, <jats:italic>n<\/jats:italic>\u2009=\u200974) and the nonlateralisation group (TT\u2013PCL\u2009\u2264\u200924\u00a0mm, <jats:italic>n<\/jats:italic>\u2009=\u200960) based on the presence or absence of actual TTL (TT\u2013PCL\u2009&gt;\u200924\u00a0mm). Clinical outcomes were assessed postoperatively at a minimum of 2 years. Second\u2010look arthroscopic evaluations were available for 84\u00a0knees to assess cartilage damage.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>A total of 134\u00a0knees with a median follow\u2010up time of 32\u00a0months were included. Tibiofemoral rotation (TFR) was significantly higher in the nonlateralisation group than in the lateralisation group (15.4\u00b0 vs. 9.4\u00b0, <jats:italic>P<\/jats:italic>\u2009&lt;\u20090.001). At the final follow\u2010up, the nonlateralisation group had significantly lower Kujala (78.2 vs. 86.4, <jats:italic>P<\/jats:italic>\u2009=\u20090.001) and Lysholm (80.3 vs. 88.2, <jats:italic>P<\/jats:italic>\u2009=\u20090.003) scores than the lateralisation group. At the time of the second\u2010look arthroscopic assessment, 38.9% of the patients in the nonlateralisation group showed cartilage worsening in the medial patellar facet that was significantly higher than that in the lateralisation group (38.9% vs. 12.5%, <jats:italic>P<\/jats:italic>\u2009=\u20090.015).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Patients with RPD and an increased TT\u2013TG distance of\u2009&gt;\u200920\u00a0mm but without actual tibial tubercle lateralisation benefit less from tibial tubercle transfer than patients with actual tibial tubercle lateralisation, which may be related to the significantly higher tibiofemoral rotation angle of the former.<\/jats:p><\/jats:sec><jats:sec><jats:title>Level of evidence<\/jats:title><jats:p>III.<\/jats:p><\/jats:sec>","DOI":"10.1007\/s00167-023-07587-6","type":"journal-article","created":{"date-parts":[[2023,10,3]],"date-time":"2023-10-03T21:01:45Z","timestamp":1696366905000},"page":"5162-5170","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":20,"title":["Increased TT\u2013TG distance caused by excessive tibiofemoral rotation predicts poor clinical outcomes after tibial tubercle osteotomy in recurrent patellar dislocation"],"prefix":"10.1002","volume":"31","author":[{"given":"Zhi\u2010jun","family":"Zhang","sequence":"first","affiliation":[{"name":"<!--<label>1<\/label>--> Sports Medicine Service Beijing Jishuitan Hospital, Capital Medical University No. 31, Xin Jie Kou East Street, Xi Cheng District Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zheng","family":"Feng","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> Sports Medicine Service Beijing Jishuitan Hospital, Capital Medical University No. 31, Xin Jie Kou East Street, Xi Cheng District Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Menglinqian","family":"Di","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> Sports Medicine Service Beijing Jishuitan Hospital, Capital Medical University No. 31, Xin Jie Kou East Street, Xi Cheng District Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yan\u2010wei","family":"Cao","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> Sports Medicine Service Beijing Jishuitan Hospital, Capital Medical University No. 31, Xin Jie Kou East Street, Xi Cheng District Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tong","family":"Zheng","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> Sports Medicine Service Beijing Jishuitan Hospital, Capital Medical University No. 31, Xin Jie Kou East Street, Xi Cheng District Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hui","family":"Zhang","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> Sports Medicine Service Beijing Jishuitan Hospital, Capital Medical University No. 31, Xin Jie Kou East Street, Xi Cheng District Beijing 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June 2023","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"7 September 2023","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"4 October 2023","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 that they have no conflict of interest.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interest"}},{"value":"This study was funded by Beijing Municipal Commission of Science and Technology (Z211100002921043), Beijing Jishuitan Hospital Nova Program (XKXX202211) and National Natural Science Foundation of China (82202777).","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Funding"}},{"value":"All the procedures performed in this retrospective study were in accordance with the ethical standards of the Beijing Jishuitan hospital, and this study was performed after obtaining approval from our institutional review board (IRB, No. 20230309).","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval"}},{"value":"All the patients provided informed consent before participating in this study.","order":5,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent to participate"}},{"value":"All the patients provided informed consent for publication.","order":6,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}}]}}