{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,15]],"date-time":"2026-03-15T18:28:31Z","timestamp":1773599311346,"version":"3.50.1"},"reference-count":16,"publisher":"Wiley","issue":"12","license":[{"start":{"date-parts":[[2021,12,3]],"date-time":"2021-12-03T00:00:00Z","timestamp":1638489600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2021,12,3]],"date-time":"2021-12-03T00:00:00Z","timestamp":1638489600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.springer.com\/tdm"},{"start":{"date-parts":[[2021,12,3]],"date-time":"2021-12-03T00:00:00Z","timestamp":1638489600000},"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":[[2022,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>To identify the factors impacting changes in valgus laxity between before and after open\u2010wedge high tibial osteotomy (OW\u2010HTO) using quantitative valgus stress radiographs.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A total of 40\u00a0knees from 38 patients who underwent OW\u2010HTO were assessed. The study population comprised 14\u00a0men and 24 women, with a mean age of 61.5 years. Valgus stress radiographs before and 1 year after OW\u2010HTO were performed using a Telos device. The difference between pre\u2010 and postoperative joint line convergence angle (JLCA) was expressed as \u0394JLCA (post\u2013pre). As indicators of the proximal detachment of superficial medial collateral ligament (sMCL) on radiographs, two distances were defined: the distance from the level of the osteotomy starting point to the tangent line of the proximal tibial plateau (Distance A), or to the medial edge of the proximal tibial plateau (Distance B). Correlations between \u0394JLCA and radiographic parameters or KOOS sub\u2010scores were assessed using Spearman\u2019s rank correlation coefficient analysis. Receiver operator curves were generated to evaluate the predictive strength of the significant factor for an increase in \u0394JLCA\u2009&gt;\u20091\u00b0.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Pre\u2010operative OA severity consisted of Kellgren\u2013Lawrence grade 2 (<jats:italic>n<\/jats:italic>\u2009=\u200918), 3 (<jats:italic>n<\/jats:italic>\u2009=\u200916), and 4 (<jats:italic>n<\/jats:italic>\u2009=\u20096). The average \u0394JLCA (post\u2013pre) was 0.5\u00b0, and ranged from\u2009\u2212\u20091.4\u00b0 to\u2009+\u20093.0\u00b0. The maximum systemic measurement error and limits of agreement were 0.07\u00b0 and 0.20\u00b0, respectively. There were significant correlations between \u0394JLCA and Distance A (36.9\u2009\u00b1\u20093.9\u00a0mm, <jats:italic>R<\/jats:italic>\u2009=\u2009\u2009\u2212\u20090.46, <jats:italic>p<\/jats:italic>\u2009=\u20090.002), between \u0394JLCA and Distance B (39.9\u2009\u00b1\u20094.0\u00a0mm, <jats:italic>R<\/jats:italic>\u2009=\u2009\u2009\u2212\u20090.49, <jats:italic>p<\/jats:italic>\u2009=\u20090.001). The cut\u2010off value for Distance A was determined to be 35\u00a0mm below the tibial plateau; the AUC was 0.804, with a sensitivity of 0.75 and a specificity of 0.82. Distance B correlated strongly with Distance A (<jats:italic>R<\/jats:italic>\u2009=\u20090.96, <jats:italic>p<\/jats:italic>\u2009&lt;\u20090.001). There was no significant correlation between \u0394JLCA and KOOS sub\u2010scores 1 year after OW\u2010HTO.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Transverse osteotomy closer to tibial plateau was associated with larger valgus joint laxity postoperatively. This finding implies that sMCL proximal detachment, which was related to the level of the osteotomy starting point on the proximal tibia, potentially affected postoperative valgus laxity.<\/jats:p><\/jats:sec><jats:sec><jats:title>Level of evidence<\/jats:title><jats:p>IV.<\/jats:p><\/jats:sec>","DOI":"10.1007\/s00167-021-06810-6","type":"journal-article","created":{"date-parts":[[2021,12,2]],"date-time":"2021-12-02T22:02:36Z","timestamp":1638482556000},"page":"3983-3991","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Transverse osteotomy closer to tibial plateau is associated with larger postoperative change in valgus laxity after open\u2010wedge high tibial osteotomy"],"prefix":"10.1002","volume":"30","author":[{"given":"Yu","family":"Soejima","sequence":"first","affiliation":[{"name":"<!--<label>1<\/label>--> Department of Orthopaedic Surgery, Graduate School of Medical Sciences Kyushu University 3\u20101\u20101, Maidashi, Higashi\u2010ku 812\u20108582 Fukuoka Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3666-3952","authenticated-orcid":false,"given":"Yukio","family":"Akasaki","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> Department of Orthopaedic Surgery, Graduate School of Medical Sciences Kyushu University 3\u20101\u20101, Maidashi, Higashi\u2010ku 812\u20108582 Fukuoka Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Satoshi","family":"Hamai","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> Department of Orthopaedic Surgery, Graduate School of Medical Sciences Kyushu University 3\u20101\u20101, Maidashi, Higashi\u2010ku 812\u20108582 Fukuoka Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hidetoshi","family":"Tsushima","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> Department of Orthopaedic Surgery, Graduate School of Medical Sciences Kyushu University 3\u20101\u20101, Maidashi, Higashi\u2010ku 812\u20108582 Fukuoka Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shinya","family":"Kawahara","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> Department of Orthopaedic Surgery, Graduate School of Medical Sciences Kyushu University 3\u20101\u20101, Maidashi, Higashi\u2010ku 812\u20108582 Fukuoka Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yasuharu","family":"Nakashima","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> Department of Orthopaedic Surgery, Graduate School of Medical Sciences Kyushu University 3\u20101\u20101, Maidashi, Higashi\u2010ku 812\u20108582 Fukuoka Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2021,12,3]]},"reference":[{"key":"e_1_2_9_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2007.05.018"},{"key":"e_1_2_9_3_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167\u2010019\u201005473\u20108"},{"key":"e_1_2_9_4_2","doi-asserted-by":"publisher","DOI":"10.1055\/s\u20100036\u20101592149"},{"key":"e_1_2_9_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.asmr.2019.10.009"},{"key":"e_1_2_9_6_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.knee.2019.09.013"},{"key":"e_1_2_9_7_2","doi-asserted-by":"publisher","DOI":"10.2106\/00004623\u2010200709000\u201000016"},{"key":"e_1_2_9_8_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00776\u2010006\u20101009\u2010x"},{"key":"e_1_2_9_9_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167\u2010005\u20100649\u20102"},{"key":"e_1_2_9_10_2","doi-asserted-by":"publisher","DOI":"10.1186\/s12891\u2010019\u20102859\u20107"},{"key":"e_1_2_9_11_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167\u2010018\u20105167\u20100"},{"key":"e_1_2_9_12_2","doi-asserted-by":"publisher","DOI":"10.1177\/0363546515624925"},{"key":"e_1_2_9_13_2","doi-asserted-by":"publisher","DOI":"10.1002\/1529\u20100131(199905)42:5<861::AID\u2010ANR4>3.0.CO;2\u2010N"},{"key":"e_1_2_9_14_2","doi-asserted-by":"publisher","DOI":"10.5792\/ksrr.2016.28.2.89"},{"key":"e_1_2_9_15_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167\u2010018\u20105276\u20109"},{"key":"e_1_2_9_16_2","doi-asserted-by":"publisher","DOI":"10.1080\/03009740510018651"},{"key":"e_1_2_9_17_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167\u2010017\u20104438\u20105"}],"container-title":["Knee 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July 2021","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"20 November 2021","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"3 December 2021","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 state that there are no conflicts of interest, which might have influenced the preparation of this manuscript.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interest"}},{"value":"Ethical approval was provided in the Methods just before statistical analysis.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethical approval"}}]}}