{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,22]],"date-time":"2026-01-22T12:35:48Z","timestamp":1769085348812,"version":"3.49.0"},"reference-count":31,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2019,1,17]],"date-time":"2019-01-17T00:00:00Z","timestamp":1547683200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2019,1,17]],"date-time":"2019-01-17T00:00:00Z","timestamp":1547683200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/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":[[2019,10]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>This study examined the influence of the mechanical medial proximal tibial angle (MPTA) on anterior cruciate ligament (ACL) degeneration following open wedge high tibial osteotomy (OWHTO). It was hypothesised that an excessive increase in MPTA would be associated with ACL degeneration following OWHTO.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Seventy\u2010four knees treated with OWHTO were retrospectively examined. Arthroscopic ACL grading [0 (intact) to 4 (complete rupture)], anterior tibial translation (ATT) test at the time of OWHTO with the index arthroscopy and at plate removal with the second\u2010look arthroscopy, clinical assessments using the Knee Society Score (KSS), and radiographic evaluations of MPTA were performed. The relationship between MPTA and the ACL condition was analysed using Spearman\u2019s correlation.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The time from the index arthroscopy to the second\u2010look arthroscopy was 15.0\u2009\u00b1\u20094.4\u00a0months; the total follow\u2010up was 31.0\u2009\u00b1\u20096.5\u00a0months. ACL grade significantly increased from 0.6\u2009\u00b1\u20090.8 (index arthroscopy) to 1.1\u2009\u00b1\u20091.2 (second\u2010look arthroscopy) (<jats:italic>p<\/jats:italic>\u2009&lt;\u20090.0018). ATT on the operated side significantly decreased from 7.1\u2009\u00b1\u20092.6\u00a0mm preoperatively to 5.3\u2009\u00b1\u20092.3\u00a0mm at the time of plate removal (<jats:italic>p<\/jats:italic>\u2009&lt;\u20090.001). No significant difference was observed in KSS for ACL grades in the steady and progression groups. Changes in MPTA from the preoperative to postoperative period were significantly higher in the progression group (<jats:italic>p<\/jats:italic>\u2009=\u20090.0155). Changes in ACL grades were significantly correlated with preoperative MPTA and changes in MPTA (<jats:italic>r<\/jats:italic>\u2009=\u2009\u2212\u20090.365 and 0.343, respectively; <jats:italic>p<\/jats:italic>\u2009&lt;\u20090.01).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Excessively increased MPTA led to ACL degeneration following OWHTO. ACL degeneration was not associated with short\u2010term clinical outcomes. Excessive correction of MPTA should be avoided to prevent ACL degeneration following OWHTO.<\/jats:p><\/jats:sec><jats:sec><jats:title>Level of evidence<\/jats:title><jats:p>Therapeutic case series, Level IV.<\/jats:p><\/jats:sec>","DOI":"10.1007\/s00167-019-05354-0","type":"journal-article","created":{"date-parts":[[2019,1,17]],"date-time":"2019-01-17T02:21:32Z","timestamp":1547691692000},"page":"3374-3380","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["ACL degeneration after an excessive increase in the medial proximal tibial angle with medial open wedge high tibial osteotomy"],"prefix":"10.1002","volume":"27","author":[{"given":"Hiroyasu","family":"Ogawa","sequence":"first","affiliation":[{"name":"<!--<label>1<\/label>--> Department of Orthopaedic Surgery Gifu University Graduate School of Medicine Yanagido 1\u20101 501\u20101194 Gifu Japan"},{"name":"<!--<label>2<\/label>--> Department of Advanced Joint Reconstructive Surgery Gifu University Graduate School of Medicine 501\u20101194 Gifu Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kazu","family":"Matsumoto","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> Department of Orthopaedic Surgery Gifu University Graduate School of Medicine Yanagido 1\u20101 501\u20101194 Gifu Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Haruhiko","family":"Akiyama","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> Department of Orthopaedic Surgery Gifu University Graduate School of Medicine Yanagido 1\u20101 501\u20101194 Gifu Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2019,1,17]]},"reference":[{"key":"e_1_2_8_2_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00402\u2010004\u20100728\u20108"},{"key":"e_1_2_8_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2007.05.018"},{"key":"e_1_2_8_4_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167\u2010012\u20102122\u20103"},{"key":"e_1_2_8_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.knee.2016.09.009"},{"key":"e_1_2_8_6_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167\u2010009\u20100903\u20100"},{"key":"e_1_2_8_7_2","doi-asserted-by":"publisher","DOI":"10.1302\/0301\u2010620X.87B9.15972"},{"key":"e_1_2_8_8_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167\u2010011\u20101614\u2010x"},{"key":"e_1_2_8_9_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00264\u2010014\u20102442\u20107"},{"key":"e_1_2_8_10_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0030-5898(20)30753-7"},{"key":"e_1_2_8_11_2","doi-asserted-by":"publisher","DOI":"10.1177\/0363546503258880"},{"key":"e_1_2_8_12_2","doi-asserted-by":"publisher","DOI":"10.2106\/00004623\u2010198769030\u201000005"},{"key":"e_1_2_8_13_2","doi-asserted-by":"publisher","DOI":"10.1136\/ard.16.4.494"},{"key":"e_1_2_8_14_2","doi-asserted-by":"publisher","DOI":"10.1177\/0363546509342701"},{"key":"e_1_2_8_15_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167\u2010002\u20100334\u20107"},{"key":"e_1_2_8_16_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2004.01.024"},{"key":"e_1_2_8_17_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jbiomech.2014.01.055"},{"key":"e_1_2_8_18_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.arth.2016.12.043"},{"key":"e_1_2_8_19_2","doi-asserted-by":"publisher","DOI":"10.1097\/00003086-198909000-00035"},{"key":"e_1_2_8_20_2","doi-asserted-by":"publisher","DOI":"10.1177\/03635465000280030201"},{"key":"e_1_2_8_21_2","doi-asserted-by":"publisher","DOI":"10.1177\/0363546504269034"},{"key":"e_1_2_8_22_2","doi-asserted-by":"publisher","DOI":"10.2106\/00004623\u2010198365020\u201000004"},{"key":"e_1_2_8_23_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00402\u2010017\u20102846\u20100"},{"key":"e_1_2_8_24_2","doi-asserted-by":"publisher","DOI":"10.1302\/0301\u2010620X.99B7.BJJ\u20102016\u20100927.R1"},{"key":"e_1_2_8_25_2","doi-asserted-by":"crossref","unstructured":"OgawaH MatsumotoK AkiyamaHCoronal tibiofemoral subluxation is correlated to correction angle in medial opening wedge high tibial osteotomy.Knee Surg Sports Traumatol Arthrosc(2018)10.1007\/s00167\u2010018\u20104948\u2010929732517","DOI":"10.1007\/s00167-018-4948-9"},{"key":"e_1_2_8_26_2","doi-asserted-by":"publisher","DOI":"10.1177\/2325967116630748"},{"key":"e_1_2_8_27_2","doi-asserted-by":"publisher","DOI":"10.1097\/00003086\u2010199803000\u201000035"},{"key":"e_1_2_8_28_2","doi-asserted-by":"publisher","DOI":"10.1177\/0363546506287297"},{"key":"e_1_2_8_29_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167\u2010016\u20104172\u20104"},{"key":"e_1_2_8_30_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167\u2010012\u20102206\u20100"},{"key":"e_1_2_8_31_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.injury.2003.09.025"},{"key":"e_1_2_8_32_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00264\u2010009\u20100902\u20102"}],"container-title":["Knee Surgery, Sports Traumatology, Arthroscopy"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/link.springer.com\/article\/10.1007\/s00167-019-05354-0\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/link.springer.com\/content\/pdf\/10.1007\/s00167-019-05354-0.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/link.springer.com\/content\/pdf\/10.1007\/s00167-019-05354-0.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"},{"URL":"https:\/\/esskajournals.onlinelibrary.wiley.com\/doi\/pdf\/10.1007\/s00167-019-05354-0","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,19]],"date-time":"2025-10-19T10:50:02Z","timestamp":1760871002000},"score":1,"resource":{"primary":{"URL":"https:\/\/esskajournals.onlinelibrary.wiley.com\/doi\/10.1007\/s00167-019-05354-0"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2019,1,17]]},"references-count":31,"journal-issue":{"issue":"10","published-print":{"date-parts":[[2019,10]]}},"alternative-id":["10.1007\/s00167-019-05354-0"],"URL":"https:\/\/doi.org\/10.1007\/s00167-019-05354-0","archive":["Portico"],"relation":{},"ISSN":["0942-2056","1433-7347"],"issn-type":[{"value":"0942-2056","type":"print"},{"value":"1433-7347","type":"electronic"}],"subject":[],"published":{"date-parts":[[2019,1,17]]},"assertion":[{"value":"30 July 2018","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"11 January 2019","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"17 January 2019","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 that they have no conflict of interest.","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 research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethical approval"}},{"value":"Informed consent was obtained from all individual participants included in this study.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Informed consent"}}]}}