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According to the treatment method, these patients were divided into two groups: 3D printed osteotomy guide plate-assisted TKA (combined treatment group,<jats:italic>n<\/jats:italic>\u2009=\u200910) and TKA (treatment group,<jats:italic>n<\/jats:italic>\u2009=\u200910). The operation time, intraoperative bleeding volume, postoperative mean femorotibial angle (MFTA), and Knee Society Score (KSS) of the two groups were statistically analyzed.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Compared with the treatment group, the operation time was significantly shorter (<jats:italic>P<\/jats:italic>\u2009&lt;\u20090.05), the intraoperative blood loss and postoperative MFTA were significantly decreased (<jats:italic>P<\/jats:italic>\u2009&lt;\u20090.05), and the clinical and functional scores were significantly increased (<jats:italic>P<\/jats:italic>\u2009&lt;\u20090.05) in the combined treatment group.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>3D printed osteotomy guide plate-assisted TKA for valgus knee deformity is more effective than TKA alone.<\/jats:p><\/jats:sec>","DOI":"10.1186\/s13018-019-1349-9","type":"journal-article","created":{"date-parts":[[2019,10,21]],"date-time":"2019-10-21T10:51:08Z","timestamp":1571655068000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":15,"title":["Application of 3D printed osteotomy guide plate-assisted total knee arthroplasty in treatment of valgus knee deformity"],"prefix":"10.1186","volume":"14","author":[{"given":"Zhimin","family":"Shen","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hong","family":"Wang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yiqiang","family":"Duan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jian","family":"Wang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fengyan","family":"Wang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2019,10,21]]},"reference":[{"issue":"3","key":"1349_CR1","doi-asserted-by":"publisher","first-page":"131","DOI":"10.1007\/s10195-011-0142-2","volume":"12","author":"A Bistolfi","year":"2011","unstructured":"Bistolfi A, Massazza G, Rosso F, Deledda D, Gaito V, Lagalla F, et al. 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