{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,30]],"date-time":"2026-10-30T01:04:15Z","timestamp":1793322255763,"version":"4.5.0"},"reference-count":46,"publisher":"British Editorial Society of Bone & Joint Surgery","issue":"3","license":[{"start":{"date-parts":[[2014,3,1]],"date-time":"2014-03-01T00:00:00Z","timestamp":1393632000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/online.boneandjoint.org.uk\/TDM"}],"content-domain":{"domain":["online.boneandjoint.org.uk"],"crossmark-restriction":true},"short-container-title":["The Bone &amp; Joint Journal"],"published-print":{"date-parts":[[2014,3]]},"abstract":"<jats:p>Between 2003 and 2007, 99 knees in 77 patients underwent opening wedge high tibial osteotomy. We evaluated the effect of initial stable fixation combined with an artificial bone substitute on the mid- to long-term outcome after medial opening-wedge high tibial osteotomy (HTO) for medial compartmental osteoarthritis or spontaneous osteonecrosis of the knee in 78 knees in 64 patients available for review at a minimum of five years (mean age 68 years; 49 to 82). The mean follow-up was 6.5 years (5 to 10). The mean Knee Society knee score and function score improved from 49.6 (sd 11.4, 26 to 72) and 56.6 (sd 15.6, 5 to 100) before surgery to 88.1 (sd 12.5, 14 to 100) and 89.4 (sd 15.6, 5 to 100) at final follow-up (p\u00a0&lt; \u00a00.001) respectively. There were no significant differences between patients aged \u2265 70 and &lt; 70 years. The mean standing femorotibial angle was corrected significantly from 181.7\u00b0 (sd\u00a02.7\u00b0, 175\u00b0 to 185\u00b0) pre-operatively to 169.7\u00b0 (sd 2.4\u00b0, 164\u00b0 to 175\u00b0) at one year\u2019s follow-up (p\u00a0&lt; 0.001) and 169.6\u00b0 (sd 3.0\u00b0, 157\u00b0 to 179\u00b0) at the final follow-up (p\u00a0= 0.69 vs one year).<\/jats:p><jats:p>Opening-wedge HTO using a stable plate fixation system combined with a bone substitute is a reliable procedure that provides excellent results. Although this treatment might seem challenging for older patients, our results strongly suggest that the results are equally good.<\/jats:p><jats:p>Cite this article: Bone Joint J 2014;96-B:339\u201344.<\/jats:p>","DOI":"10.1302\/0301-620x.96b3.32525","type":"journal-article","created":{"date-parts":[[2014,3,3]],"date-time":"2014-03-03T16:28:58Z","timestamp":1393864138000},"page":"339-344","update-policy":"https:\/\/doi.org\/10.1302\/crossmark-policy","source":"Crossref","is-referenced-by-count":109,"title":["Five- to ten-year outcome following medial opening-wedge high tibial osteotomy with rigid plate fixation in combination with an artificial bone substitute"],"prefix":"10.1302","volume":"96-B","author":[{"given":"T.","family":"Saito","sequence":"first","affiliation":[{"name":"Yokohama City University Hospital, Department of Orthopaedic Surgery, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, 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