{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T21:14:52Z","timestamp":1777929292734,"version":"3.51.4"},"reference-count":33,"publisher":"SAGE Publications","issue":"1","license":[{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"},{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["J Orthop Surg (Hong Kong)"],"published-print":{"date-parts":[[2026,1]]},"abstract":"<jats:sec>\n                    <jats:title>Aims<\/jats:title>\n                    <jats:p>This study aims to evaluate the long-term durability of a unicompartmental knee arthroplasty (UKA) implant using a fixed-bearing all-polyethylene tibial tray with a Cobalt-Chromium (Co-Cr) femoral condyle, stratified by patient age. It also aims to compare implant survivorship between inlay and onlay tibial implantation techniques.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\n                      Data from the New Zealand Joint Registry (NZJR) was used to evaluate survival of Smith &amp; Nephew Genesis II\n                      <jats:sup>\u00ae<\/jats:sup>\n                      UKA performed between February 2000 and December 2011 in which two different tibial implant techniques (inlay and onlay) were used. The primary endpoint was revision surgery.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      At a minimum follow-up of 10\u00a0years, 57 revisions were performed at an average of 6.6\u00a0years from index surgery. The revision rate per 100 component years was 1.29 (CI: 0.97 \u2013 1.66), with a significant difference between the over-75\u00a0years cohort compared with the under-65 cohort, in favour of the older cohort (\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      &lt; 0.05). There was a significant difference in survival between inlay and onlay techniques, in favour of the inlay technique (\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      &lt; 0.05).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Fixed-bearing all-polyethylene tibial UKA show acceptable outcomes at an average 12-year follow-up, especially in elderly patients and use of inlay tibial tray implantation technique.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/10225536261416586","type":"journal-article","created":{"date-parts":[[2026,1,16]],"date-time":"2026-01-16T06:31:12Z","timestamp":1768545072000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Outcome of a Fixed-Bearing all-polyethylene unicompartmental tibial tray: A 12-year Joint Registry Follow-Up study"],"prefix":"10.1177","volume":"34","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1740-4071","authenticated-orcid":false,"given":"Katarina","family":"Sim","sequence":"first","affiliation":[{"name":"Taranaki Base Hospital"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Simon","family":"Hadlow","sequence":"additional","affiliation":[{"name":"Taranaki Base Hospital"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2026,1,15]]},"reference":[{"key":"e_1_3_3_2_2","doi-asserted-by":"publisher","DOI":"10.1136\/jisakos-2016-000102"},{"key":"e_1_3_3_3_2","unstructured":"McKie J Willis J Frampton C et al. NEW ZEALAND JOINT REGISTRY 25-Year report 2024. https:\/\/www.nzoa.org.nz\/nzoa-joint-registry"},{"key":"e_1_3_3_4_2","doi-asserted-by":"publisher","DOI":"10.1302\/2058-5241.3.170048"},{"issue":"2","key":"e_1_3_3_5_2","first-page":"45","article-title":"Unicompartmental knee replacement: a historical overview","volume":"1","author":"Bruni D","year":"2013","unstructured":"Bruni D, Iacono F, Akkawi I, et al. Unicompartmental knee replacement: a historical overview. Joints 2013; 1(2): 45\u201347.","journal-title":"Joints"},{"key":"e_1_3_3_6_2","doi-asserted-by":"publisher","DOI":"10.1055\/s-0038-1625961"},{"key":"e_1_3_3_7_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.arth.2012.03.022"},{"key":"e_1_3_3_8_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-020-06327-4"},{"key":"e_1_3_3_9_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-015-3868-1"},{"key":"e_1_3_3_10_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.arth.2016.11.034"},{"key":"e_1_3_3_11_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.knee.2012.10.019"},{"key":"e_1_3_3_12_2","doi-asserted-by":"publisher","DOI":"10.1055\/s-0038-1677506"},{"key":"e_1_3_3_13_2","doi-asserted-by":"publisher","DOI":"10.1055\/s-0031-1280873"},{"key":"e_1_3_3_14_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-020-06247-3"},{"key":"e_1_3_3_15_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.knee.2020.02.018"},{"key":"e_1_3_3_16_2","unstructured":"Gomberg B Marullo M Leal-Blanquet J et al. European society of sports traumatology knee surgery and arthroscopy unicompartmental knee arthroplasty manual 2023."},{"key":"e_1_3_3_17_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.otsr.2008.04.001"},{"key":"e_1_3_3_18_2","doi-asserted-by":"publisher","DOI":"10.1111\/ans.16385"},{"key":"e_1_3_3_19_2","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.97B11.35551"},{"key":"e_1_3_3_20_2","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.104B2.BJJ-2021-0890.R1"},{"key":"e_1_3_3_21_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00402-021-03827-x"},{"key":"e_1_3_3_22_2","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.K.00791"},{"key":"e_1_3_3_23_2","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.92B4.22659"},{"key":"e_1_3_3_24_2","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.104B6.BJJ-2021-1744.R1"},{"key":"e_1_3_3_25_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.knee.2023.09.001"},{"key":"e_1_3_3_26_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.knee.2014.04.012"},{"key":"e_1_3_3_27_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.arth.2014.03.053"},{"key":"e_1_3_3_28_2","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.O.00499"},{"key":"e_1_3_3_29_2","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.91B1.20899"},{"key":"e_1_3_3_30_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.arth.2015.11.030"},{"key":"e_1_3_3_31_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00402-016-2515-8"},{"key":"e_1_3_3_32_2","doi-asserted-by":"publisher","DOI":"10.1111\/ans.19035"},{"key":"e_1_3_3_33_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-014-3361-2"},{"key":"e_1_3_3_34_2","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.106B9.BJJ-2024-0075.R1"}],"container-title":["Journal of Orthopaedic Surgery"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/10225536261416586","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/10225536261416586","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/10225536261416586","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T23:33:08Z","timestamp":1777678388000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/10225536261416586"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,1]]},"references-count":33,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2026,1]]}},"alternative-id":["10.1177\/10225536261416586"],"URL":"https:\/\/doi.org\/10.1177\/10225536261416586","relation":{},"ISSN":["1022-5536","2309-4990"],"issn-type":[{"value":"1022-5536","type":"print"},{"value":"2309-4990","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,1]]},"article-number":"10225536261416586"}}