{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,7]],"date-time":"2026-08-07T17:23:08Z","timestamp":1786123388969,"version":"build-2736575974"},"reference-count":27,"publisher":"Wiley","issue":"12","license":[{"start":{"date-parts":[[2023,9,28]],"date-time":"2023-09-28T00:00:00Z","timestamp":1695859200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2023,9,28]],"date-time":"2023-09-28T00:00:00Z","timestamp":1695859200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"},{"start":{"date-parts":[[2023,9,28]],"date-time":"2023-09-28T00:00:00Z","timestamp":1695859200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2023,9,28]],"date-time":"2023-09-28T00:00:00Z","timestamp":1695859200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"funder":[{"DOI":"10.13039\/100012630","name":"Zimmer Biomet","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100012630","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100000769","name":"University of Oxford","doi-asserted-by":"publisher","award":["ORTHO.CR.GK10.12"],"award-info":[{"award-number":["ORTHO.CR.GK10.12"]}],"id":[{"id":"10.13039\/501100000769","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100012630","name":"Zimmer Biomet","doi-asserted-by":"publisher","award":["ORTHO.CR.GK10.12"],"award-info":[{"award-number":["ORTHO.CR.GK10.12"]}],"id":[{"id":"10.13039\/100012630","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100000697","name":"Rhodes Scholarships","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100000697","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Knee surg. sports traumatol. arthrosc."],"published-print":{"date-parts":[[2023,12]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>Lateral osteoarthritis following medial unicompartmental knee replacement (UKR) is usually treated with total knee replacement, however, lateral UKR is a less invasive option that preserves a well\u2010functioning medial UKR. This study aimed to determine the 5\u2010year outcome of the cemented Fixed Lateral Oxford UKR (FLO) when used for the treatment of severe lateral disease after medial Oxford unicompartmental knee replacement.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\n                      Forty\u2010four knees with lateral bone\u2010on\u2010bone osteoarthritis (\n                      <jats:italic>n\u2009=\u2009<\/jats:italic>\n                      43) and avascular necrosis (\n                      <jats:italic>n\u2009=\u2009<\/jats:italic>\n                      1) treated with the FLO following medial Oxford UKR were followed up prospectively. The Oxford Knee Score (OKS) and Tegner Activity Score (TAS) were collected pre\u2010 and post\u2010operatively. Life\u2010table analysis was used to determine survival rates.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      The mean patient age at the time of FLO surgery was 74.4\u00a0years with a mean time of 12.1\u00a0years between the primary medial UKR and the conversion to a bi\u2010UKR with a FLO. Mean follow\u2010up of the FLO was 3.5\u00a0years. After FLO no intra\u2010operative or medical complications, re\u2010admissions, or mortality occurred. There was one reoperation in which a bearing was exchanged for a medial bearing dislocation. There were no revisions of the FLO, so the FLO survival rate at 5\u00a0years was 100% (24 at risk). The mean pre\u2010operative OKS was 22, which significantly (\n                      <jats:italic>p\u2009&lt;\u2009<\/jats:italic>\n                      0.0001) improved to a mean of 42, 42, and 40 at 1, 2, and 5\u00a0years, respectively. The median TAS had a non\u2010significant improvement from 2.5 (Range 0\u20138) pre\u2010operatively to 2 (Range 1\u20136) at 5\u00a0years postoperatively.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>The FLO is a reliable treatment for lateral osteoarthritis following medial UKR. At 5\u00a0years there was a 100% survival of the FLO with a mean OKS of 40.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Level of evidence<\/jats:title>\n                    <jats:p>IV, Prospective Case Series.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1007\/s00167-023-07573-y","type":"journal-article","created":{"date-parts":[[2023,9,28]],"date-time":"2023-09-28T10:01:54Z","timestamp":1695895314000},"page":"5407-5412","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Fixed lateral unicompartmental knee replacement is a reliable treatment for lateral compartment osteoarthritis after mobile\u2010bearing medial unicompartmental replacement"],"prefix":"10.1002","volume":"31","author":[{"given":"Joseph T.","family":"Lazzara","sequence":"first","affiliation":[{"name":"Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal Sciences (NDORMS) University of Oxford Oxford UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2641-428X","authenticated-orcid":false,"given":"Lachlan W.","family":"Arthur","sequence":"additional","affiliation":[{"name":"Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal Sciences (NDORMS) University of Oxford Oxford UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cathy","family":"Jenkins","sequence":"additional","affiliation":[{"name":"Nuffield Orthopaedic Centre Oxford University Hospitals NHS Foundation Trust Oxford UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christopher A. F.","family":"Dodd","sequence":"additional","affiliation":[{"name":"Nuffield Orthopaedic Centre Oxford University Hospitals NHS Foundation Trust Oxford UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stephen J.","family":"Mellon","sequence":"additional","affiliation":[{"name":"Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal Sciences (NDORMS) University of Oxford Oxford UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David W.","family":"Murray","sequence":"additional","affiliation":[{"name":"Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal Sciences (NDORMS) University of Oxford Oxford UK"},{"name":"Nuffield Orthopaedic Centre Oxford University Hospitals NHS Foundation Trust Oxford UK"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2023,9,28]]},"reference":[{"key":"e_1_2_12_2_1","doi-asserted-by":"publisher","DOI":"10.1186\/s13018\u2010021\u201002896\u20103"},{"key":"e_1_2_12_3_1","volume-title":"National joint registry 18th annual reports","author":"Ben\u2010Shlomo Y","year":"2021"},{"key":"e_1_2_12_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.knee.2019.12.005"},{"key":"e_1_2_12_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.knee.2003.06.001"},{"key":"e_1_2_12_6_1","doi-asserted-by":"publisher","DOI":"10.1302\/2046\u20103758.1011.BJR\u20102021\u20100151.R1"},{"key":"e_1_2_12_7_1","doi-asserted-by":"publisher","DOI":"10.23912\/978\u20101\u2010910158\u201045\u20106\u20101517"},{"key":"e_1_2_12_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/0968-0160(96)00208-6"},{"key":"e_1_2_12_9_1","unstructured":"JansenK BeckertM DeckardER Ziemba\u2010DavisM MeneghiniRMSatisfaction and functional outcomes in unicompartmental compared with total knee arthroplasty: radiographically matched cohort analysis.JB JS Open Access202010.2106\/JBJS.OA.20.00051332999637722600"},{"key":"e_1_2_12_10_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.knee.2018.12.007"},{"key":"e_1_2_12_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.arth.2005.04.017"},{"key":"e_1_2_12_12_1","doi-asserted-by":"publisher","DOI":"10.1302\/0301\u2010620X.102B8.BJJ\u20102019\u20101330.R2"},{"key":"e_1_2_12_13_1","doi-asserted-by":"publisher","DOI":"10.1302\/0301\u2010620X.95B9.31085"},{"key":"e_1_2_12_14_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(14)60419-0"},{"key":"e_1_2_12_15_1","doi-asserted-by":"publisher","DOI":"10.1007\/s43465\u2010022\u201000628\u20101"},{"key":"e_1_2_12_16_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00590\u2010018\u20102358\u20109"},{"key":"e_1_2_12_17_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.arth.2021.09.018"},{"key":"e_1_2_12_18_1","doi-asserted-by":"publisher","DOI":"10.1080\/17453674.2017.1367577"},{"key":"e_1_2_12_19_1","doi-asserted-by":"publisher","DOI":"10.1302\/0301\u2010620X.97B11.35634"},{"key":"e_1_2_12_20_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.knee.2009.10.007"},{"key":"e_1_2_12_21_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00167\u2010016\u20104075\u20104"},{"key":"e_1_2_12_22_1","doi-asserted-by":"publisher","DOI":"10.1302\/0301\u2010620X.92B4.22659"},{"key":"e_1_2_12_23_1","doi-asserted-by":"publisher","DOI":"10.1007\/s11999\u2010010\u20101506\u20102"},{"key":"e_1_2_12_24_1","doi-asserted-by":"publisher","DOI":"10.1302\/0301\u2010620X.94B10.29119"},{"key":"e_1_2_12_25_1","doi-asserted-by":"publisher","DOI":"10.1186\/s12891\u2010021\u201004185\u2010w"},{"key":"e_1_2_12_26_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00402\u2010020\u201003492\u20106"},{"key":"e_1_2_12_27_1","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.l352"},{"key":"e_1_2_12_28_1","volume-title":"Oxford fixed lateral partial knee surgical technique","author":"Zimmer B","year":"2014"}],"container-title":["Knee Surgery, Sports Traumatology, Arthroscopy"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/esskajournals.onlinelibrary.wiley.com\/doi\/pdf\/10.1007\/s00167-023-07573-y","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/article\/10.1007\/s00167-023-07573-y\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/esskajournals.onlinelibrary.wiley.com\/doi\/full-xml\/10.1007\/s00167-023-07573-y","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s00167-023-07573-y.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"},{"URL":"https:\/\/esskajournals.onlinelibrary.wiley.com\/doi\/pdf\/10.1007\/s00167-023-07573-y","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,8,7]],"date-time":"2026-08-07T14:39:38Z","timestamp":1786113578000},"score":1,"resource":{"primary":{"URL":"https:\/\/esskajournals.onlinelibrary.wiley.com\/doi\/10.1007\/s00167-023-07573-y"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,9,28]]},"references-count":27,"journal-issue":{"issue":"12","published-print":{"date-parts":[[2023,12]]}},"alternative-id":["10.1007\/s00167-023-07573-y"],"URL":"https:\/\/doi.org\/10.1007\/s00167-023-07573-y","archive":["Portico"],"relation":{},"ISSN":["0942-2056","1433-7347"],"issn-type":[{"value":"0942-2056","type":"print"},{"value":"1433-7347","type":"electronic"}],"subject":[],"published":{"date-parts":[[2023,9,28]]},"assertion":[{"value":"5 June 2023","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"3 September 2023","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"28 September 2023","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 author or one or more of the authors have received or will receive benefits for personal or professional use from a commercial party related directly or indirectly to the subject of this article. In addition, benefits have been or will be directed to a research fund, foundation, educational institution, or other non-profit organisation with which one or more of the authors are associated.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interest"}},{"value":"Ethical approval was sought from the local research\u00a0ethics\u00a0committee (Oxfordshire Research Ethics Committee C) with formal approval deemed unnecessary under the National Health Service research governance arrangements.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethical approval"}},{"value":"All patients underwent appropriate informed consent for inclusion in this study.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Informed consent"}}]}}