{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,20]],"date-time":"2026-10-20T16:11:57Z","timestamp":1792512717037,"version":"4.5.0"},"reference-count":44,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2025,5,26]],"date-time":"2025-05-26T00:00:00Z","timestamp":1748217600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["esskajournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Knee surg. sports traumatol. arthrosc."],"published-print":{"date-parts":[[2025,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>To evaluate long\u2010term outcomes of cemented, mobile\u2010bearing medial unicompartmental knee arthroplasty (UKA) in patients aged 60 or younger, focusing on implant survival, functional results, patient\u2010reported outcome measures (PROMs), and radiographic findings over &gt;10 years.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>This retrospective single\u2010centre study included 119 knees (102 patients). Implant survival was evaluated using Kaplan\u2013Meier analysis. PROMs included the Oxford Knee Score (OKS), American Knee Society Score (AKSS), UCLA Activity Score and Visual Analogue Scale (VAS). Assessments were performed preoperatively, at mid\u2010term (2\u201310 years), and at long\u2010term follow\u2010up (&gt;10 years). OKS and AKSS were analysed in relation to Patient Acceptable Symptom State (PASS) thresholds. Radiographs were graded using the Kellgren\u2013Lawrence classification to evaluate lateral osteoarthritis (LOA) progression.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The implant survival rate was 86.7% (95% CI: 78.5\u201391.9%) at 15 years, and 81.7% (95% CI: 71.4%\u201388.5%) at 17.5 years. Revision surgery was required in 18 knees (mean time to revision: 8.7 years), primarily due to progression of LOA. All PROMs improved significantly from baseline to the final follow\u2010up (mean: 16 years; <jats:italic>p<\/jats:italic>\u2009&lt;\u20090.0001). Although minor functional declines occurred between mid\u2010 and long\u2010term follow\u2010ups, these were not statistically significant (<jats:italic>p<\/jats:italic>\u2009&gt;\u20090.05), except for functional AKSS. At the final assessment, 96% of patients exceeded the PASS threshold for OKS, 84% for AKSS objective, and 80% for AKSS functional scores. Radiographic LOA progression was frequent but did not significantly impair functional outcomes.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Cemented mobile\u2010bearing medial UKA in patients aged\u2009\u226460 years demonstrated high long\u2010term implant survival and sustained functional benefit. Even in the presence of radiographic LOA progression, clinical outcomes remained excellent. UKA represents a durable and effective treatment for younger patients with isolated medial compartment osteoarthritis.<\/jats:p><\/jats:sec><jats:sec><jats:title>Level of Evidence<\/jats:title><jats:p>Level IV.<\/jats:p><\/jats:sec>","DOI":"10.1002\/ksa.12703","type":"journal-article","created":{"date-parts":[[2025,5,26]],"date-time":"2025-05-26T06:14:17Z","timestamp":1748240057000},"page":"3324-3332","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Cemented mobile\u2010bearing medial unicompartmental knee arthroplasty provides long\u2010term implant survival and sustained functional performance in young and active patients aged 60 or below"],"prefix":"10.1002","volume":"33","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9876-2083","authenticated-orcid":false,"given":"Kevin\u2010Arno","family":"Koch","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Surgery University Hospital of Heidelberg 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