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Therefore, this study aimed to evaluate the learning curve and the clinical and radiological outcomes during the early implementation of medial unicompartmental knee arthroplasty.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Materials and methods<\/jats:title>\n                    <jats:p>The first 200 medial unicompartmental knee arthroplasty procedures performed by two arthroplasty surgeons were analyzed to assess the relationship between outcomes and the cumulative number of cases. The primary outcome was the learning curve for the duration of surgery, while secondary outcomes included the Oxford Knee Score, the Forgotten Joint Score, and the Activity and Participation Questionnaire, which were assessed at 3, 12, and 24 months postoperatively. Implant survival and positioning were evaluated at the final follow-up.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Cumulative summation analysis showed a data-driven reduction in surgical duration after 55 cases. Median Oxford Knee Score was 41 (IQR 34\u201344) at 12 months and 42 (IQR 35\u201345) at 24 months. Implant survival at 5 years was 97.4% (95% CI: 95.1\u201399.7). Radiographically, 86.5% of patients had tibial implant valgus\/varus within 5\u00b0 of neutral, and no tibial implant overhang exceeded 2\u00a0mm.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Medial unicompartmental knee arthroplasty was associated with favorable clinical outcomes during early implementation. Surgical duration indicated a learning curve over 55 cases. Patient-reported outcome measures remained stable, showing reliable outcomes regardless of the learning phase. Surgical precision was maintained throughout, indicating proficient surgical outcomes even during the early phase.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1007\/s00402-026-06229-z","type":"journal-article","created":{"date-parts":[[2026,2,26]],"date-time":"2026-02-26T06:00:17Z","timestamp":1772085617000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Starting up a cementless Oxford medial unicompartmental knee arthroplasty practice: a prospective cohort study of 200 knees"],"prefix":"10.1007","volume":"146","author":[{"given":"Annika","family":"Gottholt Hansen","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kristine","family":"Ifigenia Bunyoz","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cecilie","family":"Henkel","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mette","family":"Mikkelsen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kirill","family":"Gromov","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anders","family":"Troelsen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2026,2,26]]},"reference":[{"key":"6229_CR1","doi-asserted-by":"publisher","first-page":"1672","DOI":"10.1016\/S0140-6736(18)32344-4","volume":"392","author":"AJ Price","year":"2018","unstructured":"Price AJ, Alvand A, Troelsen A, Katz JN, Hooper G, Gray A et al (2018) Knee replacement. 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