{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,2]],"date-time":"2026-10-02T03:53:36Z","timestamp":1790913216314,"version":"4.1.0"},"reference-count":25,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2026,8,19]],"date-time":"2026-08-19T00:00:00Z","timestamp":1787097600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,8,19]],"date-time":"2026-08-19T00:00:00Z","timestamp":1787097600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Orthopaedic Surgery"],"published-print":{"date-parts":[[2026,10]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Aims<\/jats:title>\n                    <jats:p>Although total knee arthroplasty (TKA) remains the standard treatment for advanced knee osteoarthritis (OA), it often compromises joint proprioception and natural kinematics. Bicompartmental unicompartmental knee arthroplasty (bi\u2010UKA), which preserves both the cruciate ligaments and patellofemoral joint, offers a joint\u2010preserving alternative for selected patients with bicompartmental OA. This study aimed to compare the early\u2010 and mid\u2010term outcomes of bi\u2010UKA and TKA.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>This single\u2010center, prospective, real\u2010world observational study included patients with knee osteoarthritis who were treated between January and October 2022. Eligible patients underwent either bi\u2010UKA or TKA according to routine clinical decision\u2010making and patient preference. Functional outcomes were assessed using the Knee Society Score (KSS), Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), range of motion (ROM), timed up and go test (TUG), and 2\u2010min walk test over a 2\u2010year follow\u2010up period. Preference\u2010related selection bias was reduced using inverse probability of treatment weighting (IPTW) based on a five\u2010item preoperative preference assessment tool, and longitudinal outcomes were analyzed using IPTW\u2010weighted mixed\u2010effects models.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Eighty patients were included in this study (bi\u2010UKA:\n                      <jats:italic>n<\/jats:italic>\n                      \u2009=\u200935, TKA:\n                      <jats:italic>n<\/jats:italic>\n                      \u2009=\u200945). After inverse probability of treatment weighting (IPTW) adjustment, the bi\u2010UKA group showed more favorable early outcomes: higher 1\u2010month KSS functional scores (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.001); better WOMAC scores at 1, 6, and 12\u2009months (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.05); greater ROM throughout follow\u2010up (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.0001); shorter TUG times; and longer 2MWT distances at early time points. The Forgotten Joint Score (FJS) scores at 1 and 2\u2009years also favored bi\u2010UKA, indicating greater satisfaction.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Bi\u2010UKA was associated with more favorable early functional recovery. By preserving the key anatomical structures and enabling more physiological motion, bi\u2010UKA may be a feasible alternative in selected patients.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/os.70406","type":"journal-article","created":{"date-parts":[[2026,8,19]],"date-time":"2026-08-19T13:49:51Z","timestamp":1787147391000},"page":"2101-2117","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Rethinking Knee Arthroplasty: Bicompartmental Unicompartmental Knee Arthroplasty as a Biomechanically Personalized, Function\u2010Preserving Solution for Knee Osteoarthritis"],"prefix":"10.1111","volume":"18","author":[{"ORCID":"https:\/\/orcid.org\/0009-0004-1271-2790","authenticated-orcid":false,"given":"Yishu","family":"Liu","sequence":"first","affiliation":[{"name":"The Fourth Affiliated Hospital of Harbin Medical University  Harbin Heilongjiang Province China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6645-8765","authenticated-orcid":false,"given":"Yong","family":"Zhou","sequence":"additional","affiliation":[{"name":"The Fourth Affiliated Hospital of Harbin Medical University  Harbin Heilongjiang Province China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xi","family":"Zhang","sequence":"additional","affiliation":[{"name":"The Fourth Affiliated Hospital of Harbin Medical University  Harbin Heilongjiang Province China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shengyuan","family":"Yu","sequence":"additional","affiliation":[{"name":"The Fourth Affiliated Hospital of Harbin Medical University  Harbin Heilongjiang Province China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bing","family":"Xue","sequence":"additional","affiliation":[{"name":"The Fourth Affiliated Hospital of Harbin Medical University  Harbin Heilongjiang Province China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xuefeng","family":"Liu","sequence":"additional","affiliation":[{"name":"The Fourth Affiliated Hospital of Harbin Medical University  Harbin Heilongjiang Province China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,8,19]]},"reference":[{"key":"e_1_2_12_2_1","doi-asserted-by":"publisher","DOI":"10.2741\/4330"},{"key":"e_1_2_12_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.arth.2012.03.022"},{"issue":"4","key":"e_1_2_12_4_1","first-page":"432","article-title":"Usage of Unicompartmental Knee Arthroplasty","volume":"100","author":"Murray D. 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