{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,19]],"date-time":"2026-09-19T19:03:01Z","timestamp":1789844581521,"version":"4.0.1"},"reference-count":24,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2025,11,3]],"date-time":"2025-11-03T00:00:00Z","timestamp":1762128000000},"content-version":"vor","delay-in-days":33,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,10,1]],"date-time":"2025-10-01T00:00:00Z","timestamp":1759276800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["esskajournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J. exp. orthop."],"published-print":{"date-parts":[[2025,10]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>Accurate femoral component (FC) rotation is critical in total knee arthroplasty (TKA). Residual posterior condylar cartilage is difficult to assess intraoperatively and may bias the posterior condylar axis. Quantitative data remain scarce, particularly for lateral compartment osteoarthritis, and the assumption of a uniform 2\u2010mm cartilage thickness has rarely been tested.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\n                      Twenty\u2010five valgus knees in 22 Asian women undergoing primary TKA were analysed; 31 previously measured female varus knees, assessed with the same protocol, served as controls. After posterior femoral resection, resected condyles were radiographed perpendicular to the cut. Medial (\n                      <jats:italic>m<\/jats:italic>\n                      ) and lateral (\n                      <jats:italic>l<\/jats:italic>\n                      ) cartilage thicknesses were measured with magnification adjustment. The thickness difference (\n                      <jats:italic>C<\/jats:italic>\n                      <jats:sub>diff<\/jats:sub>\n                      ) was regressed against theoretical rotational deviation (\n                      <jats:italic>\u03b8<\/jats:italic>\n                      ). The slope and intercept were compared between valgus and varus cohorts. The proportion of knees within a prespecified \u20182\u2009mm range\u2019 (1.5\u20132.5\u2009mm) was calculated.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      FC rotation shifted 1.31\u00b0 per 1\u2010mm cartilage asymmetry (95% confidence interval [CI]: 1.28\u20131.35;\n                      <jats:italic>R<\/jats:italic>\n                      <jats:sup>2<\/jats:sup>\n                      \u2009=\u20090.99). Slopes were similar in varus and valgus cohorts. The mean\n                      <jats:italic>\u03b8<\/jats:italic>\n                      was 1.6\u00b0\u2009\u00b1\u20091.3\u00b0, with values up to 4\u00b0. Thin cartilage (&lt;1.5\u2009mm) was more frequent in varus than valgus (42% vs. 24%), not significant. Overall, \u224852% of knees fell within the \u20182\u2009mm range\u2019 (1.5\u20132.5\u2009mm).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Residual posterior condylar cartilage directly affects FC rotation in TKA. In Asian women, each 1\u2010mm medial\u2013lateral asymmetry produced \u22481.3\u00b0 of rotational error irrespective of deformity pattern. Only half of the knees approximated 2\u2009mm, indicating that a fixed 2\u2010mm correction is not universally applicable.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Level of Evidence<\/jats:title>\n                    <jats:p>Level III.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/jeo2.70486","type":"journal-article","created":{"date-parts":[[2025,11,3]],"date-time":"2025-11-03T20:28:50Z","timestamp":1762201730000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Posterior condylar cartilage thickness determines accuracy of femoral component rotation during total knee arthroplasty in valgus knees: Comparison with varus knees"],"prefix":"10.1002","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1896-9138","authenticated-orcid":false,"given":"Teruyuki","family":"Miyasaka","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Surgery Jikei University School of Medicine Tokyo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Taiki","family":"Neyatani","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery Jikei University School of Medicine Tokyo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Toshiyuki","family":"Omori","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery Jikei University School of Medicine Tokyo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tomohiro","family":"Kayama","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery Jikei University School of Medicine Tokyo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daisuke","family":"Kubota","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery Jikei University School of Medicine Tokyo 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