{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,19]],"date-time":"2026-08-19T18:04:36Z","timestamp":1787162676041,"version":"build-2736575974"},"reference-count":34,"publisher":"Wiley","issue":"12","license":[{"start":{"date-parts":[[2020,2,13]],"date-time":"2020-02-13T00:00:00Z","timestamp":1581552000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2020,2,13]],"date-time":"2020-02-13T00:00:00Z","timestamp":1581552000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/www.springer.com\/tdm"},{"start":{"date-parts":[[2020,2,13]],"date-time":"2020-02-13T00:00:00Z","timestamp":1581552000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/www.springer.com\/tdm"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Knee surg. sports traumatol. arthrosc."],"published-print":{"date-parts":[[2020,12]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>Modern total knee arthroplasty (TKA) systems are designed to reproduce the normal knee kinematics and improve patient outcome. The authors compared two different third\u2010generation medial pivot TKA implants, having a single\u2010radius or a J\u2010curve design in their sagittal plane, hypothesizing no clinical differences.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Two cohorts of 50 patients who underwent primary TKA were first preoperatively matched by sex, deformity, body mass index (BMI), Oxford Knee Score (OKS), Knee society score (KSS) and range of motion (ROM) and then statistically analyzed at a minimum follow\u2010up (FU) of 2 years. An identical surgical technique, which aimed to reproduce a slightly tighter medial than lateral compartment, was used in all knees.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>At a minimum follow\u2010up of 2 years (range 24\u201334\u00a0months) there were no statistically significant differences in OKS and KSS between the two implant groups. The final ROM differed statistically between the two groups: the average maximum active flexion was 123\u00b0 in the J\u2010curve femoral design group with an adapted \u201cmedially\u2010congruent\u201d polyethylene insert, and 116\u00b0 in the single radius femoral design with a medial \u201cball\u2010in\u2010socket\u201d articulation.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>No clinical and radiological differences were found when the two cohorts of patients were compared. This study showed that the implant design played a minor role in the final outcome as opposed to a precise surgical technique.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Level of evidence<\/jats:title>\n                    <jats:p>Retrospective case\u2010control study, Level III.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1007\/s00167-020-05854-4","type":"journal-article","created":{"date-parts":[[2020,2,13]],"date-time":"2020-02-13T07:02:37Z","timestamp":1581577357000},"page":"3949-3954","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["No clinical differences at the 2\u2010year follow\u2010up between single radius and J\u2010curve medial pivot total knee arthroplasty in the treatment of neutral or varus knees"],"prefix":"10.1002","volume":"28","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4752-8027","authenticated-orcid":false,"given":"Pier Francesco","family":"Indelli","sequence":"first","affiliation":[{"name":"<!--<label>1<\/label>--> Department of Orthopaedic Surgery Stanford University Stanford USA"},{"name":"<!--<label>2<\/label>--> Palo Alto Veterans Affairs Health Care System (PAVAHCS) Palo Alto USA"},{"name":"<!--<label>4<\/label>--> Palo Alto Veterans Affairs Health Care System (PAVAHCS), Department of Veterans Affairs 3801 Miranda Ave 94304 Palo Alto CA USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Federica","family":"Morello","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> Department of Orthopaedic Surgery Stanford University Stanford USA"},{"name":"<!--<label>2<\/label>--> Palo Alto Veterans Affairs Health Care System (PAVAHCS) Palo Alto 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