{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,26]],"date-time":"2026-09-26T04:50:24Z","timestamp":1790398224480,"version":"4.1.0"},"reference-count":37,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"1","content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2021,1,6]]},"abstract":"<jats:sec>\n                    <jats:title>Background:<\/jats:title>\n                    <jats:p>Posterior-stabilized and ultracongruent designs are 2 common examples of posterior cruciate ligament-substituting total knee arthroplasty (TKA) prostheses. There is a lack of evidence regarding joint perception differences between ultracongruent and posterior-stabilized TKA. The purpose of this study was to compare the postoperative knee stability, function, and joint perception between ultracongruent and posterior-stabilized TKA in the same patients in order to determine whether there was a difference based on design.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>This prospective, randomized controlled trial included 50 patients who underwent same-day bilateral TKA utilizing Persona (Zimmer Biomet) posterior-stabilized implants in 1 knee (posterior-stabilized group) and ultracongruent implants in the other knee (ultracongruent group). At 2 years postoperatively, patients were evaluated for knee stability, function, and joint perception. Postoperative static knee anteroposterior stability and femoral rollback were compared. Knee function was evaluated with use of the Knee Society Score and Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC). Joint perception was compared by evaluating noise generation, side preference, satisfaction, and the Forgotten Joint Score.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>The ultracongruent group had more knee anteroposterior laxity (4.5 mm compared with 1.8 mm in the posterior-stabilized group; p &lt; 0.001) and less femoral rollback (4.2 mm compared with 9.0 mm in the posterior-stabilized group; p &lt; 0.001). Knee Society Score and WOMAC scores were not significantly different between groups (all p &gt; 0.05). Although the ultracongruent group showed less noise generation than the posterior-stabilized group (18% compared with 38%, respectively; p = 0.026), there were no differences in side preference, satisfaction, or Forgotten Joint Score (all p &gt; 0.05).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions:<\/jats:title>\n                    <jats:p>Both groups had similar joint perception 2 years postoperatively, with obvious differences in noise generation and more sagittal laxity with less femoral rollback in the ultracongruent group.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Level of Evidence:<\/jats:title>\n                    <jats:p>\n                      Therapeutic\n                      <jats:underline>Level I<\/jats:underline>\n                      . See Instructions for Authors for a complete description of levels of evidence.\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.2106\/jbjs.20.00279","type":"journal-article","created":{"date-parts":[[2020,12,7]],"date-time":"2020-12-07T13:00:40Z","timestamp":1607346040000},"page":"44-52","update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":33,"title":["Comparison of Joint Perception Between Posterior-Stabilized and Ultracongruent Total Knee Arthroplasty in the Same Patient"],"prefix":"10.2106","volume":"103","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1374-9964","authenticated-orcid":false,"given":"Man Soo","family":"Kim","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Surgery, Seoul St. Mary\u2019s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7941-1587","authenticated-orcid":false,"given":"In Jun","family":"Koh","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Eunpyeong St. Mary\u2019s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7220-6938","authenticated-orcid":false,"given":"Chul Kyu","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Seoul St. Mary\u2019s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4118-3742","authenticated-orcid":false,"given":"Keun Young","family":"Choi","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Seoul St. Mary\u2019s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6355-9392","authenticated-orcid":false,"given":"Jin Hwa","family":"Jeon","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Seoul St. Mary\u2019s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5932-3934","authenticated-orcid":false,"given":"Yong","family":"In","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Seoul St. Mary\u2019s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"276","published-online":{"date-parts":[[2020,12,2]]},"reference":[{"issue":"2","key":"bib1-20250502","doi-asserted-by":"crossref","first-page":"277","DOI":"10.1016\/j.jbiomech.2004.02.027","article-title":"In vivo kinematic evaluation and design considerations related to high flexion in total knee arthroplasty","volume":"38","author":"Argenson","year":"2005","journal-title":"J Biomech."},{"issue":"12","key":"bib2-20250502","doi-asserted-by":"crossref","first-page":"2222","DOI":"10.1002\/jor.20306","article-title":"Femoral rollback of cruciate-retaining and posterior-stabilized total knee replacements: in vivo fluoroscopic analysis during activities of daily living","volume":"24","author":"Fantozzi","year":"2006","journal-title":"J Orthop Res."},{"issue":"3","key":"bib3-20250502","doi-asserted-by":"crossref","first-page":"180","DOI":"10.5792\/ksrr.16.047","article-title":"Early clinical outcomes of a new posteriorly stabilized total knee arthroplasty prosthesis: comparisons with two established prostheses","volume":"29","author":"Jain","year":"2017","journal-title":"Knee Surg Relat Res."},{"key":"bib4-20250502","first-page":"315","article-title":"Principles of condylar knee arthroplasty: issues evolving","volume":"42","author":"Vince","year":"1993","journal-title":"Instr Course Lect."},{"key":"bib5-20250502","doi-asserted-by":"crossref","first-page":"203","DOI":"10.1097\/00003086-198904000-00024","article-title":"The patellar clunk syndrome. 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