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    <Identifier>26dkou145</Identifier>
    <IdentifierDoi>10.3205/26dkou145</IdentifierDoi>
    <IdentifierUrn>urn:nbn:de:0183-26dkou1459</IdentifierUrn>
    <ArticleType>Meeting Abstract</ArticleType>
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      <Title language="en">Individualised total knee arthroplasty demonstrates 99.4&#37; survival at 3 to 5 years</Title>
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        <PersonNames>
          <Lastname>Tibesku</Lastname>
          <LastnameHeading>Tibesku</LastnameHeading>
          <Firstname>Carsten</Firstname>
          <Initials>C</Initials>
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          <Affiliation>KniePraxis Prof. Dr. Tibesku, Straubing, Deutschland</Affiliation>
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      <Creator>
        <PersonNames>
          <Lastname>Ait Si Selmi</Lastname>
          <LastnameHeading>Ait Si Selmi</LastnameHeading>
          <Firstname>Tarik</Firstname>
          <Initials>T</Initials>
        </PersonNames>
        <Address>
          <Affiliation>Centre Orthop&#233;dique Santy, Lyon, Frankreich</Affiliation>
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      <Creator>
        <PersonNames>
          <Lastname>M&#252;ller</Lastname>
          <LastnameHeading>M&#252;ller</LastnameHeading>
          <Firstname>Jacobus</Firstname>
          <Initials>J</Initials>
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        <Address>
          <Affiliation>ReSurg, Nyon, Schweiz</Affiliation>
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          <Lastname>Saffarini</Lastname>
          <LastnameHeading>Saffarini</LastnameHeading>
          <Firstname>Mo</Firstname>
          <Initials>M</Initials>
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        <Address>
          <Affiliation>ReSurg, Nyon, Schweiz</Affiliation>
        </Address>
        <Creatorrole corresponding="no" presenting="no">author</Creatorrole>
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          <Lastname>Bonnin</Lastname>
          <LastnameHeading>Bonnin</LastnameHeading>
          <Firstname>Michel</Firstname>
          <Initials>M</Initials>
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        <Address>
          <Affiliation>Centre Orthop&#233;dique Santy, Lyon, Frankreich</Affiliation>
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          <Corporatename>German Medical Science GMS Publishing House</Corporatename>
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        <Address>D&#252;sseldorf</Address>
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    <SubjectGroup>
      <SubjectheadingDDB>610</SubjectheadingDDB>
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    <DatePublishedList>
     <DatePublished>20261020</DatePublished>
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    <Language>engl</Language>
    <License license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/4.0/">
      <AltText language="en">This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 License.</AltText>
      <AltText language="de">Dieser Artikel ist ein Open-Access-Artikel und steht unter den Lizenzbedingungen der Creative Commons Attribution 4.0 License (Namensnennung).</AltText>
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      <Meeting>
        <MeetingId>M0659</MeetingId>
        <MeetingSequence>145</MeetingSequence>
        <MeetingCorporation>Deutsche Gesellschaft f&#252;r Orthop&#228;die und Unfallchirurgie</MeetingCorporation>
        <MeetingCorporation>Deutsche Gesellschaft f&#252;r Orthop&#228;die und Orthop&#228;dische Chirurgie</MeetingCorporation>
        <MeetingCorporation>Deutsche Gesellschaft f&#252;r Unfallchirurgie</MeetingCorporation>
        <MeetingCorporation>Berufsverband f&#252;r Orthop&#228;die und Unfallchirurgie</MeetingCorporation>
        <MeetingName></MeetingName>
        <MeetingTitle>Deutscher Kongress f&#252;r Orthop&#228;die und Unfallchirurgie (DKOU 2026)</MeetingTitle>
        <MeetingSession>Abstracts &#124; Robotik und technologische Innovationen in der Knieendoprothetik</MeetingSession>
        <MeetingCity>Berlin</MeetingCity>
        <MeetingDate>
          <DateFrom>20261020</DateFrom>
          <DateTo>20261023</DateTo>
        </MeetingDate>
      </Meeting>
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    <ArticleNo>DKOU26&#95;Abs&#95;2093</ArticleNo>
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      <MainHeadline>Text</MainHeadline><Pgraph><Mark1>Objectives and questions: </Mark1>The purpose of this multicentre observational study is to evaluate implant survival and patient-reported outcome measures (PROMs) at 3&#8211;5 years following individualised total knee arthroplasty (TKA).</Pgraph><Pgraph><Mark1>Material and methods: </Mark1>A consecutive series of 426 patients (434 knees) underwent CT-based, posterior-stabilised, cemented, individualised TKA between December 2018 and August 2020. After excluding 73 patients without informed consent, 353 patients (361 knees) were included for survival analysis. A further 74 were excluded (revised &#61; 2, deceased &#61; 11, inadequate follow-up &#61; 61), resulting in a final cohort of 279 patients (287 knees) for PROMs assessment. Implant survival was evaluated using the Kaplan&#8211;Meier (KM) method, with revision of any component for any reason as the endpoint at 2- and 3-year follow-ups. Patients completed pre and postoperative questionnaires of the Oxford knee score (OKS) and the forgotten joint score (FJS), and also rated their level of satisfaction on a 4-level Likert scale. The proportion of patients who achieved a patient acceptable symptom state (PASS) was estimated according to the threshold of 30 for OKS and 38 for FJS.</Pgraph><Pgraph><Mark1>Results: </Mark1>Considering revision for any reason as endpoint, the survival according to the KM method was 99.4&#37; (95&#37;C.I. 98.6&#37;&#8211;100.0&#37;) at both 2- and 3-year follow-up. The OKS improved from 22.2 &#177; 8.4 to 40.6 &#177; 7.6, and 244 knees (85&#37;) achieved the PASS. The FJS improved from 16.7 &#177; 14.6 to 68.5 &#177; 27.7, and 233 (81&#37;) achieved the PASS. Out of the 254 knees with their rated level of satisfaction, 250 (98.4&#37;) were either satisfied or very satisfied.</Pgraph><Pgraph><Mark1>Discussion and conclusions: </Mark1>At 3 to 5 years&#8217; follow-up, individualised TKA demonstrated excellent implant survival (99.4&#37;), as well as high patient satisfaction, both considering and disregarding non-respondents (87.1&#37; and 98.4&#37; respectively). The results are promising and warrant continued follow-up to evaluate long-term results.</Pgraph></TextBlock>
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