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September 17, 2025Knee Surgery and Related ResearchOpen Access

Effect of the kinematic retaining design on knee kinematics in total knee arthroplasty: A cadaveric study using a navigation system

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Authors

TKTomofumi KinoshitaEhime UniversityKHKazunori HinoEhime UniversityTKTatsuhiko KutsunaEhime University

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Overview

Cadaveric study evaluated knee kinematics with different implant designs, suggesting KR may mimic native motion.

Key Points

  • The kinematic retaining (KR) design showed the greatest mean femoral external rotation during flexion.
  • Significant reduction in anteroposterior translation of the lateral condyle observed in cruciate retaining and medial congruent groups.
  • Six of nine knees in the KR group exhibited medial pivot motion, suggesting potentially improved function.
  • Findings indicate that KR kinematics may approximate native knee motion, though further validation is needed.

Cite This Study

Kinoshita et al. (2025) studied this question.

synapsesocial.com/papers/68d4566c31b076d99fa5bb27https://doi.org/10.1186/s43019-025-00290-5
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Also Consider

Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Femoral rollback at high-flexion during squatting is related to the improvement of sports activities after bicruciate-stabilized total knee arthroplasty: an observational study2022 · 5 citations
  2. 2Can TKA design affect the clinical outcome? Comparison between two guided‐motion systems2013 · 74 citations
  3. 3Kinematics and center of axial rotation during walking after medial pivot type total knee arthroplasty2020 · 19 citations
  4. 4Postoperative Stiffening after Bicruciate-Retaining Total Knee Arthroplasty2017 · 17 citations