ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2012
Kinematics of a highly congruent mobile-bearing total knee prosthesis.
Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
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Who cites it
7 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Similar outcome after retention or sacrifice of the posterior cruciate ligament in total knee arthroplasty.Acta orthopaedica · 2015Pooled it
- Different intraoperative kinematics with comparable clinical outcomes of ultracongruent and posterior stabilized mobile-bearing total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2016Trial
- Saddle-shaped rotating knee prosthesis outperforms low contact stress knee: A short-term retrospective comparative study.Journal of experimental orthopaedics · 2024Article
- Posterior cruciate-retaining total knee arthroplasty exhibits small kinematic changes in the first postoperative year.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023Article
- Posterior-Stabilized Versus Cruciate-Retaining Prostheses for Total Knee Arthroplasty: An Overview of Systematic Reviews and Risk of Bias Considerations.Indian journal of orthopaedics · 2022Review
- External rotation of the femoral component decreases patellofemoral contact stress in total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2015Article
- Does total knee arthroplasty modify flexion axis of the knee?Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2014Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeLimited or absent axial rotation of the mobile insert of total knee prostheses could lead to high contact stresses and stresses at the bone-implant interface, which in turn might lead to implant loosening. The aim of this study was to assess knee kinematics and muscle activation and their possible change over time in patients with a highly congruent, mobile-bearing total knee prosthesis.
methodsA prospective series of 11 rheumatoid arthritis patients was included to participate in this fluoroscopic and EMG study; only 7 patients completed the study. Kinematic evaluations took place 7 months, 1 and 2 years post-operatively. Repeated measurements ANOVA and linear mixed-effects model for longitudinal data were used to compare the differences between the follow-ups.
resultsThere are no significant changes in axial rotations between follow-up moments for the femoral component as well as the mobile insert. The insert remained mobile and followed the femoral component from 0° until approximately 60° of knee flexion. Diverging and reversed axial rotations and translations were seen during the dynamic motions.
conclusionsKnee kinematics and muscle activation do not appear to change in the first 2 post-operative years. Reversed and divergent axial rotations with increasing knee flexion indicate that as soon as the congruency decreases, the femoral component is no longer forced in a certain position by the insert and moves to a self-imposed position. At lower knee flexion angles, the femoral component might be obstructed by the highly congruent insert and therefore might not be able to move freely. LEVEL OF EVIDENCE: Therapeutic study, Level IV.
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Registered trials
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