Evidence map›Paper›PMID 28656456›Full record

ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2018

Modifications of femoral component design in multi-radius total knee arthroplasty lead to higher lateral posterior femoro-tibial translation.

Tilman Pfitzner, Philippe Moewis, Patrick Stein, Heide Boeth, Adam Trepczynski, Philipp von Roth, Georg N Duda

Abstract read
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Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
4.5field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

21 citing papers in PubMed, 48 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Total knee replacement designs have differing stability under novel robotic testing method in vitro.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2025
    Article
  5. Beyond the coronal plane in robotic total knee arthroplasty-Part 2: Combined flexion does not affect outcomes.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2025
    Article
  6. Evaluation of a novel robotic testing method for stability and kinematics of total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2025
    Article
  7. Observational
  8. Exploration of the Advanced VIVOBioengineering (Basel, Switzerland) · 2024
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  15. Review
  16. Article
  17. New design total knee arthroplasty shows medial pivoting movement under weight-bearing conditions.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2019
    Article
  18. Modern cemented total knee arthroplasty design shows a higher incidence of radiolucent lines compared to its predecessor.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2019
    Article
  19. Knee implant kinematics are task-dependent.Journal of the Royal Society, Interface · 2019
    Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 1 country.

Tilman PfitznerCenter for Muskuloskeletal Surgery, Orthopaedic Department, Charité - Universitätsmedizin Berlin, Berlin, Germany.
Philippe MoewisJulius Wolff Institute, Charité - Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany. philippe.moewis@charite.de.ORCID http://orcid.org/0000-0002-0957-6300
Patrick SteinCenter for Muskuloskeletal Surgery, Orthopaedic Department, Charité - Universitätsmedizin Berlin, Berlin, Germany.
Heide BoethJulius Wolff Institute, Charité - Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany.
Adam TrepczynskiJulius Wolff Institute, Charité - Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany.
Philipp von RothCenter for Muskuloskeletal Surgery, Orthopaedic Department, Charité - Universitätsmedizin Berlin, Berlin, Germany.
Georg N DudaJulius Wolff Institute, Charité - Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany.
Berlin Institute of Health at Charité - Universitätsmedizin Berlin · DECharité - Universitätsmedizin Berlin · DE

Funding

BMBF OVERLOAD-PrevOP 01EC1408ADepuy Synthes IIS2013009EFRE OrthoLoadLab 16409608
6 · The paper itself

Abstract

purposeAs the aims of changes in total knee arthroplasty (TKA) designs are to reinstate more natural kinematics, the current study evaluated the in vivo kinematics in patients who underwent a cruciate retaining gradually changing femoral radius ("G-CURVE") against a cruciate retaining conventional changing femoral radius ("J-CURVE") geometry TKA design. The hypothesis of the study is that the G-CURVE design would allow a substantial increase in the femoral rollback compared to the J-CURVE design.

methodsRetrospective study design. Thirty patients were included (G-CURVE, n = 20; J-CURVE, n = 10). Single-plane fluoroscopic analysis and marker-based motion capture gait analysis was performed to analyse dynamic tibiofemoral motion during weight-bearing and unloaded activities at 24 month after index surgery.

resultsThe analysis of the medial and lateral points on the tibia plateau during the unloaded flexion-extension and the weight-bearing lunge activities revealed a significant difference in femoral rollback in G-CURVE TKA above 60° (p = 0.001) and 30° (p = 0.02) of knee flexion, respectively. Moreover, the lateral condyle of the G-CURVE showed a higher extent of femoral rollback while the lateral condyle of the J-CURVE rolled forward.

conclusionAt 2 years post-operative, the G-CURVE TKA showed significant differences in femoro-tibial translation in comparison with the J-CURVE system, in vivo. The G-CURVE resulted in an increased lateral rollback and simultaneously in an elimination of the paradoxical medial roll-forward present in the J-CURVE design. Moreover, knee kinematics analysis showed significant differences between unloaded and weight-bearing conditions revealing the impact of load and muscle force. The analysis conducted in this study contributes to further understand the principal movement characteristics in widely used older designs in comparison with recently developed concepts to get a better overview on their potential benefits on in vivo kinematics. LEVEL OF EVIDENCE: III.

Indexed as

AgedArthroplasty, Replacement, KneeBiomechanical PhenomenaFemaleFemurFluoroscopyHumansImaging, Three-DimensionalKnee JointKnee ProsthesisMaleMiddle AgedOsteoarthritis, KneeProsthesis DesignRange of Motion, ArticularRetrospective StudiesCruciate retainingFemoral rollbackFluoroscopyGait analysisJ-CURVEKnee kinematicsTotal knee arthroplasty

Identifiers

PMID28656456
OpenAlexW2733074920

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.