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

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

doi:10.1007/s00167-017-4622-7

Cited by 38 publications

(39 citation statements)

References 44 publications

(64 reference statements)

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“…Sensitivity analyses confirmed that hospital LOS was shorter among comparator device recipients. Although it is beyond the scope of this study to determine the exact reason for the decreased length of stay, the comparator device was designed to improve mid flexion stability [23], patellofemoral tracking [5,9e11] and has been shown to have improvements in PROMs on a broad spectrum of measures at 1 and 2 years [8]. It is possible that these features have contributed to patients mobilizing more rapidly and with greater confidence, potentially leading to the reduced length of stay demonstrated in this study.…”

Section: Discussionmentioning

confidence: 99%

Comparative Analysis Investigating the Impact of Implant Design on Hospital Length of Stay and Discharge Destination in a Dutch Hospital With an Established Enhanced Recovery Program

Meermans

Galvain

Wigham

et al. 2020

The Journal of Arthroplasty

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Section: Discussionmentioning

confidence: 99%

Comparative Analysis Investigating the Impact of Implant Design on Hospital Length of Stay and Discharge Destination in a Dutch Hospital With an Established Enhanced Recovery Program

Meermans

Galvain

Wigham

et al. 2020

The Journal of Arthroplasty

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“…29 A more recent in vivo study has shown improved lateral roll-back and eliminated paradoxical medial roll-forward compared with the PFC Sigma. 30 This implant has also demonstrated a shorter length of stay and decreased likelihood of requiring a skilled nursing facility on discharge, thus reducing overall hospital costs. 31 Previous studies have shown improved patellofemoral symptoms and crepitus with the ATTUNE compared with the PFC Sigma, [32][33][34][35] although little difference in clinical outcome or satisfaction.…”

Section: Discussionmentioning

confidence: 99%

A New Total Knee Arthroplasty Design Has Significantly Better Early Implant Survivorship than a Previous Gold-Standard Design—A Retrospective Analysis of 1,000 Cases

2019

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This study examined whether a new total knee arthroplasty (TKA) prosthesis improved implant survivorship and reoperation rates compared with a gold-standard, established TKA. A retrospective analysis of the first 500 consecutive new TKAs was compared with a consecutive series of the last 500 currently available TKAs performed by a single senior surgeon in one center. The primary outcome measure was revision of the femoral, tibial, or patellar component. A secondary outcome was reoperation for any reason. The new-TKA group had a significantly reduced revision rate at up to 5 years follow-up (p = 0.02). Reoperation rates for any reason were similar (p = 0.3). The new TKA design has a significantly better early revision rate compared with a currently available gold-standard TKA. This is the largest study of 1,000 cases comparing a new TKA design with a currently available design with excellent midterm results. It demonstrates very favorable early clinical results for the new TKA design, providing reassurance for patients, surgeons, and regulatory bodies.

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“…Die tatsächliche Rotationskinematik ist dabei vom tibialen Slope abhängig und wenig vorhersagbar. Eine aktuelle Arbeit zeigt sogar, dass der femorale Kondylenradius einen höheren Einfluss auf die Rotationskinematik in einem mobilen Inlaykonzept hat als der eigentliche Rotationsmechanismus des Onlays [36]. In Bezug auf die niedrig konformen Inlays wurden Posterior-stabilized Prothesen entwickelt um ein geführtes posteriores Rollback zu schaffen und die Problematik der anterioposterioren Instabilität zu adressieren [37].…”

Section: Tibiale Rotationskinematikunclassified

Knieprothesendesign und Kinematik: Unterschiede in Radien, Konformität und Rotation/Pivot

et al. 2018

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Today, there is an almost endless variety of knee prosthesis models on the market from which the surgeon can choose. Although the designs appear closer and closer to one another, the industry makes a great effort to emphasise different features as beneficial and a stand-alone. It is increasingly difficult to keep an overview and to assess the clinical relevance of the diverse features. There is a clear lack of independent comparative studies and evidence is low. Nevertheless, different design philosophies require special surgical techniques, so that the surgeon must be familiar with the peculiarity of his/her prosthesis. Also, a differentiated indication for different designs appears to be an interesting concept. The aim of this essay is to give a brief overview of the major design concepts of current unconstrained knee prosthesis designs and their differences regarding biomechanics and kinematics.

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

Abstract: III.

Cited by 38 publications

References 44 publications

Comparative Analysis Investigating the Impact of Implant Design on Hospital Length of Stay and Discharge Destination in a Dutch Hospital With an Established Enhanced Recovery Program

Comparative Analysis Investigating the Impact of Implant Design on Hospital Length of Stay and Discharge Destination in a Dutch Hospital With an Established Enhanced Recovery Program

A New Total Knee Arthroplasty Design Has Significantly Better Early Implant Survivorship than a Previous Gold-Standard Design—A Retrospective Analysis of 1,000 Cases

Knieprothesendesign und Kinematik: Unterschiede in Radien, Konformität und Rotation/Pivot

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