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Early Results of a New Rotating Hinge Knee Implant

Background. Indication for rotating hinge (RH) total knee arthroplasty (TKA) includes primary and revision cases, with contradictory results. The aim of this study was to report prospective early results of a new modular rotating hinge TKA (EnduRo). For this implant several new design features and a...

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Autores principales: Giurea, Alexander, Neuhaus, Hans-Joachim, Miehlke, Rolf, Schuh, Reinhard, Lass, Richard, Kubista, Bernd, Windhager, Reinhard
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4095738/
https://www.ncbi.nlm.nih.gov/pubmed/25089279
http://dx.doi.org/10.1155/2014/948520
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author Giurea, Alexander
Neuhaus, Hans-Joachim
Miehlke, Rolf
Schuh, Reinhard
Lass, Richard
Kubista, Bernd
Windhager, Reinhard
author_facet Giurea, Alexander
Neuhaus, Hans-Joachim
Miehlke, Rolf
Schuh, Reinhard
Lass, Richard
Kubista, Bernd
Windhager, Reinhard
author_sort Giurea, Alexander
collection PubMed
description Background. Indication for rotating hinge (RH) total knee arthroplasty (TKA) includes primary and revision cases, with contradictory results. The aim of this study was to report prospective early results of a new modular rotating hinge TKA (EnduRo). For this implant several new design features and a new bearing material (carbon-fiber reinforced poly-ether-ether-ketone) have been developed. Furthermore, we tried to establish a new classification of failure modes for revision TKA. Methods. 152 EnduRo rotating-hinge prostheses were implanted in two centers. In 90 patients a primary implantation has been performed and 62 patients were revision cases. Knee Society Score (KSS), Western Ontario and McMaster Osteoarthritis Index (WOMAC), Oxford Knee Score (OKS), and Range of motion (ROM) were assessed before surgery, 3 months postoperatively, 12 months postoperatively, and annually thereafter. We defined 3 types of complications: Type 1, infection; type 2, periprosthetic complications; type 3, implant failures. Results. KSS, WOMAC, OKS, and ROM revealed significant improvements between the preoperative and the follow-up investigations. There were 14 complications (9.2%) leading to revision surgery, predominantly type 2. Conclusion. Our study shows excellent clinical results of the EnduRo TKA. Furthermore, no premature material failure or unusual biological response to the new bearing material could be detected.
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spelling pubmed-40957382014-08-03 Early Results of a New Rotating Hinge Knee Implant Giurea, Alexander Neuhaus, Hans-Joachim Miehlke, Rolf Schuh, Reinhard Lass, Richard Kubista, Bernd Windhager, Reinhard Biomed Res Int Clinical Study Background. Indication for rotating hinge (RH) total knee arthroplasty (TKA) includes primary and revision cases, with contradictory results. The aim of this study was to report prospective early results of a new modular rotating hinge TKA (EnduRo). For this implant several new design features and a new bearing material (carbon-fiber reinforced poly-ether-ether-ketone) have been developed. Furthermore, we tried to establish a new classification of failure modes for revision TKA. Methods. 152 EnduRo rotating-hinge prostheses were implanted in two centers. In 90 patients a primary implantation has been performed and 62 patients were revision cases. Knee Society Score (KSS), Western Ontario and McMaster Osteoarthritis Index (WOMAC), Oxford Knee Score (OKS), and Range of motion (ROM) were assessed before surgery, 3 months postoperatively, 12 months postoperatively, and annually thereafter. We defined 3 types of complications: Type 1, infection; type 2, periprosthetic complications; type 3, implant failures. Results. KSS, WOMAC, OKS, and ROM revealed significant improvements between the preoperative and the follow-up investigations. There were 14 complications (9.2%) leading to revision surgery, predominantly type 2. Conclusion. Our study shows excellent clinical results of the EnduRo TKA. Furthermore, no premature material failure or unusual biological response to the new bearing material could be detected. Hindawi Publishing Corporation 2014 2014-06-25 /pmc/articles/PMC4095738/ /pubmed/25089279 http://dx.doi.org/10.1155/2014/948520 Text en Copyright © 2014 Alexander Giurea et al. https://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Clinical Study
Giurea, Alexander
Neuhaus, Hans-Joachim
Miehlke, Rolf
Schuh, Reinhard
Lass, Richard
Kubista, Bernd
Windhager, Reinhard
Early Results of a New Rotating Hinge Knee Implant
title Early Results of a New Rotating Hinge Knee Implant
title_full Early Results of a New Rotating Hinge Knee Implant
title_fullStr Early Results of a New Rotating Hinge Knee Implant
title_full_unstemmed Early Results of a New Rotating Hinge Knee Implant
title_short Early Results of a New Rotating Hinge Knee Implant
title_sort early results of a new rotating hinge knee implant
topic Clinical Study
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4095738/
https://www.ncbi.nlm.nih.gov/pubmed/25089279
http://dx.doi.org/10.1155/2014/948520
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