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Reversed shoulder arthroplasty with inversed bearing materials: 2-year clinical and radiographic results in 101 patients

INTRODUCTION: This study documents 2-year clinical and radiographic results following reversed total shoulder arthroplasty using a novel prosthesis with inverted bearing materials (polyethylene glenoid; metal humeral component). This design was intended to avoid massive PE abrasion on the humeral si...

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Autores principales: Irlenbusch, Ulrich, Kääb, Max J., Kohut, George, Proust, Jerome, Reuther, Falk, Joudet, Thierry
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4295027/
https://www.ncbi.nlm.nih.gov/pubmed/25539850
http://dx.doi.org/10.1007/s00402-014-2135-0
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author Irlenbusch, Ulrich
Kääb, Max J.
Kohut, George
Proust, Jerome
Reuther, Falk
Joudet, Thierry
author_facet Irlenbusch, Ulrich
Kääb, Max J.
Kohut, George
Proust, Jerome
Reuther, Falk
Joudet, Thierry
author_sort Irlenbusch, Ulrich
collection PubMed
description INTRODUCTION: This study documents 2-year clinical and radiographic results following reversed total shoulder arthroplasty using a novel prosthesis with inverted bearing materials (polyethylene glenoid; metal humeral component). This design was intended to avoid massive PE abrasion on the humeral side. Therefore, we predicted a lack of subsequent osteolysis-induced exacerbation of scapular notching, and because of other design features and modified operating technique a reduced notching rate. MATERIALS AND METHODS: An ongoing, prospective, international, multicenter study of patients implanted with a novel prosthesis at six European centers. The current analysis presents 2-year follow-up data (patients operated between December 2007 and July 2009). Clinical evaluation tools comprised the Constant–Murley score (CS), the American Shoulder and Elbow Surgeon score, range of motion, and a visual analog scale to assess pain and satisfaction. Radiographs were evaluated for notching and radiolucent lines. Any complications were recorded. RESULTS: In total, 113 prostheses (113 patients) with a mean follow-up of 27.6 (±3.6) months were analyzed. CS increased from 22.5 (±13.7) to 65.3 (±14.9) points (p = 0.06). Inferior scapular notching (only grade 1 and 2) was identified in 20.5 % of patients, with no signs of PE-induced osteolysis. 4.4 % of patients experienced an implant-related complication. CONCLUSIONS: Inversion of the materials led to another type of notching with no signs of PE-induced osteolysis and no increase in the risk of short-term complications. Clinical results were comparable with other prostheses. Mid- to long-term results are required before any firm conclusions on clinical outcome and survival can be drawn.
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spelling pubmed-42950272015-01-22 Reversed shoulder arthroplasty with inversed bearing materials: 2-year clinical and radiographic results in 101 patients Irlenbusch, Ulrich Kääb, Max J. Kohut, George Proust, Jerome Reuther, Falk Joudet, Thierry Arch Orthop Trauma Surg Orthopaedic Surgery INTRODUCTION: This study documents 2-year clinical and radiographic results following reversed total shoulder arthroplasty using a novel prosthesis with inverted bearing materials (polyethylene glenoid; metal humeral component). This design was intended to avoid massive PE abrasion on the humeral side. Therefore, we predicted a lack of subsequent osteolysis-induced exacerbation of scapular notching, and because of other design features and modified operating technique a reduced notching rate. MATERIALS AND METHODS: An ongoing, prospective, international, multicenter study of patients implanted with a novel prosthesis at six European centers. The current analysis presents 2-year follow-up data (patients operated between December 2007 and July 2009). Clinical evaluation tools comprised the Constant–Murley score (CS), the American Shoulder and Elbow Surgeon score, range of motion, and a visual analog scale to assess pain and satisfaction. Radiographs were evaluated for notching and radiolucent lines. Any complications were recorded. RESULTS: In total, 113 prostheses (113 patients) with a mean follow-up of 27.6 (±3.6) months were analyzed. CS increased from 22.5 (±13.7) to 65.3 (±14.9) points (p = 0.06). Inferior scapular notching (only grade 1 and 2) was identified in 20.5 % of patients, with no signs of PE-induced osteolysis. 4.4 % of patients experienced an implant-related complication. CONCLUSIONS: Inversion of the materials led to another type of notching with no signs of PE-induced osteolysis and no increase in the risk of short-term complications. Clinical results were comparable with other prostheses. Mid- to long-term results are required before any firm conclusions on clinical outcome and survival can be drawn. Springer Berlin Heidelberg 2014-12-25 2015 /pmc/articles/PMC4295027/ /pubmed/25539850 http://dx.doi.org/10.1007/s00402-014-2135-0 Text en © The Author(s) 2014 https://creativecommons.org/licenses/by/4.0/ Open AccessThis article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited.
spellingShingle Orthopaedic Surgery
Irlenbusch, Ulrich
Kääb, Max J.
Kohut, George
Proust, Jerome
Reuther, Falk
Joudet, Thierry
Reversed shoulder arthroplasty with inversed bearing materials: 2-year clinical and radiographic results in 101 patients
title Reversed shoulder arthroplasty with inversed bearing materials: 2-year clinical and radiographic results in 101 patients
title_full Reversed shoulder arthroplasty with inversed bearing materials: 2-year clinical and radiographic results in 101 patients
title_fullStr Reversed shoulder arthroplasty with inversed bearing materials: 2-year clinical and radiographic results in 101 patients
title_full_unstemmed Reversed shoulder arthroplasty with inversed bearing materials: 2-year clinical and radiographic results in 101 patients
title_short Reversed shoulder arthroplasty with inversed bearing materials: 2-year clinical and radiographic results in 101 patients
title_sort reversed shoulder arthroplasty with inversed bearing materials: 2-year clinical and radiographic results in 101 patients
topic Orthopaedic Surgery
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4295027/
https://www.ncbi.nlm.nih.gov/pubmed/25539850
http://dx.doi.org/10.1007/s00402-014-2135-0
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