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Observation of initial postoperative radiolucent lines using a modern pegged-glenoid design

PURPOSE: Glenoid component loosening remains a common mode of failure for total shoulder arthroplasty and has inspired improvements in implant design, instrumentation, and surgical technique. The purpose of this manuscript was to evaluate the incidence of radiolucent lines and glenoid seating on ini...

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Autores principales: Everding, Nathan G., Levy, Jonathan C., Formaini, Nathan T., Blum, Sara, Gil, Carlos C., Verde, Kevin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Medknow Publications & Media Pvt Ltd 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4857533/
https://www.ncbi.nlm.nih.gov/pubmed/27186058
http://dx.doi.org/10.4103/0973-6042.180718
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author Everding, Nathan G.
Levy, Jonathan C.
Formaini, Nathan T.
Blum, Sara
Gil, Carlos C.
Verde, Kevin
author_facet Everding, Nathan G.
Levy, Jonathan C.
Formaini, Nathan T.
Blum, Sara
Gil, Carlos C.
Verde, Kevin
author_sort Everding, Nathan G.
collection PubMed
description PURPOSE: Glenoid component loosening remains a common mode of failure for total shoulder arthroplasty and has inspired improvements in implant design, instrumentation, and surgical technique. The purpose of this manuscript was to evaluate the incidence of radiolucent lines and glenoid seating on initial postoperative radiographs using a modern pegged-glenoid design, instrumentation, and surgical technique. MATERIALS AND METHODS: We performed a retrospective analysis of a consecutive series of 100 pegged-glenoid total shoulder replacements. In cases of excessive glenoid version, the glenoid was asymmetrically reamed to recreate more normal version. Initial postoperative radiographs were evaluated for the presence of radiolucent lines and completeness of glenoid seating. The preoperative glenoid version measured on axial computed tomography (CT) scans was used to compare differences in version among those with complete and incompletely seated glenoids. RESULTS: The rate of radiolucent lines observed on postoperative radiographs was 0%. Complete glenoid seating (Grade A) was observed in 81 patients (observer 1) and 82 patients (observer 2). Measurements of preoperative CT scans found a higher percentage of abnormal glenoid version for incompletely seated glenoids (47%) than completely seated glenoids (34%) but no significant difference (P = 0.327). The mean preoperative glenoid retroversion for incompletely seated glenoids was 12.1° and 9.1° for completely seated glenoids (P = 0.263). CONCLUSIONS: Modern surgical techniques, surgical instrumentation, and peg glenoid design have facilitated the ability to eliminate radiolucent lines on initial postoperative radiographs with high rates of complete seating of glenoid components. Incomplete seating may be related to incomplete correction of glenoid version.
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spelling pubmed-48575332016-05-16 Observation of initial postoperative radiolucent lines using a modern pegged-glenoid design Everding, Nathan G. Levy, Jonathan C. Formaini, Nathan T. Blum, Sara Gil, Carlos C. Verde, Kevin Int J Shoulder Surg Original Article PURPOSE: Glenoid component loosening remains a common mode of failure for total shoulder arthroplasty and has inspired improvements in implant design, instrumentation, and surgical technique. The purpose of this manuscript was to evaluate the incidence of radiolucent lines and glenoid seating on initial postoperative radiographs using a modern pegged-glenoid design, instrumentation, and surgical technique. MATERIALS AND METHODS: We performed a retrospective analysis of a consecutive series of 100 pegged-glenoid total shoulder replacements. In cases of excessive glenoid version, the glenoid was asymmetrically reamed to recreate more normal version. Initial postoperative radiographs were evaluated for the presence of radiolucent lines and completeness of glenoid seating. The preoperative glenoid version measured on axial computed tomography (CT) scans was used to compare differences in version among those with complete and incompletely seated glenoids. RESULTS: The rate of radiolucent lines observed on postoperative radiographs was 0%. Complete glenoid seating (Grade A) was observed in 81 patients (observer 1) and 82 patients (observer 2). Measurements of preoperative CT scans found a higher percentage of abnormal glenoid version for incompletely seated glenoids (47%) than completely seated glenoids (34%) but no significant difference (P = 0.327). The mean preoperative glenoid retroversion for incompletely seated glenoids was 12.1° and 9.1° for completely seated glenoids (P = 0.263). CONCLUSIONS: Modern surgical techniques, surgical instrumentation, and peg glenoid design have facilitated the ability to eliminate radiolucent lines on initial postoperative radiographs with high rates of complete seating of glenoid components. Incomplete seating may be related to incomplete correction of glenoid version. Medknow Publications & Media Pvt Ltd 2016 /pmc/articles/PMC4857533/ /pubmed/27186058 http://dx.doi.org/10.4103/0973-6042.180718 Text en Copyright: © 2016 International Journal of Shoulder Surgery http://creativecommons.org/licenses/by-nc-sa/3.0 This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as the author is credited and the new creations are licensed under the identical terms.
spellingShingle Original Article
Everding, Nathan G.
Levy, Jonathan C.
Formaini, Nathan T.
Blum, Sara
Gil, Carlos C.
Verde, Kevin
Observation of initial postoperative radiolucent lines using a modern pegged-glenoid design
title Observation of initial postoperative radiolucent lines using a modern pegged-glenoid design
title_full Observation of initial postoperative radiolucent lines using a modern pegged-glenoid design
title_fullStr Observation of initial postoperative radiolucent lines using a modern pegged-glenoid design
title_full_unstemmed Observation of initial postoperative radiolucent lines using a modern pegged-glenoid design
title_short Observation of initial postoperative radiolucent lines using a modern pegged-glenoid design
title_sort observation of initial postoperative radiolucent lines using a modern pegged-glenoid design
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4857533/
https://www.ncbi.nlm.nih.gov/pubmed/27186058
http://dx.doi.org/10.4103/0973-6042.180718
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