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The glenohumeral joint - a mismatching system? A morphological analysis of the cartilaginous and osseous curvature of the humeral head and the glenoid cavity

BACKGROUND: Radial mismatch, glenohumeral conformity ratios and differences between cartilaginous and osseous radii highly depend on the measured plane. The comparison of cartilaginous radii between humeral head and glenoid in different planes provides new information to understand the degree of con...

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Autores principales: Zumstein, Valentin, Kraljević, Marko, Hoechel, Sebastian, Conzen, Annemarie, Nowakowski, Andrej Maria, Müller-Gerbl, Magdalena
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4064510/
https://www.ncbi.nlm.nih.gov/pubmed/24886613
http://dx.doi.org/10.1186/1749-799X-9-34
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author Zumstein, Valentin
Kraljević, Marko
Hoechel, Sebastian
Conzen, Annemarie
Nowakowski, Andrej Maria
Müller-Gerbl, Magdalena
author_facet Zumstein, Valentin
Kraljević, Marko
Hoechel, Sebastian
Conzen, Annemarie
Nowakowski, Andrej Maria
Müller-Gerbl, Magdalena
author_sort Zumstein, Valentin
collection PubMed
description BACKGROUND: Radial mismatch, glenohumeral conformity ratios and differences between cartilaginous and osseous radii highly depend on the measured plane. The comparison of cartilaginous radii between humeral head and glenoid in different planes provides new information to understand the degree of conformity during abduction of the upper limb. METHODS: To investigate the radii, CT-images in soft-tissue kernel of 9 specimen were analysed using an image visualization software. Statistical analysis of the obtained data was performed using the t-test. RESULTS: Measurements of the radii in the glenoid revealed a significantly larger radius for bone than cartilage, whereas for the humeral head the opposite was the case. Highest ratios for cartilage in the transverse plane were found in the inferior and central areas of the joint surface, whereas the smallest ratios were found in the superior area. The radial mismatch varied between 0.1 mm and 13.6 mm, depending on the measured plane. CONCLUSIONS: The results suggest that in abduction, the cartilaginous guidance of the humeral head decreases. This might permit the humeral head an anterior-posterior shifting as well as superior-inferior translation. Surgical reconstruction of the normal glenohumeral relationships necessitates precise information about the glenohumeral morphology to ensure proper sizing and correct placement of prosthetic components and osteochondral allografts.
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spelling pubmed-40645102014-06-21 The glenohumeral joint - a mismatching system? A morphological analysis of the cartilaginous and osseous curvature of the humeral head and the glenoid cavity Zumstein, Valentin Kraljević, Marko Hoechel, Sebastian Conzen, Annemarie Nowakowski, Andrej Maria Müller-Gerbl, Magdalena J Orthop Surg Res Research Article BACKGROUND: Radial mismatch, glenohumeral conformity ratios and differences between cartilaginous and osseous radii highly depend on the measured plane. The comparison of cartilaginous radii between humeral head and glenoid in different planes provides new information to understand the degree of conformity during abduction of the upper limb. METHODS: To investigate the radii, CT-images in soft-tissue kernel of 9 specimen were analysed using an image visualization software. Statistical analysis of the obtained data was performed using the t-test. RESULTS: Measurements of the radii in the glenoid revealed a significantly larger radius for bone than cartilage, whereas for the humeral head the opposite was the case. Highest ratios for cartilage in the transverse plane were found in the inferior and central areas of the joint surface, whereas the smallest ratios were found in the superior area. The radial mismatch varied between 0.1 mm and 13.6 mm, depending on the measured plane. CONCLUSIONS: The results suggest that in abduction, the cartilaginous guidance of the humeral head decreases. This might permit the humeral head an anterior-posterior shifting as well as superior-inferior translation. Surgical reconstruction of the normal glenohumeral relationships necessitates precise information about the glenohumeral morphology to ensure proper sizing and correct placement of prosthetic components and osteochondral allografts. BioMed Central 2014-05-13 /pmc/articles/PMC4064510/ /pubmed/24886613 http://dx.doi.org/10.1186/1749-799X-9-34 Text en Copyright © 2014 Zumstein et al.; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited.
spellingShingle Research Article
Zumstein, Valentin
Kraljević, Marko
Hoechel, Sebastian
Conzen, Annemarie
Nowakowski, Andrej Maria
Müller-Gerbl, Magdalena
The glenohumeral joint - a mismatching system? A morphological analysis of the cartilaginous and osseous curvature of the humeral head and the glenoid cavity
title The glenohumeral joint - a mismatching system? A morphological analysis of the cartilaginous and osseous curvature of the humeral head and the glenoid cavity
title_full The glenohumeral joint - a mismatching system? A morphological analysis of the cartilaginous and osseous curvature of the humeral head and the glenoid cavity
title_fullStr The glenohumeral joint - a mismatching system? A morphological analysis of the cartilaginous and osseous curvature of the humeral head and the glenoid cavity
title_full_unstemmed The glenohumeral joint - a mismatching system? A morphological analysis of the cartilaginous and osseous curvature of the humeral head and the glenoid cavity
title_short The glenohumeral joint - a mismatching system? A morphological analysis of the cartilaginous and osseous curvature of the humeral head and the glenoid cavity
title_sort glenohumeral joint - a mismatching system? a morphological analysis of the cartilaginous and osseous curvature of the humeral head and the glenoid cavity
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4064510/
https://www.ncbi.nlm.nih.gov/pubmed/24886613
http://dx.doi.org/10.1186/1749-799X-9-34
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