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Sex-related differences in carpal arch morphology

The purpose of this study was to investigate the sex-based differences in the carpal arch morphology. Carpal arch morphology was quantified using palmar bowing and area of the arch formed by the transverse carpal ligament. The carpal arch was imaged at the distal and proximal tunnel levels using ult...

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Detalles Bibliográficos
Autores principales: Lakshminarayanan, Kishor, Shah, Rakshit, Li, Zong-Ming
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6530862/
https://www.ncbi.nlm.nih.gov/pubmed/31116798
http://dx.doi.org/10.1371/journal.pone.0217425
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author Lakshminarayanan, Kishor
Shah, Rakshit
Li, Zong-Ming
author_facet Lakshminarayanan, Kishor
Shah, Rakshit
Li, Zong-Ming
author_sort Lakshminarayanan, Kishor
collection PubMed
description The purpose of this study was to investigate the sex-based differences in the carpal arch morphology. Carpal arch morphology was quantified using palmar bowing and area of the arch formed by the transverse carpal ligament. The carpal arch was imaged at the distal and proximal tunnel levels using ultrasonography in 20 healthy young adults (10 women and 10 men). It was found that females had a smaller carpal arch height compared to men at both distal and proximal levels (p<0.05) and smaller carpal arch width only at the proximal level (p<0.05) but not distally. Palmar bowing index, the carpal arch height to width ratio, was significantly smaller in females at the distal level (p<0.05) but not at the proximal level. Carpal arch cross-sectional area normalized to the wrist cross-sectional area was found to be significantly smaller in females at both tunnel levels compared to men (p<0.05). This study demonstrates that females have a smaller carpal arch compared to men with a reduced palmar bowing distally and a smaller arch area at both tunnel levels. The findings help explain the higher incidence of carpal tunnel syndrome in women as a smaller carpal arch makes the median nerve more vulnerable to compression neuropathy.
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spelling pubmed-65308622019-05-31 Sex-related differences in carpal arch morphology Lakshminarayanan, Kishor Shah, Rakshit Li, Zong-Ming PLoS One Research Article The purpose of this study was to investigate the sex-based differences in the carpal arch morphology. Carpal arch morphology was quantified using palmar bowing and area of the arch formed by the transverse carpal ligament. The carpal arch was imaged at the distal and proximal tunnel levels using ultrasonography in 20 healthy young adults (10 women and 10 men). It was found that females had a smaller carpal arch height compared to men at both distal and proximal levels (p<0.05) and smaller carpal arch width only at the proximal level (p<0.05) but not distally. Palmar bowing index, the carpal arch height to width ratio, was significantly smaller in females at the distal level (p<0.05) but not at the proximal level. Carpal arch cross-sectional area normalized to the wrist cross-sectional area was found to be significantly smaller in females at both tunnel levels compared to men (p<0.05). This study demonstrates that females have a smaller carpal arch compared to men with a reduced palmar bowing distally and a smaller arch area at both tunnel levels. The findings help explain the higher incidence of carpal tunnel syndrome in women as a smaller carpal arch makes the median nerve more vulnerable to compression neuropathy. Public Library of Science 2019-05-22 /pmc/articles/PMC6530862/ /pubmed/31116798 http://dx.doi.org/10.1371/journal.pone.0217425 Text en © 2019 Lakshminarayanan et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Lakshminarayanan, Kishor
Shah, Rakshit
Li, Zong-Ming
Sex-related differences in carpal arch morphology
title Sex-related differences in carpal arch morphology
title_full Sex-related differences in carpal arch morphology
title_fullStr Sex-related differences in carpal arch morphology
title_full_unstemmed Sex-related differences in carpal arch morphology
title_short Sex-related differences in carpal arch morphology
title_sort sex-related differences in carpal arch morphology
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6530862/
https://www.ncbi.nlm.nih.gov/pubmed/31116798
http://dx.doi.org/10.1371/journal.pone.0217425
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