Cargando…

The Geometry of the Bone Structure Associated with Total Hip Arthroplasty

Close adaptation of the prosthesis to the bone is the key to achieving optimal stability and fixation for total hip arthroplasty (THA). However, there have been no adequate studies of bone morphology, especially in different races. The aim of this study was to analyze the geometry of the acetabulum...

Descripción completa

Detalles Bibliográficos
Autores principales: Yang, Zhang, Jian, Wang, Zhi-han, Li, Jun, Xiao, Liang, Zhao, Ge, Yan, Zhan-jun, Shi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3946655/
https://www.ncbi.nlm.nih.gov/pubmed/24608343
http://dx.doi.org/10.1371/journal.pone.0091058
_version_ 1782306675373375488
author Yang, Zhang
Jian, Wang
Zhi-han, Li
Jun, Xiao
Liang, Zhao
Ge, Yan
Zhan-jun, Shi
author_facet Yang, Zhang
Jian, Wang
Zhi-han, Li
Jun, Xiao
Liang, Zhao
Ge, Yan
Zhan-jun, Shi
author_sort Yang, Zhang
collection PubMed
description Close adaptation of the prosthesis to the bone is the key to achieving optimal stability and fixation for total hip arthroplasty (THA). However, there have been no adequate studies of bone morphology, especially in different races. The aim of this study was to analyze the geometry of the acetabulum and proximal femur of people from South China, based on three-dimensional reconstruction, and to detect differences between different population subsets. CT scans were performed on 80 healthy volunteers (160 hips) from South China, comprising 40 males (80 hips) and 40 females (80 hips). The images were imported into Mimics 10.01 to perform 3D reconstruction. THA-associated anatomical parameters were measured and compared with other published data. In comparison with published data, it seemed that people from South China have smaller acetabular abduction angle, larger acetabular supro-inferior diameter, larger neck-shaft angle, smaller offset, thinner femoral shaft and more proximal isthmus, which needed to be further confirmed. There were significant differences between the genders in most parameters. As significant differences in canal flare index (CFI) and distal canal flare index (DCFI) were found between genders, it was concluded the most significant differences lay in the isthmus of the femur. Among the femora, according to Noble’s classification we identified more normal types and fewer stovepipe and champagne-flute types than expected from the literature, indicating that uncemented prostheses would be suitable for most people from South China. Our findings reveal that simply choosing the smallest of a series of prostheses would not necessarily provide a good fit, due to the different trends from the proximal to the distal part of the femur. Significant variation exists in THA-associated anatomy between genders and population subsets. It is therefore imperative that each patient receives individual consideration rather than assuming all patients have the same anatomy, especially for different races.
format Online
Article
Text
id pubmed-3946655
institution National Center for Biotechnology Information
language English
publishDate 2014
publisher Public Library of Science
record_format MEDLINE/PubMed
spelling pubmed-39466552014-03-10 The Geometry of the Bone Structure Associated with Total Hip Arthroplasty Yang, Zhang Jian, Wang Zhi-han, Li Jun, Xiao Liang, Zhao Ge, Yan Zhan-jun, Shi PLoS One Research Article Close adaptation of the prosthesis to the bone is the key to achieving optimal stability and fixation for total hip arthroplasty (THA). However, there have been no adequate studies of bone morphology, especially in different races. The aim of this study was to analyze the geometry of the acetabulum and proximal femur of people from South China, based on three-dimensional reconstruction, and to detect differences between different population subsets. CT scans were performed on 80 healthy volunteers (160 hips) from South China, comprising 40 males (80 hips) and 40 females (80 hips). The images were imported into Mimics 10.01 to perform 3D reconstruction. THA-associated anatomical parameters were measured and compared with other published data. In comparison with published data, it seemed that people from South China have smaller acetabular abduction angle, larger acetabular supro-inferior diameter, larger neck-shaft angle, smaller offset, thinner femoral shaft and more proximal isthmus, which needed to be further confirmed. There were significant differences between the genders in most parameters. As significant differences in canal flare index (CFI) and distal canal flare index (DCFI) were found between genders, it was concluded the most significant differences lay in the isthmus of the femur. Among the femora, according to Noble’s classification we identified more normal types and fewer stovepipe and champagne-flute types than expected from the literature, indicating that uncemented prostheses would be suitable for most people from South China. Our findings reveal that simply choosing the smallest of a series of prostheses would not necessarily provide a good fit, due to the different trends from the proximal to the distal part of the femur. Significant variation exists in THA-associated anatomy between genders and population subsets. It is therefore imperative that each patient receives individual consideration rather than assuming all patients have the same anatomy, especially for different races. Public Library of Science 2014-03-07 /pmc/articles/PMC3946655/ /pubmed/24608343 http://dx.doi.org/10.1371/journal.pone.0091058 Text en © 2014 Yang 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, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
spellingShingle Research Article
Yang, Zhang
Jian, Wang
Zhi-han, Li
Jun, Xiao
Liang, Zhao
Ge, Yan
Zhan-jun, Shi
The Geometry of the Bone Structure Associated with Total Hip Arthroplasty
title The Geometry of the Bone Structure Associated with Total Hip Arthroplasty
title_full The Geometry of the Bone Structure Associated with Total Hip Arthroplasty
title_fullStr The Geometry of the Bone Structure Associated with Total Hip Arthroplasty
title_full_unstemmed The Geometry of the Bone Structure Associated with Total Hip Arthroplasty
title_short The Geometry of the Bone Structure Associated with Total Hip Arthroplasty
title_sort geometry of the bone structure associated with total hip arthroplasty
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3946655/
https://www.ncbi.nlm.nih.gov/pubmed/24608343
http://dx.doi.org/10.1371/journal.pone.0091058
work_keys_str_mv AT yangzhang thegeometryofthebonestructureassociatedwithtotalhiparthroplasty
AT jianwang thegeometryofthebonestructureassociatedwithtotalhiparthroplasty
AT zhihanli thegeometryofthebonestructureassociatedwithtotalhiparthroplasty
AT junxiao thegeometryofthebonestructureassociatedwithtotalhiparthroplasty
AT liangzhao thegeometryofthebonestructureassociatedwithtotalhiparthroplasty
AT geyan thegeometryofthebonestructureassociatedwithtotalhiparthroplasty
AT zhanjunshi thegeometryofthebonestructureassociatedwithtotalhiparthroplasty
AT yangzhang geometryofthebonestructureassociatedwithtotalhiparthroplasty
AT jianwang geometryofthebonestructureassociatedwithtotalhiparthroplasty
AT zhihanli geometryofthebonestructureassociatedwithtotalhiparthroplasty
AT junxiao geometryofthebonestructureassociatedwithtotalhiparthroplasty
AT liangzhao geometryofthebonestructureassociatedwithtotalhiparthroplasty
AT geyan geometryofthebonestructureassociatedwithtotalhiparthroplasty
AT zhanjunshi geometryofthebonestructureassociatedwithtotalhiparthroplasty