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A comparison of structural and mechanical properties in cancellous bone from the femoral head and acetabulum

Thompson, MS; Flivik, Gunnar LU ; Juliusson, R; Odgaard, A and Ryd, L (2004) In Proceedings of the Institution of Mechanical Engineers. Part H: Journal of Engineering in Medicine 218(H6). p.425-429
Abstract
Mechanical interlock obtained by penetration of bone cement into cancellous bone is critical to the success of cemented total hip replacement (THR). Although acetabular component loosening is an important mode of THR failure, the properties of acetabular cancellous bone relevant to cement penetration are not well characterized. Bone biopsies (9 mm diameter, 10 mm long) were taken from the articular surfaces of the acetabulum and femoral head during total hip replacement. After mechanical and chemical defatting the two groups of bone specimens were characterized using flow measurement, mechanical testing and finally serial sectioning and three-dimensional computer reconstruction. The mean permeabilities of the acetabular group (1.064 x... (More)
Mechanical interlock obtained by penetration of bone cement into cancellous bone is critical to the success of cemented total hip replacement (THR). Although acetabular component loosening is an important mode of THR failure, the properties of acetabular cancellous bone relevant to cement penetration are not well characterized. Bone biopsies (9 mm diameter, 10 mm long) were taken from the articular surfaces of the acetabulum and femoral head during total hip replacement. After mechanical and chemical defatting the two groups of bone specimens were characterized using flow measurement, mechanical testing and finally serial sectioning and three-dimensional computer reconstruction. The mean permeabilities of the acetabular group (1.064 x 10(-10) m(2)) and femoral group (1.155 x 10(-10) m(2)) were calculated from the flow measurements, which used saline solution and a static pressure of 9.8 kPa. The mean Young's modulus, measured non-destructively, was 47.4 MPa for the femoral group and 116.4 MPa for the acetabular group. Three-dimensional computer reconstruction of the specimens showed no significant differences in connectivity and porosity between the groups. Results obtained using femoral head cancellous bone to investigate bone cement penetration and fixation are directly relevant to fixation in the acetabulum. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
cancellous bone, cementation, permeability, total hip replacement
in
Proceedings of the Institution of Mechanical Engineers. Part H: Journal of Engineering in Medicine
volume
218
issue
H6
pages
425 - 429
publisher
Mechanical Engineering Publications For The Institution Of Mechanical Engineers
external identifiers
  • pmid:15648666
  • wos:000228936500006
  • scopus:13744249905
ISSN
0954-4119
DOI
10.1243/0954411042632081
language
English
LU publication?
yes
id
ebc79395-e107-4ad4-8b79-548d2dda88b5 (old id 240694)
date added to LUP
2007-11-03 09:37:40
date last changed
2017-06-18 04:27:56
@article{ebc79395-e107-4ad4-8b79-548d2dda88b5,
  abstract     = {Mechanical interlock obtained by penetration of bone cement into cancellous bone is critical to the success of cemented total hip replacement (THR). Although acetabular component loosening is an important mode of THR failure, the properties of acetabular cancellous bone relevant to cement penetration are not well characterized. Bone biopsies (9 mm diameter, 10 mm long) were taken from the articular surfaces of the acetabulum and femoral head during total hip replacement. After mechanical and chemical defatting the two groups of bone specimens were characterized using flow measurement, mechanical testing and finally serial sectioning and three-dimensional computer reconstruction. The mean permeabilities of the acetabular group (1.064 x 10(-10) m(2)) and femoral group (1.155 x 10(-10) m(2)) were calculated from the flow measurements, which used saline solution and a static pressure of 9.8 kPa. The mean Young's modulus, measured non-destructively, was 47.4 MPa for the femoral group and 116.4 MPa for the acetabular group. Three-dimensional computer reconstruction of the specimens showed no significant differences in connectivity and porosity between the groups. Results obtained using femoral head cancellous bone to investigate bone cement penetration and fixation are directly relevant to fixation in the acetabulum.},
  author       = {Thompson, MS and Flivik, Gunnar and Juliusson, R and Odgaard, A and Ryd, L},
  issn         = {0954-4119},
  keyword      = {cancellous bone,cementation,permeability,total hip replacement},
  language     = {eng},
  number       = {H6},
  pages        = {425--429},
  publisher    = {Mechanical Engineering Publications For The Institution Of Mechanical Engineers},
  series       = {Proceedings of the Institution of Mechanical Engineers. Part H: Journal of Engineering in Medicine},
  title        = {A comparison of structural and mechanical properties in cancellous bone from the femoral head and acetabulum},
  url          = {http://dx.doi.org/10.1243/0954411042632081},
  volume       = {218},
  year         = {2004},
}