Details
| Translated title of the contribution | Viscosity determination of synovial fluids from the canine hip and elbow joint as well as the human knee joint |
|---|---|
| Original language | German |
| Pages (from-to) | 374-80 |
| Number of pages | 7 |
| Journal | Berliner und Munchener Tierarztliche Wochenschrift |
| Volume | 121 |
| Issue number | 9-10 |
| Publication status | Published - 1 Oct 2008 |
Abstract
The development of pathological changes in both human and canine hip joints is mainly caused by a lack of synovial fluid lubrication. This results in an increased joint abrasion. Even after implantation of joint prosthesis, inadequate lubrication can lead to abrasion in the tribological pair. This can finally result in aseptic loosening of the prosthesis. In spite of the enormous number of studies that have been performed on human, only little knowledge about the tribological properties of the joints in dogs is available in the literature. For this reason the viscosities of synovial fluid, derived from physiological and pathologically changed canine elbow joints were measured. The viscosities were determined by the use of a cone-plate viscometer at different temperatures and shear rates. The obtained values were compared with the viscosity values of pathologically changed synovial fluids from human knee joints as well as with pathological samples from the canine hip joint. The results show that the viscosity values vary within a series of measurements and are inversely proportional to the temperature of the sample and the shear rate. The differences between the average viscosities of canine and human synovial fluids taken from pathologically changed joints are below 4% (22.5 s(-1) at theta1 = 25 degrees C). The findings of this study are being implemented in a FE-Model for the computation of actual forces in the hip joint during different movements. This would represent a contribution to an improved prosthetic treatment of canine and human hips.
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: Berliner und Munchener Tierarztliche Wochenschrift, Vol. 121, No. 9-10, 01.10.2008, p. 374-80.
Research output: Contribution to journal › Article › Research
}
TY - JOUR
T1 - Ermittlung der Viskosität von Synovialflüssigkeiten aus dem caninen Ellenbogen- und Hüftgelenk sowie dem humanen Kniegelenk
AU - Helms, Gabriele
AU - Rittmann, Pia
AU - Wefstaedt, Patrick
AU - Windhagen, Henning
AU - Pressel, Thomas
AU - Behrens, Bernd-Arno
AU - Nolte, Ingo
PY - 2008/10/1
Y1 - 2008/10/1
N2 - The development of pathological changes in both human and canine hip joints is mainly caused by a lack of synovial fluid lubrication. This results in an increased joint abrasion. Even after implantation of joint prosthesis, inadequate lubrication can lead to abrasion in the tribological pair. This can finally result in aseptic loosening of the prosthesis. In spite of the enormous number of studies that have been performed on human, only little knowledge about the tribological properties of the joints in dogs is available in the literature. For this reason the viscosities of synovial fluid, derived from physiological and pathologically changed canine elbow joints were measured. The viscosities were determined by the use of a cone-plate viscometer at different temperatures and shear rates. The obtained values were compared with the viscosity values of pathologically changed synovial fluids from human knee joints as well as with pathological samples from the canine hip joint. The results show that the viscosity values vary within a series of measurements and are inversely proportional to the temperature of the sample and the shear rate. The differences between the average viscosities of canine and human synovial fluids taken from pathologically changed joints are below 4% (22.5 s(-1) at theta1 = 25 degrees C). The findings of this study are being implemented in a FE-Model for the computation of actual forces in the hip joint during different movements. This would represent a contribution to an improved prosthetic treatment of canine and human hips.
AB - The development of pathological changes in both human and canine hip joints is mainly caused by a lack of synovial fluid lubrication. This results in an increased joint abrasion. Even after implantation of joint prosthesis, inadequate lubrication can lead to abrasion in the tribological pair. This can finally result in aseptic loosening of the prosthesis. In spite of the enormous number of studies that have been performed on human, only little knowledge about the tribological properties of the joints in dogs is available in the literature. For this reason the viscosities of synovial fluid, derived from physiological and pathologically changed canine elbow joints were measured. The viscosities were determined by the use of a cone-plate viscometer at different temperatures and shear rates. The obtained values were compared with the viscosity values of pathologically changed synovial fluids from human knee joints as well as with pathological samples from the canine hip joint. The results show that the viscosity values vary within a series of measurements and are inversely proportional to the temperature of the sample and the shear rate. The differences between the average viscosities of canine and human synovial fluids taken from pathologically changed joints are below 4% (22.5 s(-1) at theta1 = 25 degrees C). The findings of this study are being implemented in a FE-Model for the computation of actual forces in the hip joint during different movements. This would represent a contribution to an improved prosthetic treatment of canine and human hips.
KW - Animals
KW - Dogs
KW - Elbow Joint/pathology
KW - Friction
KW - Hip Joint/pathology
KW - Hip Prosthesis
KW - Humans
KW - Knee Joint/pathology
KW - Knee Prosthesis/veterinary
KW - Lubrication
KW - Prosthesis Design
KW - Species Specificity
KW - Synovial Fluid/chemistry
KW - Temperature
KW - Viscosity
M3 - Artikel
C2 - 18822609
VL - 121
SP - 374
EP - 380
JO - Berliner und Munchener Tierarztliche Wochenschrift
JF - Berliner und Munchener Tierarztliche Wochenschrift
SN - 0005-9366
IS - 9-10
ER -