Viscosity of Equine Synovial Fluid

Rejnö, Sven

doi:10.1186/bf03547925

Cited by 3 publications

(2 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A decrease in hyaluronate concentration , degree of polymerization , or aggregation may lead to a reduction in viscosity.7,8 Measurement of viscosity may provide valuable information about the is the force per unit area required to move adjacent layers of fluid.10 Shear rate ( sec -¹ ) is the velocity at which adjacent layers of fluid move Current capillary tube techniques for measuring SF viscosity are limited to measuring Newtonian fluids at unknown rpm or shear rates . These techniques give little information about functional properties of complex fluids , such as SF.4,7,[11][12][13] Rotational viscosimeters , however , have the advantage in that they can measure viscosity of complex non-Newtonian fluids at known shear rates . By measuring viscosity at several known rpm or shear rates , the functional properties of SF can be determined .…”

mentioning

confidence: 99%

See 1 more Smart Citation

Determination of total protein concentration and viscosity of synovial fluid from the tibiotarsal joints of horses

Korenek,

Andrews,

Maddux

et al. 1992

ajvr

View full text Add to dashboard Cite

Summary Viscosity of synovial fluid (sf) from 29 clinicadly normal horses was determined by use of a rotational cone and plate microviscosimeter. Total protein concentration in the sf of the 29 horses, as measured with a refractometer, was < 2.5 g/dl. When the Coomassie brilliant blue test was used to determine total protein concentration in sf for 15 horses, the mean value was 1,088 mg/dl. Viscosity values at 60, 30, 12, 6, 3, and 1.5 revolutions/min (rpm) spindle speed were 4.41 ± 1.54 centipoise (cp), 5.29 ± 1.94 cp, 6.76 ± 2.76 cp, 8.52 ± 4.27 cp, 10.41 ± 6.30 cp, and 13.07 ± 9.05 cp, respectively. Synovial fluid viscosity increased with decreasing rpm and shear rate, but the shape of the curve for each horse fitted the asymptotic curve. The rotational cone and plate microviscosimeter was an accurate instrument in measuring sf viscosity at multiple rpm or shear rates in horses. The values obtained on clinically normal horses in this study will serve as a baseline for comparison in the evaluation of horses with joint disease.

show abstract

mentioning

confidence: 99%

“…Non -Newtonian fluids ( eg , blood ) are complex fluids with viscosity that changes at various shear rates horses behaves as a non-Newtonian fluid because its viscosity decreases at high shear rates (shear thinning ). 10,11 Synovial fluid from diseased joints behaves as a Newtonian fluid and loses its functional property 10,11.…”

mentioning

confidence: 99%

Determination of total protein concentration and viscosity of synovial fluid from the tibiotarsal joints of horses

Korenek,

Andrews,

Maddux

et al. 1992

ajvr

View full text Add to dashboard Cite

show abstract

Synovial Fluid

Perman¹

1980

Clinical Biochemistry of Domestic Animals

View full text Add to dashboard Cite

Quantitative characterization of viscoelastic properties of synovial fluid from forelimb joints of orthopedically normal Thoroughbreds and warmblood horses

Tyrnenopoulou

Rizos

Kritsepi‐Konstantinou

et al. 2019

ajvr

View full text Add to dashboard Cite

OBJECTIVE To determine whether differences existed in the viscoelastic properties of synovial fluid samples from the metacarpophalangeal, intercarpal, and distal interphalangeal joints of orthopedically normal athletic horses. ANIMALS 45 warmblood horses and 30 Thoroughbreds (age range, 4 to 16 years). PROCEDURES Synovial fluid samples were aseptically obtained via arthrocentesis from 1 metacarpophalangeal, intercarpal, and distal interphalangeal joint of each horse, and nucleated cell counts were performed. A commercial ELISA was used to measure sample hyaluronic acid concentrations, and full rheological characterization of samples was performed to measure the elastic or storage modulus G' and viscous or loss modulus G“ at 37.5°C (representing the body temperature of horses). Findings were compared among joints and between breed groups by means of ANOVA. RESULTS Significant differences in synovial fluid G' and G“ values were identified between Thoroughbreds and warmblood horses for the metacarpophalangeal joint, between the metacarpophalangeal and intercarpal joints of Thoroughbreds, and between the metacarpophalangeal and distal interphalangeal joints and intercarpal and distal interphalangeal joints of warmblood horses. No significant differences were identified between breed groups or among joints in synovial fluid hyaluronic concentrations or nucleated cell counts. CONCLUSIONS AND CLINICAL RELEVANCE Viscoelastic properties of the forelimb joints of orthopedically normal Thoroughbreds and warmblood horses differed within and between these 2 groups, mainly as a function of the evaluated joint. To the authors' knowledge, this was the first study of its kind, and additional research is warranted to better understand the viscoelastic properties of synovial fluid in horses to optimize their locomotive function.

show abstract

Viscosity of Equine Synovial Fluid

Cited by 3 publications

References 1 publication

Determination of total protein concentration and viscosity of synovial fluid from the tibiotarsal joints of horses

Determination of total protein concentration and viscosity of synovial fluid from the tibiotarsal joints of horses

Synovial Fluid

Quantitative characterization of viscoelastic properties of synovial fluid from forelimb joints of orthopedically normal Thoroughbreds and warmblood horses

Contact Info

Product

Resources

About