title: [Rheology and hyaluronic acid in inflammatory joint effusions (author's transl)].
abstract: The Weissenberg rheogoniometer was used to measure viscosity, normal force and the number of molecular entanglements, calculated from a shear modulus obtained by prestationary experiments, in inflammatory and non-inflammatory synovial fluid effusions. The rheological properties show greater pathological change in the inflammatory synovial fluid samples than in the non-inflammatory. Variation in the hyaluronic acid concentration is only partly responsible for the pathological rheology. Initial experiments with a normalization method for the viscosity flow curves suggest the possibility of determining changes in polymerization or structure of the hyaluronic acid by rheological measurements.
mesh_terms: D001172:Arthritis, Rheumatoid / Q000473:pathology*; D006801:Humans; D006820:Hyaluronic Acid / Q000032:analysis; D008968:Molecular Conformation; D013582:Synovial Fluid / Q000473:pathology*; D014783:Viscosity
chemical_list: D006820:Hyaluronic Acid
vernacular_title: Rheologie und Hyaluronsäure in entzündlichen Gelenkergüssen.