Synovial Fluid Lactate Determinations as a Diagnostic Aid in Cases of Monoarticular Arthritis

Abstract

The concentration of synovial fluid lactate was determined by an enzymatic kit method in 16 patients with various types of monoarticular arthritis and in 2 patients with noninflammatory lesions and no joint effusion. Lactate concentrations in control cases were 1.2 mmol/l, in septic arthritis above 10 mmol/l, in pseudogout and yersinia arthritis around 7 mmol/l, and in other cases of inflammatory, nonseptic arthritis around 3.0 mmol/l.