Abstract
Orthopedic surgeons meet patients with synovitis in joints in their daily practice. One of the fundamental steps which needs to be decided is whether the synovitis is a pyogenic complication or a reactive synovitis.
Ultrastructural analysis is an accessible, rapid and affordable method which can provide this decision. The results from cytological-energy analysis are known within a few hours after the puncture so this method can promptly exclude pyogenic compli-cations.
This exclusion of an ongoing inflammatory process in the synovial fluid equally clarifies this in other extravascular body fluids. The cytological-energy analysis of the synovial fluid may also be used in the diagnostic process and typing of the tumor and promote the start of treatment.