The procedures of the two groups were performed blindly by the same rheumatologist with 10 years of experience in interventional rheumatology after rigorous antisepsis with alcoholic 0.5% chlorhexidine. Sterile insulin syringe BD ™ Ultra Fine needles 8 mm x 0.3 mm 30 G) was used in all patients. The anatomical place used for needle entry was located in the dorsal - lateral joint aspect 14 (Figure 1). After the procedure, the injected joint was immobilized for 48 hours, in both groups.