Sedimentation Rate of Blood Corpuscles in Synovial Fluid and in Plasma

Synovial fluid sedimentation in the immobile patient: a commentary on modern septic arthritis and the addition of a new variable confounding diagnosis

“…There are, however, reports of in vitro centrifugal sedimentation of synovial fluid for biochemical analysis, and as such, this report is in agreement with this already documented in vitro occurrence. 16,17 In the above case, it was fortuitous that the joint was completely aspirated. If only the initial 25 mL had been taken, the initial diagnosis may have been misguided by the low sWCC of 2.6 × 10 9 /L, and septic arthritis not suspected.…”