What are the possible complications of delayed analysis of the synovial fluid following shoulder arthrocentesis?

Updated: Dec 10, 2019
  • Author: Stephen Kishner, MD, MHA; Chief Editor: Erik D Schraga, MD  more...
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Synovial fluid should be analyzed immediately after arthrocentesis. Delayed analysis may cause:

  • Appearance of artifactual crystals
  • Decrease in leukocyte count (from cell disruption)
  • Decrease in number of crystals (especially calcium pyrophosphate dihydrate) [5]

Please refer to Joint Fluid Interpretation / Overview/Joint Fluid Interpretation for additional information.

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