<prompt> Answer this question truthfullyWhich type of arthritis is identified by the presence of non-inflammatory synovial fluid with a white blood cell count of less than 2000mm3, osteoarthritis or rheumatoid arthritis?  <response>: <reason> Osteoarthritis is the type of arthritis that is characterized by non-inflammatory synovial fluid with a white blood cell count of less than 2000mm3. 