316. S/sx septic arthritis / Can septic arthritis be ruled out by absence of effusion on ultrasound? April 10th, 2008 by reuben in .arthritis Back Top Tags: card 315. Complications of acute osteomyelitis / Ddx osteomyelitis 317. Causes of false negative culture in septic arthritis / Glucose value in joint fluid analysis suggestive of septic arthritis / Value of joint fluid analysis in ruling out septic arthritis Leave a Reply Cancel reply Please post any discussion to the emupdates Reddit page.