Background : Septic Arthritis is an acute infection of intra-arthicular space. Delay in diagnosis and in appropriate treatment may lead to prolongation of treatment duration and poor outcome. We decided to evaluate clinical aspects of this disease in our department pediatric department, Imam Khomeini Hospital complex, Tehran, Iran during a 10 years period.

Methods : In a retrospective cross-sectional study, 60 patients with age from 1 month to 14 year-old during 1996-2005 were evaluated. The demographics characteristics, clinical observations (signs & symptoms) and paraclinic values were gathered from medical records and analyzed with statistical tests.

Results : Pain and Swelling was seen in all, joint limited motion in 80% ( 50 cases) claudicating in 64% ( 38 cases), fever in 80% ( 48 cases), monoarticular disease in 80% ( 48 cases) and polyarticular one in 20% ( 12 cases) of them. Hip was most Common involved joint 62% ( 37 cases), elevated ESR was seen in all patients. CRP was positive in 85% ( 51 cases). Leuckocytosis was found in 65/8% ( 17 cases) of cases. In infectious cases, Staphylococcus aurous was responsible organism in 65.6% ( 16 cases), klebsiella in 12.4% ( 3 cases), Streptococcus pneumonia in 12.3% ( 3 cases), group b streptococcus in 4.1% ( 1 case), Hemophilus Influenza type b in 4.1% ( 1 case) of study patients. With therapy ESR was normalized in 64% ( 39 cases) and CRP was normalized in all patients.

Conclusions: In general, all children with complaint of fever, pain, and limited joint motion or claudicating should be suspected for septic arthritis.