differential diagnosis
Last reviewed 01/2018
This includes:
- septic arthritis - leucocytosis and other evidence of infection
- Perthes disease - persistent pain and/or effusion ie. more than two weeks
- slipped upper femoral epiphysis - characteristic x-ray
- osteomyelitis - evidence of infection
- trauma - history
- tuberculous synovitis - raised ESR and positive Heaf test