A 10-year-old boy was presented in an emergency department for acute pain in the right knee without a known injury. However, he has been visiting pediatric orthopedist for the same problem. Patient History (Obtained from Pediatric Orthopedist) (2-3 months before the presentation in the ED) The boy was experiencing a knee pain which was diffuse, sharp, and worsening with movement. Initial imaging of the knee was negative. So he was diagnosed with tendinitis and prescribed NSAIDs and physical therapy.
However, he continued to have knee pain. The orthopedist diagnosed him with Legg-Clave Perthes disease and recommended crutches and non-weight bearing. The patient has a history of asthma and has been on aerosol treatment (fluticasone 110 mcg/actuation inhaler) since he was 3 years old. In last 7 years, he had been on a 5-day oral prednisone for 6 different occasions. Patient at Emergency…