The diagnosis is a combination of clinical suspicion plus radiological investigation. Children with a<unk>  experience a decrease in their range of motion, and are often unable to complete hip flexion or fully rotate the hip inward. 20–50% of<unk>  are missed or misdiagnosed on their first presentation to a medical facility.<unk> s may be initially overlooked, because the first symptom is knee pain, referred from the hip. The knee is investigated and found to be normal. thumb The diagnosis requires x-rays of the pelvis, with anteriorposterior (AP) and frog-leg lateral views. The appearance of the head of the femur in relation to the shaft likens that of a "melting ice cream cone", visible with Klein's line. The severity of the disease can be measured using the Southwick angle. Classification * Atypical/Typical * Loder classification * Stable * Unstable, practically defined as when the patient is unable to ambulate even with crutches * Temporal * Acute * Chronic * Acute-on-chronic * Radiological * Grade I = 0–33% slippage * Grade II = 34–50% slippage * Grade III = >50% slippage
Slipped capital femoral epiphysis
Attenuated patella alta
Osteitis pubis
Retrocalcaneal bursitis
Luxating patella
Radial dysplasia
Multiple epiphyseal dysplasia
Calcaneal fracture