A 13-year-old boy with BMI at the 97th percentile has 2 months of hip and knee pain with a limp. Examination shows limited internal rotation of the

Question

A 13-year-old boy with BMI at the 97th percentile has 2 months of hip and knee pain with a limp. Examination shows limited internal rotation of the hip and obligate external rotation during flexion. He is afebrile. Which of the following is the most likely diagnosis?

Accepted Answer

Slipped capital femoral epiphysis

Answer

Transient synovitis

Answer

Osgood-Schlatter disease

Answer

Septic arthritis

Answer

Legg-Calvé-Perthes disease

Slipped capital femoral epiphysis — USMLE Step 3 MCQ

A 13-year-old boy with BMI at the 97th percentile has 2 months of hip and knee pain with a limp. Examination shows limited internal rotation of the hip and obligate external rotation during flexion. He is afebrile. Which of the following is the most likely diagnosis?