Ortho Dx: Elbow pain in the throwing athlete

A 17-year-old male presents with right elbow pain for several months. He plays baseball 7 months of the year and either pitches or plays third base. His pain is made worse when throwing, and he has lost velocity on his fastball. Ice and nonsteroidal anti-inflammatory drugs (NSAIDs) provide little relief. He tried taking a few months off from pitching, but ...