Review Question - QID 7377

A 12-year-old gymnast has had elbow pain for 4 weeks. She denies any specific trauma to the elbow. Examination reveals lateral pain and no instability on testing. Range of motion is as follows: 15 degrees, loss of elbow extension, normal flexion, and normal pronation and supination. Radiographs reveal a 3- x 7-mm radiolucency of the capitellum. A T1-weighted MRI scan reveals a single solitary lesion, and T2-weighted images show no signal around the lesion. There are no intra-articular loose bodies. Appropriate management should include which of the following?