Sonographic evaluation of supraspinatus cross-sectional area in collegiate baseball players.

Objective: To establish the normal thickness of the supraspinatus tendon in collegiate baseball players with the use of ultrasound and to determine whether there are any significant differences between the dominant and nondominant supraspinatus thickness.

Design: A cross-sectional observational study.

Setting: An outpatient clinical setting.

Common injuries of the foot and ankle in the child and adolescent athlete.

A myriad problems in the foot and ankle are specific to child and adolescent athletes. The anatomy of young athletes with respect to the presence of a growth plate makes their injury patterns different from those seen in adults. The main general injury patterns seen in the feet and ankles of children are related to growth and development or occur from overuse syndromes or acute trauma.