Book excerpt: This book focuses on the evaluation and treatment of a wide range of sports injuries in relation to the Tanner stage of sexual development in young athletes. A series of detailed chapters address the injuries likely to be encountered in different parts of the body, including the spine, shoulder, elbow, wrist and hand, hip, knee, ankle, and feet. Among the topics that receive particular attention are epiphyseal-physeal injuries, capsular ligament tears and the impact of their treatment on joint and bone development, and stress syndromes of the musculoskeletal system. Helpful algorithms covering the diagnosis and treatment of ligament tears are included, and advice is provided on when to return an athlete to training. One chapter is devoted to non-sports-related pathologies that have to be considered in the differential diagnosis of sports injuries in adolescents. The contributors to this volume are all recognized leaders in their subspecialty who explain their own treatment preferences.