This podcast covers the JBJS issue for May 2012. Featured are articles covering: Effectiveness of Anterior Cruciate Ligament Injury Prevention Training Programs; recorded commentary by Dr. Wright; Evolution of Nonoperatively Treated Symptomatic Isolated Full-Thickness Supraspinatus Tears; Diagnostic Performance of Early Migration as Predictor of Aseptic Loosening of Acetabular Cups; recorded commentary by Dr. Stiehl; Intra-Articular Morphology of the Knee Joint in Children with Blount Disease - A Case-Control Study Using MRI.