TThis podcast covers the JBJS issue for May 2013. Featured are articles covering: Risk Factors Associated with Deep Surgical Site Infections After Primary Total Knee Arthroplasty; Use of Erythromycin and Colistin-Loaded Cement in TKA Does Not Reduce Incidence of Infection; recorded commentary by Dr. Roberts; Adverse Tissue Reactions from Modular Neck Corrosion in THA; The Effect of rhBMP-2 in Single-Level Posterior Lumbar Interbody Arthrodesis; recorded commentary by Dr. Bolesta.