This podcast covers the JBJS issue for May 2016. Featured are articles covering Trend Toward High-Volume Hospitals and the Influence on Complications in Knee and Hip Arthroplasty; recorded commentary by Dr. Manning; Predictive Factors for Differentiating Between Septic Arthritis and Lyme Disease of the Knee in Children; Percent Body Fat Is More Predictive of Function After Total Joint Arthroplasty Than BMI; recorded commentary by Dr. Steinberg; R Outcomes for Hip Arthroscopy According to Sex and Age - A Comparative Matched-Group Analysis.