About the Author
Beth A. Kaplanek is a pilates instructor and practitioner of pilates for rehabilitation at the Pilates Centre of Long Island, New York. Kaplanek served for 20 years as a registered nurse. Brett R. Levine is an orthopaedic surgeon with a sub-specialty in adult reconstruction. He is a physician and assistant professor at Rush University Medical Centre in Chicago, where he specialises in complex revision hip and knee reconstruction. William L. Jaffe is a clinical professor and the vice chairman of the department of orthopaedic surgery at New York University Hospital for Joint Diseases in New York City.