Experience the Difference A doctor's education and experience make a vital difference in patient outcomes and results. The success rate for total hip and knee replacements at The Kennedy Center is over 95% at ten years. One reason for The Kennedy Center's success is the strong team involvement of The Kennedy Center staff and the staff at Mercy. From the moment you walk in the door, you are greeted by our friendly, knowledgeable personnel. Dr. McLaughlin, his staff and the Mercy Medical Center nursing team will thoroughly explain the surgery you require. They will be with you to answer your questions from pre-operative consultations to post-operative recovery and rehabilitation.