Dr. Lighthart is an orthopaedic surgeon who has extensive training in hip and knee replacement surgery including minimally invasive surgery, partial knee replacement, hip resurfacing, anterior approach hip replacement and two incision hip replacement, hip and knee arthroscopy and complex reconstruction of the hip and knee.

He grew up in Buffalo New York, went to Allegheny College in Meadville, Pennsylvania and then returned to Buffalo for medical school. After that, he spent six years training in orthopedic surgery at Union Memorial Hospital, Johns Hopkins University and The University of Maryland Shock Trauma Center in Baltimore, Maryland. He then spent an additional year receiving fellowship training in hip and knee replacement surgery at Rush University and Central Dupage Hospitals in Chicago, Illinois. Dr. Lighthart was head of the Joint Replacement Team at Vermont Orthopaedics Clinic and Rutland Regional Medical Center for fourteen years before moving to Jackson.