MUSC Health Orthopaedics & Sports Medicine - Lancaster

Dr. Aran O'Malley is a board-certified orthopaedic surgeon with fellowship training in sports medicine, arthroscopy, shoulder surgery, and knee surgery. He provides comprehensive orthopaedic care for patients of all ages, helping individuals recover from injuries, relieve pain, restore function, and return to the activities they enjoy most. His clinical interests include sports medicine, shoulder and knee conditions, arthroscopic procedures, joint replacement, and general orthopaedics. With additional board certification in Orthopaedic Sports Medicine, Dr. O'Malley brings advanced expertise in the treatment of both recreational and competitive athletes, while also caring for patients seeking relief from everyday joint and mobility concerns. A Charlotte native, Dr. O'Malley has cared for patients in Lancaster since 2009 and is committed to providing high-quality, patient-centered care close to home. He earned his undergraduate degree from Vanderbilt University and his medical degree from the University of North Carolina School of Medicine before completing orthopaedic residency training at the renowned Campbell Clinic in Memphis, Tennessee. He then completed advanced fellowship training in shoulder surgery, arthroscopy, and sports medicine at Stanford University Medical Center. Throughout his career, Dr. O'Malley has cared for athletes at all levels, including collegiate and professional competitors, and remains passionate about helping every patient achieve the best possible outcome and return to the activities that matter most to them.

Dr. Mitchell Oetken is a board-certified orthopaedic surgeon dedicated to helping patients reduce pain, restore mobility, and return to the activities they enjoy most. He specializes in joint replacement, sports medicine, orthopaedic trauma, and minimally invasive procedures, with expertise in robotic-assisted surgery, anterior approach total hip replacement, partial and total knee replacement, and anatomic and reverse total shoulder replacement. Dr. Oetken believes in partnering with patients to develop personalized treatment plans that improve quality of life and help them stay active at every stage of life. A former collegiate basketball player, Dr. Oetken earned a Bachelor of Science in Biology from Northland College before pursuing postgraduate studies at Logan College of Chiropractic. He went on to earn his medical degree from Lincoln Memorial University, graduating with Sigma Sigma Phi honors and recognition as Anatomy Student of the Year. He completed his orthopaedic surgery residency at Community Memorial Hospital in California and received additional training at Children's Hospital of Orange County, Ventura County Medical Center, and Cedars-Sinai Medical Center. Prior to joining MUSC Health, Dr. Oetken practiced in California and Indiana, where he was recognized as a Top Doctor. He also served as team physician for multiple high school athletic programs and now supports student-athletes through MUSC Health's partnership with Lancaster County schools. Beyond caring for patients, Dr. Oetken is passionate about serving the communities where he lives and works. He has been involved in community development initiatives and local government and values building strong relationships throughout the region. In his free time, he enjoys spending time with his wife, daughters, and two Labradoodles, as well as biking, basketball, traveling, and exploring the outdoors.

Dr. Matthew Geswell is a fellowship-trained orthopaedic surgeon specializing in sports medicine and the care of injuries and conditions affecting the joints, muscles, bones, and ligaments. A former collegiate soccer player and team captain, Dr. Geswell understands the importance of staying active and helping patients return to the activities they enjoy most. He cares for athletes and active individuals of all ages, providing personalized treatment for sports injuries, joint pain, fractures, and other orthopaedic conditions. His clinical interests include sports medicine, arthroscopic procedures of the knee, shoulder, hip, ankle, and elbow, fracture care, and knee and shoulder joint replacement. Prior to joining MUSC Health, Dr. Geswell earned his medical degree from New York Medical College, completed his orthopaedic surgery residency at Geisinger Medical Center, where he served as chief resident, and completed fellowship training in Orthopaedic Sports Medicine at Lenox Hill Hospital. During his fellowship, he worked alongside the team physicians for the New York Jets. He is committed to delivering compassionate, patient-centered care that helps patients restore mobility, reduce pain, and get back to living life to the fullest. In his free time, Dr. Geswell enjoys spending time outdoors, golfing, skiing, fishing, boating, running, and following sports.