Board certified in orthopedic surgery, Dr. McKenna is the chief medical officer and founder of McKenna Orthopedics. He has performed over 20,000 surgeries and used cellular therapy on over 5000 patients. Dr. McKenna is a co-founder of Biologic Therapies, a product development and research company dedicated to the advancement of autologous adult stem cell therapy. He patented the BioMac™ bone marrow aspiration catheter, an improved method of harvesting bone marrow, now becoming the standard for extraction.