We found an expert who was a Registered Nurse, Certified Nurse Operating Room, and Certified Legal Nurse Consultant and had been a circulating and scrubbing surgical operating room nurse for 30 years. She was also an Adjunct Assistant Professor and Clinical Instructor of Perioperative Nursing and Medical Surgical. A member of AORN, she had expertise in operating room sterile technique, gowning and AORN guidelines. Additionally, she had experience assisting surgical personnel with the head gear and gown assemblies used for orthopedic procedures. Finally, she had extensive experience as an expert witness and had been deposed 175 times and had testified at trial 30 times.