We see patients weekdays from 5:30 p.m. to 8:30 p.m. and Saturday 9:00 a.m. to 1:00 p.m. at our South County location. Signature Orthopedics South County is part of one of the largest orthopedic practices in Saint Louis. Our overall practice has more 40 orthopedic specialists who treat adult and pediatric patients at 13 locations..