If you play sports, are in your 40s or 50s, or have family and friends who are physically active, you’ve probably heard of the word "orthopedics.” But do you know what orthopedic doctors really do?

United Surgical Partners International, the ASC arm of Nashville, Tenn.-based Tenet Healthcare, is sharpening its strategic focus on orthopedic-driven centers, executives said during Tenet’s April 29 ...