Orthopedists examine patients, educate them on their condition, and then determine the best treatment plan for that disease or injury, which may include medication, exercise, or surgery. Many orthopedists specialize in a particular part of the body, such as the spine, knee, or feet and ankles. When surgery is required, orthopedists perform many different procedures to treat a variety of issues. These include arthroscopy-- a process that uses specialized cameras and equipment to diagnose and treat problems inside a joint, and internal fixation-a method to hold broken pieces of bone in their proper position using metal plates, pins, or screws until the bone is healed. Orthopedists are also often on-call and may be called into the hospital for emergency surgeries due to car accidents or other traumas. Some orthopedists choose to specialize further in areas such as pediatric care, joint reconstruction, oncological orthopedics, and sports medicine.