Follow established surgical techniques during the operation. Examine patient to obtain information on medical condition and surgical risk. Operate on patients to correct deformities, repair injuries, prevent and treat diseases, or improve or restore patients' functions. Analyze patient's medical history, medication allergies, physical condition, and examination results to verify operation's necessity and to determine best procedure. Prescribe preoperative and postoperative treatments and procedures, such as sedatives, diets, antibiotics, and preparation and treatment of the patient's operative area. Diagnose bodily disorders and orthopedic conditions and provide treatments, such as medicines and surgeries, in clinics, hospital wards, and operating rooms. Provide consultation and surgical assistance to other physicians and surgeons. Direct and coordinate activities of nurses, assistants, specialists, residents, and other medical staff. Refer patient to medical specialist or other practitioners when necessary. Prepare case histories. Manage surgery services, including planning, scheduling and coordination, determination of procedures, and procurement of supplies and equipment. Examine instruments, equipment, and operating room to ensure sterility.