Final answer:
In the surgery to remove an ovarian cyst via a Pfannensteil incision, sterile drapes are used to maintain a sterile field and expose only the necessary operative site.
Step-by-step explanation:
The removal of an ovarian cyst through a Pfannensteil incision involves a surgical procedure that is usually performed in a hospital setting under general anesthesia. The Pfannensteil incision is a type of horizontal cut made just above the pubic bone and often used in gynecological surgeries. The draping materials for this procedure would typically include sterile drapes to maintain a sterile field, prevent infection, and allow the surgeon access to the operative site. These drapes would cover the patient's body leaving only the incision area exposed. Additional surgical equipment might include scalpel, retractors, sutures, and possibly a laparoscope if it is decided intraoperative visualization is needed.