Energy source instruments for laparoscopic colectomy.

Background: Colectomy is a common procedures for both benign and malignant conditions. Increasingly more colectomy has been performed laparoscopically and there are several available instruments being used for this procedure. Of which three common dissecting instruments are: monopolar electrocautery scissors (MES), ultrasonic coagulating shears (UCS) and electrothermal bipolar vessel sealers (EBVS).

Incision and drainage of perianal abscess with or without treatment of anal fistula.

Background: The perianal abscess is a common surgical problem. A third of perianal abscesses may manifest a fistula-in-ano which increases the risk of abscess recurrence requiring repeat surgical drainage. Treating the fistula at the same time as incision and drainage of the abscess may reduce the likelihood of recurrent abscess and the need for repeat surgery.