Laparoscopic cholecystectomy is the most common laparoscopic procedure performed. Treatment is surgical, potentially with a laparoscopic resection. Appendectomy can be performed through open or laparoscopic surgery. A partial nephrectomy can be performed through an open, laparoscopic or robotic approach. The different surgical techniques are the open and laparoscopic method. Surgery is increasingly performed via laparoscopic techniques. The practice is currently used by surgical teams in order to perform laparoscopic surgery. Either may be done by the traditional laparotomy or by laparoscopic surgery. Subcutaneous emphysema can be a complication of CO insufflation with laparoscopic surgery. Repair may be done by open surgery or laparoscopic surgery. Laparoscopic surgery generally has less pain following the procedure. Repair may be done by open surgery or by laparoscopic surgery. These techniques are similar to the techniques used in laparoscopic gallbladder surgery. Trocars are placed through the abdomen during laparoscopic surgery.