Abstract. Laparoscopic surgery for colorectal cancer (CRC) has recently gained in popularity due to the fewer trocars and shorter incision, leading to reduced wound pain and improved cosmetic outcome. In July, 2013, reduced-port surgery (RPS) was introduced and has been performed thereafter in our hospital. An umbilical incision is used for a main port in RPS, through which the specimen is removed and the anastomosis is performed. In order to make the incision shorter, we introduced the Z skin incision in RPS. In this study, we aimed to discuss this method and evaluate the short-term outcome. Among CRC patients undergoing RPS, Z skin incision (n=14) was compared to conventional skin incision (n=15). The clinical and surgical factors were evaluated and there were no significant differences in terms of gender, age, body mass index, tumor site, procedure, operative time, blood loss or complications between the two groups. The median incision length at the umbilicus was significantly shorter in the Z incision group (P=0.004). Particularly in functional end-to-end anastomosis, the median incision length was 2.5 cm in the Z skin incision group and 4.0 cm in the conventional incision group (P=0.018). In conclusion, Z skin incision is a useful technique for achieving an effective length of skin incision in RPS for CRC.
IntroductionIn recent years, laparoscopic surgery has been widely performed for colorectal cancer (CRC) in a number of institutions. It has been reported that the efficacy of laparoscopic surgery is due to the reduced blood loss, shorter hospital stay, decreased postoperative pain, earlier postoperative recovery and improved quality of life, with oncological outcomes comparable to those with open surgery (1-3). Conventional multiport laparoscopic surgery for CRC is mainly performed using five trocars, namely one for the laparoscopist, two for the operator and two for the assistant. Recently, efforts have been made to reduce the number of trocars and perform a shorter skin incision, in order to reduce wound pain and provide a better cosmetic outcome; therefore, single-incision laparoscopic surgery (SILS) and reduced-port surgery (RPS) have been applied in colectomies (3-7). In SILS and RPS, an umbilical incision is used for multi-trocar access, to remove the specimen and perform the anastomosis; thus, the length of the umbilical skin incision depends on these procedures. A shorter umbilical skin incision may reduce postoperative pain and provide a better cosmetic outcome. A Z-shaped skin incision has been used in orthopedics and plastic surgery (8). The Z-shaped skin incision is used for the relaxation of scar contractures and it may provide an incision that is longer compared with a straight line (9). We attempted to perform a shorter umbilical incision using this method and we herein report the usefulness of the Z skin incision in RPS for CRC.
Patients and methods
Patients.A total of 33 patients underwent RPS for CRC at the Osaka Medical Center for Cancer and Cardiovascular Diseases (Osaka, Japan) betwee...