Laparoscopic low rectal anastomosis using a new stapling device: early experience with the Contour stapler.

Rectal cancer was initially considered a contraindication for the laparoscopic approach to low rectal resection due to the greater difficulty of deep pelvic dissection, but several studies have demonstrated its potential clinical advantages. The currently accepted technique for this intervention includes total mesorectal excision, which entails complete dissection of the mesorectum followed by low transection of the rectum. The laparoscopic approach provides good visualization and magnification of the operative field, but transection of the rectum may be more difficult. This is illustrated by the conversion rate of around 15% in most series, mainly due to technical difficulties. Contour placement may overcome these difficulties. Two key points support the interest in the use of devices with the features of the Contour. First, the current feeling and evidence indicate that with presently available laparoscopic devices, the section of the low rectum in selected patients (males and mid-third rectal tumors) is often difficult. Secondly, although the Contour device was designed for open surgery, surgeons have the intuitive perception that it perfectly accomplishes the functions an ideal laparoscopic stapler should include. There is clearly a need for more appropriate laparoscopic instruments for low rectal transection. The Contour device could be considered a prototype because it meets the surgeon's requirements when operating on the low rectum, providing one shot, simultaneous sewing and cutting function and a symmetric rectum section. However, a number of technical modifications would enhance the utility of the instrument in this setting.