Weak Points of a Stapled Side-to-Side Anastomosis.

With two-row stapling devices, the side and the crotch of the staple line are equally weak. On the other hand, three-row staplers have not only greater burst pressures, but also the only weak point is the crotch. Thus, crotch reinforcement in side- to-side stapled anastomoses is critical regardless of the amount of rows used.