This study is based upon our collective experience with more than 3000
open herniorrhaphies, dissection of 99 cadavers from the external app
roach, and 39 cadavers from open dissections, including 14 laparoscopi
c dissections. These observations may be of use in avoiding pitfalls i
n hernioplasty, either from the classic external surgical approaches o
r those from within, whether transperitoneal or preperitoneal.