Multicentre, randomised trial comparing acellular porcine collagen implant versus gluteus maximus myocutaneous flap for reconstruction of the pelvic floor after extended abdominoperineal excision of rectum: study protocol for the Nordic Extended Abdominoperineal Excision (NEAPE) study

Abstract

IntroductionDifferent surgical techniques are used to cover the defect in the floor of the lesser pelvis after an ‘extralevator’ or ‘extended’ abdominoperineal excision for advanced rectal cancer. However, these operations...