Treatment of grade III and IV haemorrhoidal disease with PPH or THD. A randomized trial on postoperative complications and short-term results

Purpose Haemorrhoidal disease is a frequently occurring entity in the western world. The Procedure for prolapse and haemorrhoids (PPH) and transanal haemorrhoidal dearterialisation (THD) are the most important surgical treatments that respect normal anal anatomy. This is the first randomized trial that compares both techniques in the treatment of grade III and IV haemorrhoids.