Comparison of Quality of Life and Functionnal Resultats After Sigmodectomy Between Diverticulitis and Cancer

Inclusion Criteria : * Adults * Patients who undergo sigmoidectomy with end to end anastomosis for sigmoid cancer and symptomatic diverticulitis * Preservation of the left colic angle for upper surgical resection * Lower surgical resection located \< 5cm to the recto-sigmoid junction Exclusion Criteria : * Minors * Adults under guardianship * Protected persons * Patients who undergo sigmoidectomy without anastomosis (ileostomy or Hartmann surgery) * Patients who undergo surgery in emergency * Cancer of recto-sigmoid junction * Patients who undergo secondarily a stoma