title: Continence is improved after the Ripstein rectopexy. Different mechanizms in rectal prolapse and rectal intussusception?
abstract: OBJECTIVE
  This study was undertaken to evaluate anal manometric changes after Ripstein's operation for rectal prolapse and rectal intussusception and to study the clinical outcome following the operation, with special reference to anal incontinence.
  
  
  METHODS
  Forty-two patients with rectal prolapse or rectal intussusception were subjected to anorectal manometry preoperatively and seven days and six months postoperatively. A detailed history was obtained from each patient preoperatively and six months postoperatively.
  
  
  RESULTS
  Preoperatively, patients with rectal intussusception had higher maximum resting pressure (MRP) (52+/- 23 mmHg) than patients with rectal prolapse (34 +/- 20 mmHg; P < 0.01). In the group of patients with rectal prolapse, there was a postoperative increase in MRP after six months (P < 0.001) but not after seven days. Maximum squeeze pressure (MSP) did not increase. Neither MRP nor MSP increased postoperatively in patients with internal rectal procidentia. Continence was improved postoperatively both in patients with rectal prolapse (P < 0.01) and rectal intussusception (P < 0.01). There was no postoperative increase in rectal emptying difficulties.
  
  
  CONCLUSIONS
  Ripstein's operation often improved anal continence in patients with rectal prolapse and rectal intussusception. This improvement was accompanied by increased MRP in patients with rectal prolapse, indicating recovery of internal anal sphincter function. No postoperative increase in MRP was found in patinets with rectal intussusception. This suggests an alternate mechanism of improvement in patients with rectal intussusception.
authors.affiliation: Department of Surgery, Karolinska Institutet at Danderyd Hospital, Stockholm, Sweden.
authors.forename: I
authors.initials: I
authors.lastname: Schultz
authors.forename: A
authors.initials: A
authors.lastname: Mellgren
authors.forename: A
authors.initials: A
authors.lastname: Dolk
authors.forename: C
authors.initials: C
authors.lastname: Johansson
authors.forename: B
authors.initials: B
authors.lastname: Holmström
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005242:Fecal Incontinence / Q000209:etiology*; D005260:Female; D006801:Humans; D007443:Intussusception / Q000150:complications / Q000503:physiopathology / Q000601:surgery*; D008297:Male; D008365:Manometry; D008875:Middle Aged; D011312:Pressure; D011446:Prospective Studies; D012002:Rectal Diseases / Q000150:complications / Q000503:physiopathology / Q000601:surgery*; D012005:Rectal Prolapse / Q000150:complications / Q000503:physiopathology / Q000601:surgery*; D016896:Treatment Outcome