title: Treatment of chronic pilonidal sinus with local anaesthesia: a randomized trial of closed compared with open technique.
abstract: OBJECTIVE
  To compare open with closed treatment of chronic pilonidal sinus.
  
  
  METHODS
  From 1993 to 1996, 100 patients were submitted to excision of chronic pilonidal sinus, with local anaesthesia and were randomized in two groups: group A in which open treatment and group B in which direct suture were performed. The follow-up, ranging from 37 to 89 months, was performed by outpatient visits or by phone.
  
  
  RESULTS
  Short-term results showed 6 (12.0%) post-operative complications in group A vs 10 (20.0%) in group B. Long-term results showed 9 (18.0%) complications in group A vs 7 (14.0%) in group B. Mean wound healing was 58 days (range: 29-93) in group A vs 12 (range: 9-61) in group B. The return to normal activity was 25.7 (range: 11-77) vs 10.4 (range: 5-32). Wound healing and the return to normal activity were the only statistically significant differences.
  
  
  CONCLUSIONS
  Regarding morbidity neither technique has particular advantages over the other. The closed technique produced quicker wound healing and a quicker return to normal activity.
authors.affiliation: Section of General Surgery, Vascular Surgery and Clinical Oncology, Department of Applications in Surgery of Innovative Technologies, University of Bari School of Medicine, Bari, Italy. mario.testini@tin.it
authors.forename: M
authors.initials: M
authors.lastname: Testini
authors.forename: G
authors.initials: G
authors.lastname: Piccinni
authors.forename: S
authors.initials: S
authors.lastname: Miniello
authors.forename: B
authors.initials: B
authors.lastname: Di Venere
authors.forename: G
authors.initials: G
authors.lastname: Lissidini
authors.forename: V
authors.initials: V
authors.lastname: Nicolardi
authors.forename: G M
authors.initials: GM
authors.lastname: Bonomo