[Results of the Limberg flap procedure in acute and chronic pilonidal abscesses].

Background: A number of different treatment algorithms are recommended for the treatment of an acute pilonidal abscess and a chronic pilonidal sinus. While a 1-stage surgical procedure using excision or plastic reconstruction according to Limberg or Karydakis is suggested for chronic pilonidal sinus, a 2‑stage procedure is recommended for an acute pilonidal abscess. The aim of this study was to compare the results of the 1‑stage surgery with plastic reconstruction according to Limberg for acute pilonidal abscess and chronic pilonidal sinus in terms of recurrence, disorders of wound healing, inpatient length of stay and patient satisfaction.

Methods: From 2009 to 2014 a total of 39 patients were included in this prospective observational study: 21 patients with acute pilonidal abscess and 18 patients with chronic pilonidal sinus. All patients were surgically treated with a 1‑stage procedure using the Limberg flap method. The groups were compared in terms of postoperative complication rates and frequency of recurrence.

Results: Both groups were basically comparable with respect to demographic characteristics and risk factor profiles. Analysis of the postoperative results showed a comparable rate of postoperative wound healing disorders (10% vs. 17%, p = 0.647). In the group with acute pilonidal abscesses there was no recurrence during the observational period, while in the chronic pilonidal sinus group there were 2 (11%) recurrences (p = 0.206).

Conclusion: The results of the Limberg flap procedure regarding acute pilonidal abscesses were comparable to those of chronic pilonidal sinus. The results of this study show a trend to a lower risk of recurrence. The use of the Limberg flaps therefore also seems to be an adequate treatment option in an acute infection situation.