Ligation of the intersphincteric fistula tract plus a bioprosthetic anal fistula plug (LIFT-Plug): a new technique for fistula-in-ano
The source of human acellular dermal matrix: Ruinuo®, Qingyuanweiye Bio-Tissue Engineering Ltd, Beijing, China.
Presented at the meeting of Chinese Surgical Week 2011, Beijing, China, 7–10 September 2011.
Ligation of the intersphincteric fistula tract and reinforcement with a bioprosthetic graft are two recently reported procedures that have shown promise in the treatment of anal fistula. This study was undertaken to validate combining ligation of the intersphincteric fistula tract plus bioprosthetic anal fistula plug and report our preliminary results and experience.
Twenty-one patients with transsphincteric anal fistula were treated with ligation of the intersphincteric fistula tract plus concurrent bioprosthetic plug of the anal fistula. We evaluated healing time, fistula closure rate and postoperative anal function according to the Wexner continence score.
No mortality or major complications were observed. Median operative time was 20 (range 15–40) min. After a median follow-up of 14 (range 12–15) months, the overall success rate was 95% (20/21), with a median healing time of 2 (range 2–3) weeks for external anal fistula opening and 4 (range 3–7) weeks for intersphincteric groove incision. Only 1 (5%) patient reported rare incontinence for gas postoperatively (Wexner score 1).
Ligation of the intersphincteric fistula tract plus a bioprosthetic anal fistula plug is an easy, safe, effective and useful alternative in the management of anal fistula. Further randomized controlled studies are necessary to better evaluate long-term results.