A 69-year-old multipara presented with a history suggestive of genuine stress incontinence. The diagnosis was confirmed urodynamically, and the woman underwent a transobturator sling procedure as described by Delorme. 1 A monofilament polypropylene tape was used (Aris TM Trans-obturator tape; Porges, Le Plessis Robinson, France). Immediately postoperatively, a catheter was passed and clear urine obtained. The procedure was uneventful, and the woman was discharged later the same day.Five days later, the woman was reviewed and was found to be generally unwell. She had no episodes of incontinence since the procedure. On examination, her abdomen was found to be erythematous and tender in the suprapubic area. Her temperature at this time was 38.3°C. A diagnosis of cellulitis was made, and the woman was commenced on erythromycin intravenously (as she was allergic to penicillin) and admitted to the hospital.She underwent a cystoscopy that confirmed a bladder perforation and had the tape completely removed. This was performed by opening the vaginal incision, grasping the tape and sliding it out of position. The vaginal incision was then resutured with interrupted stitches. The urine was extremely offensive and the tape obviously infected.Over the following 2 days, the erythema of her lower abdomen spread upward to the level of the umbilicus, and after consultation with a consultant microbiologist, the parenteral antibiotics were changed to cefotaxime, gentamicin and metronidazole. She became apyrexial on this regimen.Five days later, despite an improvement in her general condition and remaining apyrexial, the skin over the lower abdomen became crepitant and began to slough (Figure 1). A decision was made to perform a surgical debridement which showed a large quantity of pus and during which, 488 g of tissue was removed including skin and subcutaneous fat (Figures 2 and 3). The affected area extended from the level of the umbilicus to the suprapubic area and laterally extended beyond the midaxillary line bilaterally. The level of the peritoneum had not been breached and so intraperitoneal exploration was avoided. The woman returned to theatre 24 hours later for a further exploration and no further debridement was necessary. Culture of the pus grew Enterococcus sensitive to amoxycillin, gentamicin, teicoplanin and vancomycin. Three weeks later, a final debridement and split-skin graft was performed. The woman was finally discharged 2 weeks later, a total of 7 weeks after her original operation.
DiscussionThe transobturator sling procedure is a relatively new minimally invasive surgical procedure devised for the treatment of genuine stress incontinence. 1 Its transperineal passage is said to minimise or avoid damage of intra-abdominal structures including the bladder. 2 There have been several reports of complications following this technique, including bladder injury, 3 urethral erosion, 4 obturator infected haematoma 5 and vaginal wall erosion. 4 Transobturator tape placement involves transperineal passage of the prolene...