Porcine skin collagen implants to prevent anterior vaginal wall prolapse recurrence: a multicenter, randomized study

Michele Meschia, Paola Pifarotti, Francesco Bernasconi, Fabio Magatti, Diego Riva, Erwin Kocjancic
Journal of Urology 2007, 177 (1): 192-5

PURPOSE: We evaluated the efficacy of the Pelvicol porcine collagen implant for preventing recurrent anterior vaginal wall prolapse in women undergoing primary surgery for pelvic organ prolapse.

MATERIALS AND METHODS: This was a prospective, randomized, multicenter trial in 206 women with stage II or greater anterior vaginal wall prolapse (point Ba -1 or greater) according to the pelvic organ prolapse quantification system. The patients were randomly assigned to undergo anterior vaginal repair or the same procedure with Pelvicol implant reinforcement. SPSS software was used for data analysis.

RESULTS: A total of 201 women were available for surgical outcome analysis, including 98 and 103 in the implant and no implant groups, respectively. All completed the 1-year followup visit. Most women were satisfied with the postoperative condition with a significant decrease in the visual analog scale score in each group (p <0.001). Anatomical anterior recurrence (point Ba greater than -1) was observed in 7 women (7%) in the implant group and in 20 (19%) in the other groups (OR 3.13, 95% CI 1.26-7.78, p = 0.019). Additionally, there were 11 women (3 and 8, respectively, or 5%) with posterior recurrence and 6 (3 per group or 3%) with unsatisfactory results at the upper vaginal segment. One patient who received a porcine implant had vaginal extrusion of the mesh 1 month after surgery.

CONCLUSIONS: Our data show that the Pelvicol implant can be easily and readily used to augment and reinforce anterior colporrhaphy. The prolapse recurrence rate was considerably lower in the implant group compared with outcomes in patients treated with simple anterior repair.

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