ABSTRACT
INTRODUCTION: Sacrospinofixation is used for fundic vaginal vault's prolapse or to prevent mid-level or posterior prolapse. It can lead to complications such as dyspareunia, chronic pain, and quality of life impairment. Anchoring a posterior isthmic sling to the two sacrospinous ligaments is an alternative to classic Richter's sacrospinofixation. Objective of this study is to report the first cases of vaginal posterior isthmic slings. METHODS: This study is retrospective and unicentric. It includes women who had posterior isthmic sling at the time of a surgery with a mesh for anterior prolapse by vaginal way between 2010 and 2016 in the gynecologic department of a teaching hospital. Report of efficacy and tolerance was performed. RESULTS: Between 2010 and 2016, 53 women were included with a posterior isthmic sling and a mesh for an anterior prolapse. POP-Q evolution during the follow-up in the posterior isthmic sling group assess of a good efficacy of the sling. Four women (7.5%) required second surgery in 28 months following initial surgery (only 1 for excision). Four women (7.5%) had a prolapse recurrence in a mean time of 30 months without recurrent surgery. Women's satisfaction level was high (8.0/10 [7,1-8,8]). CONCLUSION: Efficacy and tolerance of the posterior isthmic sling seems good. It might then be an option for mid-level prolapses in case of vaginal surgery with mesh for anterior prolapse. A non-inferiority trial should be performed to be able to conclude on the place of this alternative to Richter's sacrospinofixation.