Posterior pelvic organ prolapse (pPOP) commonly occurs with apical prolapse, other vaginal compartment defects, and symptoms of defecatory dysfunction including obstructed defecation (OD). The indication for concomitant posterior repair (PR) during apical prolapse repair may be based on the presence or absence of symptoms. Some surgeons do not perform PR during repair of apical prolapse in the absence of symptoms. The Extended Colpopexy and Urinary Reduction Efforts (E-CARE) trial assessed the progression of posterior compartment prolapse and symptoms of OD after open abdominal sacrocolpopexy (ASC). Data from that study have been published in the primary article (Nygaard, JAMA 2013;309:2016). This secondary analysis of E-CARE data assessed the occurrence of pPOP and symptoms of OD in patients 5 years after open ASC. The study was designed to determine whether PR is necessary at the time of ASC. Participants with baseline and 5-year outcome data were divided into 3 groups using baseline posterior Pelvic Organ Prolapse Quantification points and concomitant PR: (1) no PR, Ap < 0; (2) no PR, Ap 0; and (3) +PR. Decision for concomitant PR was performed at the surgeon's discretion and included posterior colporrhaphy, perineorrhaphy, or sacrocolpoperineopexy. Five-year outcomes were dichotomized into presence/absence of pPOP (Ap > 0) and OD symptoms of moderate or greater bother (2) on 1 or more Pelvic Floor Distress Inventory questions about digital assistance, excessive straining, or incomplete evacuation. Composite failure during the 5-year interval was defined by both pPOP and OD symptoms or pPOP reoperation. Completed baseline and 5-year outcomes were available for 90 participants (60%); mean (SD) follow-up was 7.1 (1.0) years. At 5 years, only 2 women (6%) with no PR (AP < 0) developed de novo pPOP with OD symptoms; 1 of these underwent subsequent PR. Without PR repair, nearly all participants (23/24; 96%) demonstrated sustained resolution of pPOP, and none underwent PR within 5 years. Obstructed defecation symptoms improved in all groups after ASC with or without PR, although OD symptoms were still present at 5 years, with rates ranging from 17% to 19%. Regardless of concomitant PR, symptomatic pPOP is common 5 years after ASC. Obstructed defecation symptoms may improve after ASC with or without PR. Additional studies are needed to define criteria for performing PR at the time of planned ASC
