Background/Aims: The etiology of urge urinary incontinence is unknown. Pharmacological treatments are disappointing, since they are only slightly more effective than a placebo. In this study, we analyzed whether the surgical replacement of the uterosacral ligaments by an alloplastic tape can cure patients with mixed and urge urinary incontinence. Methods: This study was a nonrandomized clinical trial. The study was performed in the Department of Gynecology of a general hospital and a university clinic. 135 women with urge or mixed urinary incontinence were operated on. The utero-sacral ligaments as well as the pubo-urethral ligaments – if necessary – were replaced by alloplastic tapes. Clinical outcome was evaluated immediately after surgery, 3 months later and 1 year later. Outcome was classified as cure, improvement or failure and recurrences. Results: 102 patients (77%) were cured and a further 24 patients (18%) showed improvement after surgery. 19 patients developed a recurrence between 5 and 33 months after surgery. Conclusion: We therefore conclude that most patients with urge and mixed urinary incontinence can be cured by surgery.