Value of Urodynamics Prior to Stress Incontinence Surgery 2

Inclusion Criteria: * Symptoms of stress urinary incontinence and/or mixed urinary incontinence, predominantly stress incontinence * Signs of stress urinary incontinence on physical examination or voiding-diary * Patient is a candidate for surgical treatment (as based on history and physical examination) * Patient has attended at least 3 months of physiotherapy * Patient accepts randomisation * Patient is capable to fill out bladder diary's, pad tests and questionnaires * Patient understands the Dutch written and spoken language * ASA 1 or 2 Exclusion Criteria: * Previous incontinence surgery * Mixed urinary incontinence, urge component is predominant * Prolapse \>= 1cm beyond the hymen on Valsalva in supine position * Postvoid urinary residual \> 150ml * Present urinary tract infection * The need for additional pelvic surgery (prolapse and/or hysterectomy) * Patient is or wants to become pregnant * Prior pelvic radiotherapy