Martha is a 39 year old female who is seen in Gynaecology clinic. She explained that she has had episodes of incontinence since the traumatic birth of her son two years ago. Episodes are usually triggered by coughing or sneezing but recently, also jogging. Martha feels very self-conscious especially when at work. She is otherwise fit and well. Abdominal and pelvic examinations, as well as, urine dipstick is unremarkable.
Given the likely diagnosis what is the most definitive treatment?