Percutaneous Tibial Nerve Stimulation - an Alternative Treatment Option for Chronic Therapy Resistant Anal Fissure

At a tertiary referral centre, 10 patients (4 male and 6 female; mean age 49.8 years) were given neuromodulation via the posterior tibial nerve to the sacral nerve for 30 min on 10 consecutive days. All patients had failed conventional medical treatment. The visual analogue scale (VAS), St. Marks score, Wexner's constipation score, Brief Pain Inventory (BPI - SF), bleeding and mucosal healing were evaluated before treatment, at termination, after 3 months and then yearly during three years.