The patient will undergo a study visit at screening / baseline and at 14 days, 6 weeks, 6, 12 and 24 months after surgery. Safety data will be collected during surgery and throughout the 24 months follow up. Procedural details will be collected during surgery and also duration of hospital stay will be collected. At screening / baseline and all follow up visits a physical examination will be performed, the use of pain medication will be documented and the subject will be asked to complete a pain VAS scale (back - leg - buttock / groin pain) and questionnaires (SF36 v2 and Zurich Claudication Questionnaire).