Study on Preliminary Safety and Efficacy of Epidural Electrical Stimulation to Manage Lower Urinary Tract Dysfunction After Spinal Cord Injury

Inclusion Criteria: * Age 18 or older; * Must provide and sign the Informed Consent Form prior to any study-related procedures; * Spinal cord injury lesion level above T11 (inclusive); * SCI graded as AIS- B, C or D; * SCI ≥ 6 months; * Confirmed lower urinary tract dysfunction during urodynamic assessment (NDO, DSD); * Intolerant, refractory or inefficient to conservative treatment options such as medications and behavioural management; * Using intermittent self-catheterization; * Stable medical, physical and psychological condition as considered by the investigators; * Able to understand and interact with the study team in French or English; * Agrees to comply in good faith with all conditions of the study and to attend all scheduled appointments; Exclusion Criteria: * Botulinum toxin vesical injections in the previous 6 months; * Presence of non-pharmacological treatments for lower urinary tract dysfunction (e.g. sacral nerve stimulation); * Does have or needs a suprapubic catheter or bladder indwelling catheter; * Presence of upper urinary tract dilatation or bladder or renal stones; * Presence of urethral stricture or significant benign prostate hyperplasia; * Presence of significant pressure ulcers; * Previous lower urinary tract surgery; * Presence of Autonomic Dysreflexia during urodynamic test; * Recurrent and symptomatic urinary tract infection (more than 3 per year); * Presence of intrathecal baclofen pump; * Diseases and conditions that would increase the morbidity and mortality of spinal surgery; * Other clinically significant concomitant disease states (e.g., syringomyelia, bladder cancer, renal failure, hepatic dysfunction, cardiovascular disease, etc.); * The inability to withhold antiplatelet/anticoagulation agents perioperatively; * Presence of pacemakers for cardiac conditions; * Other conditions that would make the subject unable to participate in testing in the judgement of the investigators; * Women who are pregnant (pregnancy test obligatory for woman of childbearing potential) or breast feeding; * Lack of acceptable or highly effective method of contraception for women of childbearing capacity; * Intention to become pregnant during the course of the study; * Inability to follow the procedures of the study, e.g. due to language problems, mental illness, psychological disorders, or dementia of the participant; * Participation in another study with investigational drug or device within the 30 days preceding and during the present study; * Have any indication that would require Magnetic Resonance Imaging (MRI) * Is the investigator himself, his/her family members, employees or other dependent persons.