A Study Looking at a New Nerve Surgery to Help Men Regain Erections After Prostate Cancer Surgery

Inclusion Criteria: * Patients with persistent post prostatectomy erectile dysfunction as defined below: 1. Severe ED (IIEF score 5-7) and more than 12 months from prostatectomy OR 2. Moderate ED (IIEF score 8-11) and more than 18 months from prostatectomy * Patients must have had good pre-prostatectomy erectile function with a baseline IIEF score of ≥17 on self-reported assessment of historic function. Exclusion Criteria: * Patients aged \< 18 years at diagnosis * Legally incapable patients * Patients \>5 years from prostatectomy. * Bilateral open inguinal hernia repair * Patients with pre-existing significant neurologic disease * Diabetes with evidence of peripheral nerve involvement and end organ dysfunction * Coronary artery disease with unstable angina * Mood disorder (anxiety/depression) with change in medical therapy within last 3 months * Pre-existing penile base surgery which would prevent grafting technique including suprapubic liposuction, suspensory ligament release * Pre-existing penile prosthesis * Current use of androgen deprivation therapy * Use of medications for chronic nerve pain (gabapentin, amitriptyline, nortriptyline, pregablin) * Previous untreated penile trauma * Patients deemed medically unfit for surgery