Review Question - QID 220108

A 42-year-old female recreational long-distance runner presents with left buttock pain that has been present over the past 6 months. She endorses a dull ache when sitting for a prolonged period. Her pain worsens with knee extension and hip flexion. She is found to have a chronic proximal hamstring avulsion and undergoes operative repair. During the procedure, the surgeon exposes the ischial tuberosity and places large Hohmann retractors around the exposed bone. One retractor is placed aggressively superior and medial to the ischial tuberosity. Which nerve is at risk with this retractor placement?