A 46-year-old man comes to the office due to acute back pain after lifting heavy weights at the gym. The pain is localized in the lower back, radiating to the left posterior thigh, calf, and the lateral side of the foot. Bowel and bladder function is normal. Over-the-counter analgesics did not relieve the pain. Physical examination shows a positive straight leg test on the left. There is a weakness in the left hip extension compared to the right side. In addition, there is a loss of ankle jerk reflex on the left side. Which of the following nerve roots is most likely affected in this patient?

Question

Quizplus · Accepted Answer

Eductional Objective: Compression resulting from a herniated disc may lead to back pain that radiates to the lower limbs, which is often termed sciatica. S1 nerve root compression leads to sensory manifestations along the posterior surface of the thigh, calf, and the lateral aspect of the foot. Additionally, there is loss of thigh extension, knee flexion, and foot plantar flexion. S1 nerve root compression often leads to loos of ankle jerk reflex.

A 46-Year-Old Man Comes to the Office Due to Acute