What are the Symptoms of S1 radiculopathy?
S1 root compression causes pain to radiate to the posterior buttock, posterior calf, and lateral foot (classic sciatica).
Sensory loss occurs along the lateral aspect of the foot, especially in the third, fourth, and fifth toes.
Weakness may occur in the gluteus maximus (hip flexor) and plantar flexors.
The ankle jerk is usually diminished