Symptoms and signs of lumbosacral radiculopathies

Nerve	Symptoms	Signs
L5	Back pain radiating down the lateral leg to foot	Decreased foot dorsiflexion, toe extension, foot inversion and eversion; mild weakness of leg abduction in severe cases
S1	Pain radiating down the posterior leg to foot; leg pain greater than back pain	Decreased leg extension, foot inversion, plantar flexion, and toe flexion; decreased sensation in the posterior leg and lateral foot; loss of ankle jerk
L2-4	Acute back pain radiating around the anterior leg into the knee and possibly foot	Decreased hip flexion, knee extension, leg abduction; decreased sensation in the anterior thigh down the medial aspect of the shin; diminished knee jerk in severe cases
S2-4	Sacral or buttock pain radiating down the posterior leg or into the perineum	Minimal weakness; bowel and bladder dysfunction

Lumbosacral_radiculopathies.htm

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