Diabetic lumbar radiculopathy: sciatica without disc herniation.

Three patients with diabetic radiculopathy (DR) are presented. The clinical aspects of DR, its management, and differential diagnosis are reviewed. Diabetic radiculopathy commonly presents with severe unilateral pain of sudden onset that is usually located in the lower extremity, frequently in the proximal segments. Occasionally, bilateral asymmetric pain may be observed. The pain is severe and may require narcotic medications. Sphincteric involvement is rare. Weakness of hip or thigh muscles, decreased sensation and hypo- or areflexia are commonly observed. The clinical picture can resemble that of high lumbar disc herniation. Electrodiagnostic and radiological studies may help differentiate between the two conditions.