Five cases of disc herniation at L1-2.

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Five cases of our experience in herniation of the intervertebral disc at L1-2 is summarized in the present paper. One of the five patients with paresis is a woman and the others are men. The majority of patients complained first of lower back or lower extremity pain or both. There was anterior thigh pain in two patients, perineal pain in other two patients, and posterior thigh pain in other.Pain was aggravated during standing or walking. Other symptoms were paresthesia of both lower extremities in one patient, numbness of lower extremity in other one, and paresthesia of both soles in three. Depression of knee reflex, quadriceps muscular atrophy and positive femoral nerve stretch test are common with disc herniation at L1-2. Sensory changes are common over subgroin to sole and perineum. There were occult bladder dysfunction in two patients.Standing myelography and CTM are the most helpful test in localizing disc disease at the upper lumbar levels.Removal of the disc and intervertebral body fusion resulted in excellent recovery in one, good in three, and no change in one. The patients of long pretherapeutic period showed poor prognosis.
西日本整形・災害外科学会の論文