Patients with multiple ossification of the posterior longitudinal ligament of the lumber spine.

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The posterior longitudinal ligament, together with the yellow ligament, ossifies and thickens due to ageing and physical constitution, and readily compresses the spinal cord and nerve root, producing neurological symptoms. Since the 1960s, a number of patients with posterior longitudinal ligament ossification have been reported, and the treatment has been nearly established.Most of these patients had ossification in the cervical spine, but some had lesions in the thoracic or lumber spine. We report 2 patients with posterior longitudinal ligament ossification of the lumber spine that is relatively infrequently observed and discuss the clinical problems.Patient 1: A 57-year-old female. Enlargement of the spinal canal performed for ossification of the posterior longitudinal ligament of the cervical spine did not improve the symptoms in the right lower limb. X-ray examination revealed multiple ossification of the posterior longitudinal ligament of the lumber spine. Patient 2: A 52-year-old female. On the next day of a mortorbike accident, lumbago and symptoms in the lower limbs appeared. X-ray examination revealed ossification of the posterior longitudinal ligament of the thoracic and lumber spine.Surgery on the lumbar spine was performed in both patients.
西日本整形・災害外科学会の論文