ossification of the posterior longitudinal ligament of spine

A connective tissue disease characterized by ectopic ossification of the posterior longitudinal spinal ligament resulting in spinal cord compression, myelopathy and hyperreflexia.

Signs and symptoms

• Diabetes mellitus
• Abnormality of the vertebral column
• Spinal cord compression
• Increased bone mineral density
• Myelopathy
• Ectopic ossification
• Hyperreflexia

Also known as: OPLL