Application: Intended for use in the lower cervical and upper thoracic spine (C3-T3) after a laminotomy has been performed. Ossification of the posterior longitudinal ligament (OPLL) over multiple levels with maintained cervical lordosis. Congenital canal stenosis with maintained cervical lordosis. Multilevel cervical spondylosis with maintained cervical lordosis. Posterior compression from ligamentous hypertrophy with maintained cervical lordosis.