Effect of Lamina Open Angles in Expansion Open-door Laminoplasty on the Clinical Results in Treating Cervical Spondylotic Myelopathy

Abstract

In different angles of lamina open-door, the improvement rate of neurological function after surgery had no statistically significant difference between 2 groups. When the open-door angle is maintained between 15 and 30 degrees, it can reduce the incidence of C5 palsy in the hinge side and AS, but we should prevent reclosure of the lamina open-door.