Kinetic analysis of the cervical spinal cord in patients after spinous process-splitting laminoplasty using a kinematic magnetic resonance imaging technique.

Study Design: An in vivo flexion-extension magnetic resonance imaging study.

Objective: To evaluate the kinetic changes of the cervical spinal cord after laminoplasty in patients with cervical myelopathy.

Summary Of Background Data: Laminoplasty for cervical myelopathy increases the space occupied by the spinal cord, leading to a decompressive effect on the cord.