Operative results of canal-expansive laminoplasty for cervical spondylotic myelopathy in elderly patients.

Study Design.The study involved elderly patients (age ≥65), who underwent treatment for cervical spondylotic myelopathy by canal-expansive laminoplasty.Objectives.To determine the factors that influence the operative results of canal-expansive laminoplasty for treatment of cervical spondylotic myelo