Roentgenological Study of Relationships between Cervical Alignment and Motion after Cervical Expansive Laminoplasty

Abstract

We investigated the relationships between cervical spondylotic alignment and motion in 30 patients with cervical spondylotic myelopathy or ossification posterior longitudinal ligament who underwent expansive laminoplasty. These 30 patients included 19 males and 11 females, with an average age of 59.7 years at operation. The postoperative results were evaluated by cervical lateral radiographs with a mean follow-up period of 38.3 months. We found that postoperative cervical lorodosis had a strong relationship to postoperative cervical range of motion.