• Wei Yuan, Yue Zhu, Xinchun Liu, Haitao Zhu, Xiaoshu Zhou, Renyi Zhou, Cui Cui, and Jie Li.
• Department of Orthopedics, First Hospital of China Medical University, No. 155 Nanjing Bei Street, Heping District, Shenyang City, Liaoning Province, China.
• Clin Neurol Neurosurg. 2015 Jul 1; 134: 17-23.

ObjectiveLaminoplasty (LP) and laminectomy with fusion (LCF) are acceptable surgical options for cervical myelopathy caused by ossification of the posterior longitudinal ligament (OPLL). This study focused on evaluating cervical range of motion (ROM) on a three-dimensional basis as well as neurological outcomes after LP and LCF.MethodsThis prospective cohort study consisted of 38 patients undergoing LP (n=20) or LCF (n=18) from December 2010 to December 2012. Before surgery and at the 3rd, 6th, 12th month follow-up, patients were assessed with three-dimensional cervical ROM, Japanese Orthopaedic Association (JOA) scores, Visual Analogue Scale (VAS) and complications.ResultsThe patients in both groups had significant ROM loss after surgery in six directions of motion. At the 12th month follow-up, the LP group preserved more ROM than LCF in all directions except bilateral rotations. Major reduction was observed in extension, as with only 59.8% and 54.3% ROM preserved in LP and LCF groups. However, the most preserved ROM was witnessed in rotation, especially in the LP group (90.8%). For JOA and VAS, both groups showed significant improvements postoperatively, and the difference between the two groups was not statistically significant.ConclusionsPatients with OPLL had an obvious reduction in active cervical ROM following LP and LCF. Major reduction was observed in extension, and less impact was detected on rotation. Compared with LCF, LP had better ROM preserved. Both LP and LCF provided patients with significant neurological improvement.Copyright © 2015 Elsevier B.V. All rights reserved.

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