Clinical and Radiographic Outcomes of Modified Unilateral Open-door Laminoplasty with Posterior Muscle-Ligament Complex Preservation for Cervical Spondylotic Myelopathy

Mini The surgical results of modified and traditional open-door laminoplasties were retrospectively compared. There were no differences in neurological outcomes and postoperative complications. However, compared with traditional laminoplasty, modified laminoplasty was associated with better maintenance of cervical curvature and ROM, as well as a lower incidence of postoperative axial symptoms. Study Design. A retrospective comparative study. Objective. The aim of this study was to evaluate the efficacy of modified unilateral open-door laminoplasty with posterior muscle-ligament complex preservation in treating cervical spondylotic myelopathy (CSM). Summary of Background Data. The prevalence of axial symptoms after open-door laminoplasty ranges from 5% to 86%. Current modified laminoplasty techniques cannot satisfactorily reduce postoperative axial symptoms. Methods. From June 2014 to July 2016, 36 patients with CSM underwent modified laminoplasty with posterior muscle-ligament complex preservation (modified group) and 27 patients underwent traditional laminoplasty (control group). The demographics, operation duration, blood loss volume, cervical curvature, cervical curvature index (CCI), range of motion (ROM), cervical posterior muscle volume on magnetic resonance imaging (MRI), axial symptoms, visual analog scale (VAS) score, Japanese Orthopedic Association (JOA) score, neck disability index (NDI), and complications were recorded and analyzed before operation, ...
Source: Spine - Category: Orthopaedics Tags: CERVICAL SPINE Source Type: research