OBJECTIVE: Cervical laminoplasty has been widely accepted as one of the major treatments for cervical @entity602 and various modifications and supplementary procedures have been devised to achieve both proper decompression and stability of the cervical spine. We present the retrospectively analyzed results of a modified unilateral open-door laminoplasty using @entity692 (HA) spacers and malleable @entity702 miniplates. METHODS: From June 2008 to May 2012, among @entity1 diagnosed with cervical spondylotic @entity602 and @entity3057 , the @entity1 who received laminoplasty were reviewed. Clinical outcome was assessed using Frankel grade and Japanese Orthopaedic Association score. The radiologic parameters were obtained from plain films, 3-dimensional computed tomography and magnetic resonance images. RESULTS: A total of 125 cervical laminae were operated in 38 @entity1 . 11 @entity1 received 4-level laminoplasty and 27 @entity1 received 3-level laminoplasty. Postoperatively, the mean Frankel grade and JOA score were significantly improved from 3.97 to 4.55 and from 12.76 to 14.63, respectively (p<0.001). Radiologically, cervical curvature was worsened from 19.09 to 15.60 (p=0.025). The percentage of range of motion preservation was 73.32  22.39%. The axial dimension of the operated spinal canal was increased from 1.75 to 2.70 cm(2) (p<0.001). CONCLUSION: In the presenting study, unilateral open-door laminoplasty using HA spacers and miniplates appears to be a safe, rapid and easy procedure to obtain an immediate and rigid stabilization of the posterior elements of the cervical spine. This modified laminoplasty method showed effective expansion of the spinal canal and favorable clinical outcomes.

Modified Open-door Laminoplasty Using XXXX Spacers and Miniplates.

@entity1 :: ('9606', 'Species') :: ['patients'] @entity602 :: ('MESH:D013118', 'Disease') :: ['myelopathy'] @entity692 :: ('MESH:D017886', 'Chemical') :: ['hydroxyapatite'] @entity702 :: ('MESH:D014025', 'Chemical') :: ['titanium'] @entity3057 :: ('MESH:D017887', 'Disease') :: ['ossification of posterior longitudinal ligament']
@entity692 :: (MESH:D017886,Chemical) :: ['Hydroxyapatite']
