%0 Journal Article
%T Floating Laminoplasty for the Treatment of Compressive Myelopathy Accompanied by C1 Posterior Ring Hypoplasia: A Technical Note and Case Series.
%A Seok SY
%A Lee DH
%A Lee HR
%A Cho JH
%A Hwang CJ
%A Lee CS
%A Yoon SM
%J World Neurosurg
%V 174
%N 0
%D 06 2023 12
%M 36787857
%F 2.21
%R 10.1016/j.wneu.2023.01.075
%X Posterior ring hypoplasia of the atlas (C1) is not common and in most cases is found by chance without symptoms. This disorder is sometimes accompanied by a mild C1-C2 instability or the presence of a space-occupying lesion such as ossification of posterior longitudinal ligament, pannus, or retro-odontoid pseudo-tumor, which are indications for surgery if symptomatic cord compression is present. A C1 posterior arch resection has been the procedure of choice but is associated with several fatal complications. We here present a novel posterior arch decompression technique that is relatively safer and easier and that involves mobilization and posterior translation of the posterior arch as a whole, similar to a vertebral body sliding osteotomy.