Extraordinary positional cervical spinal cord compression in extension position as a rare cause of postoperative progressive myelopathy after cervical posterior laminoplasty detected using the extension/flexion positional CT myelography: one case after laminectomy following failure of a single-door laminoplasty/one case after double-door laminoplasty without interlaminar spacers.
Yasushi FujiwaraHideki ManabeTakahiro HaradaBunichiro IzumiNobuo AdachiPublished in: European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society (2017)
This paper demonstrates that postoperative positional spinal cord compression during neck extension caused a progressive myelopathy even after laminoplasty. When myelopathy symptoms worsen after laminoplasties, we recommend positional CTM/MRI evaluation, even though there is no apparent cord compression in the neutral MRI.