Fig. 1.
a MRI showing severe post-traumatic myelopathy after a minor backwards fall in a previously simply decompressed MPS IV child. b C2 pars screws, c postoperative MRI, and d plain x-rays at 4 years follow-up
a MRI showing severe post-traumatic myelopathy after a minor backwards fall in a previously simply decompressed MPS IV child. b C2 pars screws, c postoperative MRI, and d plain x-rays at 4 years follow-up