Figure 3
From: Joint contractures in the absence of inflammation may indicate mucopolysaccharidosis
Spine in Attenuated MPS I. Left Panel: Cervical spine X-ray of an adolescent with attenuated MPS I showing ossification disturbance in the anterior part of column resulting in oval shaped vertebral bodies with anterior beaking and hypoplastic dens axis. Photo courtesy of Bianca Link. Right Panel: Complete spine X-ray in an adult patient with attenuated MPS I showing nearly normal shaped vertebral bodies and gibbus deformity at the thoracolumbar junction. Note that lateral X-rays of the thoracolumbar spine can also reveal anterior beaking. Photo courtesy of Bianca Link.