Table 2.

Skeletal imaging survey in patients with mucopolysaccharidoses

	Baseline	Follow-up
Cervical spine	A-P, L-L radiographs standing upright MRI	Yearlya
Thoracolumbar spine	A-P, L-L radiographs standing upright MRI	Yearlya
Hips/pelvis	A-P radiograph	Yearlya
Lower extremities	A-P radiograph standing upright	Yearlya
Forearms	A-P radiograph
Hands	A-P radiograph
Feet	A-P radiograph

A-P anteroposterior, L-L lateral-lateral, MRI magnetic resonance imaging

^aYearly radiography frequency depends on the type of patient clinical manifestation and might be appropriate only for those patients presenting significant kyphosis and/or suffering from spinal pain; MRI is preferred for those patients with neurological problems as it allows better imaging of the spine and a related spinal cord compression