Context

Spine diseases

Spine Injuries :    150.000 to 200.000 each years in US

15.000 – 17.000 ⇒ Spinal cord injuries
330.000$ + 40.000$ per year for functional injury
Spine degenerative pathologies :
3-4% of population concerned by scoliosis deformity
50% of spine diseases over 40 years : Cervical arthritis
8.4 per 100,000  Syringomyelia (spinal cord cavity diseases) 

A public health issue