Composite criterion of success 24Months [clinicaltrials_resource:3b5e65c06fbf2f3c0eeca371a43e00dc]

the success is defined by a composite criterion of 4 points. The surgery will be a success only if there is: A 15-point improvement in the NDI score from the preoperative baseline score Maintenance or improvement of the pre-op baseline neurological status Absence of secondary surgical intervention Absence of serious adverse event

Composite criterion of success 24Months [clinicaltrials_resource:3b5e65c06fbf2f3c0eeca371a43e00dc]

the success is defined by a composite criterion of 4 points. The surgery will be a success only if there is: A 15-point improvement in the NDI score from the preoperative baseline score Maintenance or improvement of the pre-op baseline neurological status Absence of secondary surgical intervention Absence of serious adverse event