Abbreviation	Definition
AMDG	Agency Medical Directors’ Group
CCI	Canadian Classification of Health Interventions
CHUM	Centre hospitalier de l’Université de Montréal
CRPS	Complex regional pain syndrome
CSF	Cerebrospinal fluid
FBSS	Failed back surgery syndrome
IPG	Implantable pulse generator
IQR	Interquartile range
MME	Morphine milligram equivalent
MRI	Magnetic resonance imaging
SCS	Spinal cord stimulation
SD	Standard deviation
STROBE	Strengthening the Reporting of Observational Studies in Epidemiology
VAS	Visual analog scale