CRYOSTROKE study is designed :
* to compare the efficacy and safety of percutaneous CryoNeurotomie (CN) versus surgical neurotomy (SN) on spasticity, 90 days after intervention, in post-stroke patients presenting with spastic equinovarus foot and, * to ensure that potential clinical effect/safety remain stable within time, with a 12-month follow-up.
Age ≥18 years old.
Patient with spastic equinovarus foot as a result of stroke in chronic phase (>6 months).
Patient with positive perineural motor block test with or without complete correction of spastic equinus and non-persistence of 40° equinus.
Patient eligible for surgical neurotomy for varus equinus foot.
Patient with previous nerve procedures such as chemical neurolysis with alcohol, cryoneurotomy, or any surgery at the same anatomical site.
Patient with any neurological pathology different from the one responsible for the spasticity.
Patient with botulinum toxin in lower limb injection during the last 90 days before intervention.
Patient with anti-spastic treatment (baclofene) up 3 days before block test.