This study should refine our surgical indications and to establish a decision tree of medical and surgical treatment of this common and troublesome strain functionally which is equino-varus.

Inclusion Criteria:

• Hemiparesis secondary to a lesion of the central nervous system, regardless of the etiology dated within 6 months
• Orthopedic equine-varus deformity of the foot and ankle requiring surgery
• Patient able to move by walking preoperatively at least 2 meters with or without technical assistance or may earn postoperative walking ability

Exclusion Criteria:

• History of foot surgery the side to be operated
• Significant deformation set foot and ankle (requiring treatment with triple arthrodesis)
• Bilateral surgery
• Progressive neurological disease
• Dystonic movements or movement disorders
• Realization of a botulinum toxin injection in the 6 months preceding gesture
• Important cognitive impairment