Procedure/Surgery: Intrathecal Autologous Bone Marrow TNC. Other Names: Autologous Stem Cell Transplantation Patients will be stimulated with Granulocyte Colony Stimulating Factor (G-CSF) (10mcgr/kg of body weight) for 3 consecutive days. Bone marrow will be harvested under sedation and, after being processed in the laboratory, the autologous TNC concentrate of 10 mL will be infused intrathecally.

Patients will be evaluated with the "Gross Motor Functional Classification System" initially, at one, three and six months, and then cross to the intervention arm.

Patients will be stimulated with Granulocyte Colony Stimulating Factor (G-CSF) 3 consecutive days. Bone marrow will be harvested under sedation and, after being processed in the laboratory, the buffy coat (TNC) of 10 mL will be infused intrathecally.

Intrathecal Autologous Bone Marrow TNC

Patients, in an outpatient basis, will be stimulated with Granulocyte Colony Stimulating Factor (G-CSF) for 3 consecutive days. Their bone marrow will be harvested under sedation and, after being processed in the laboratory, the buffy coat of 10 mL will be infused intrathecally.

Patient will be monitored during acute phase to register any adverse effect (malaise, headache, fever, and nausea or vomit, etc).Gross Motor Function Classification System (GMFCS) scale is going to be monitored at baseline, one, three and six months to measured differences between the scales.

GMFCS is based on patient's self-initiated movement with particular emphasis on sitting, walking, and wheeled mobility. Distinctions between levels are based on functional abilities, the need for assistive technology, including hand-held mobility devices (walkers, crutches, or canes) or wheeled mobility, and to a much lesser extent, quality of movement.