Evaluation of Biomechanical Modifications of the Neuromuscular Spine Fixed by Bipolar Construct

"Visualization of the vertebral disc and the para-vertebral muscles.~Intra and inter observer reproducibility analysis carried out for each of the measurements made, by two operators.~Patients with instrumented neuromuscular scoliosis: 5 elastographies : preoperatively, then during the usual follow-up consultations with the surgeon every 6 months for 2 years.~Patients with neuromuscular pathologies without instrumented scoliosis: 4 elastographies during the usual follow-up consultations with the surgeon every 6 months for 2 years.~Healthy control patients without neuromuscular pathology or scoliosis :~1 elastography during an usual consultation."