Non Fusion Surgery in Adolescent Idiopathic Scoliosis Patients Using the Nemost-AIS System
The primary objective of the study is to monitor the effectiveness of a minimal invasive non-fusion double rod bipolar posterior spinal implant (Nemost growing domino) to correct the scoliotic curve in growing patients suffering from progressive adolescent idiopathic scoliosis (AIS) who have failed conservative treatment.
• Adolescent idiopathic scoliosis ;
• Primary Cobb angle greater than 30°;
• Failed non-operative treatment defined as progression of the curve greater than 5° per year at any time;
• Skeletally immature (Risser grade\* ≤2 and Skeletal age of hand and wrist X-rays ≤14y);
• In girl, either pre-menarchal or post-menarchal by no more than 1 year;
• Age over 10 years;
• Non rigid curve;
• All Lenke type;
• No previous spine surgery.