Use of Ultrasonic Bone Scalpel in Adolescent Idiopathic Scoliosis

Estimated blood loss is being obtained from the report generated by the cell saver.

This outcome measure measures the number of patients with intraoperative and postoperative blood transfusions placed in the Ultrasonic Bone Scalpel Group and the Standard of Care Group.

measured from preoperative radiographs

Cobb angle is a measurement of the degree of side-to-side spinal curvature used to define Scoliosis. A Cobb angle of 10 degrees is the minimum angle to define scoliosis. Angles of 40-50 degrees or more may require corrective surgery. Cobb angle will be measured from postoperative radiographs

Lenke Type 1 is a main thoracic curve pattern, and is the most common pattern observed in cases of adolescent idiopathic scoliosis (AIS). The Lenke Classification System provides surgeons with a simple, accurate, and reproducible way to communicate about scoliosis. It relies on measurements taken from standard x-rays. The surgeon evaluates the x-ray from the front, side, and in bending positions. Each scoliosis curve is then classified in three ways: by the curve type based on the three regions of the spine, a lumbar spine modifier, and a sagittal thoracic modifier. The classification system combines the curve type (1-6) with the lumbar modifier (A, B, C) and the sagittal thoracic modifier (-. N, +) to form the complete classification.