Evaluation of Sitting Balance in Adolescent Idiopathic Scoliosis Patients with Pelvic Rotation Using Balance Board System with Accelerometer

Correlation analysis between scoliosis and pelvic axial rotation of adolescent idiopathic scoliosis patients was conducted using balance board system with accelerometer. 9 subjects were classified into scoliosis group and scoliosis with PAR group, and then their cobb angles, directions of pelvic axial rotation, and inclination angles were also measured. Inclination angles were assessed by using an accelerometer located on the balance board system. All subjects performed anterior, posterior, left, and right pelvic tilting on the system for 5 seconds during sitting. Inclination angles of scoliosis patients were changed significantly in the frontal and sagittal planes by the direction of the pelvic axial rotation. From the results, it was confirmed that postural balance of idiopathic scoliosis in adolescents may be influenced by cobb angle and pelvic axial rotation. In addition, balance board system with accelerometer can be utilized to provide useful information about the patients with idiopathic scoliosis and pelvic deformities in rehabilitation medicine.