Adult Spinal Deformity
Adult spinal deformity is defined by scoliosis or abnormal coronal or sagittal balance. Sagittal imbalance can be due to an increase in thoracic kyphosis and/or loss of lumbar lordosis. Abnormal sagittal balance causes increased energy expenditure required for walking and standing upright. In patients with adult spinal deformity, correction of sagittal balance is the primary determinant of improved pain and function after surgery.