Spinal osteotomy is an advanced surgical procedure used to correct significant spinal deformities, particularly when the spine has become severely curved, rigid, or misaligned. It involves carefully removing or reshaping part of a vertebra to restore spinal alignment and improve posture and balance.Spinal osteotomy may be considered for patients with complex spinal deformities such as severe kyphosis, fixed scoliosis, or deformities that develop after previous spine surgery. The procedure is generally reserved for cases where less-invasive treatments cannot adequately correct the deformity.