From static spinal alignment to dynamic body balance: Utilizing motion analysis in spinal deformity surgery

Three-dimensional motion analysis is necessary to bridge the gap between static spinal radiographic alignment and dynamic body balance in the setting of pediatric and adult spinal deformities. Lessons learned from gait analysis in patients with adolescent idiopathic scoliosis may be applicable to patients with adult spinal deformity, with the potential to improve our understanding of dynamic compensatory mechanisms, the hip-spine complex, and proximal junctional kyphosis. Dynamic and functional assessments such as gait analysis are expected to be the future of pediatric and adult spinal deformity research, with potential clinical and surgical applications.