Minimally Invasive Advances in Deformity.

Adult spinal deformity is a major contributor to pain and disability. It is a degenerative disease with a rigid spine. Spinopelvic parameters have been identified that outline goals of operative intervention, as they have shown to significantly improve patient outcomes. Previously, this was accomplished with large, open fusions. Unfortunately, the adult spinal deformity population is often elderly with significant comorbidities. These extensive fusions have a high rate of morbidity and mortality. Technological advances have allowed minimally invasive approaches to be developed. These techniques have decreased operative morbidity without increasing health care spending.