Age-adjusted alignment goals in adult spinal deformity surgery

Abstract

Adult spinal deformity causes pain, disability, and alterations in the quality of life of patients. Sagittal alignment and spinopelvic parameters have been established to provide surgeons with correction goals based upon normative population values. Recently, much research has been done to optimize patient outcomes regarding these parameters and at the same time reduce complications such as proximal junction kyphosis. Recently, there has been growing interest in tailoring these alignment goals based on patient age, with an overall intention of achieving a less substantial correction in older patients compared to traditional alignment goals used for younger populations. This review paper will provide a framework of understanding how advanced age impacts the sagittal alignment of the spine, the evidence supporting age-adjusted alignment goals, and also shortcomings and areas for future investigation.