From the Spinopelvic Parameters to Global Alignment and Proportion Scores in Adult Spinal Deformity

In the last 20 years, sagittal alignment and balance of the spine have become one of the most important issues in the field of spine surgery. Recent studies emphasize that sagittal balance and alignment are more important for health-related quality of life. The under-standing of normal and abnormal sagittal alignment of the spine is necessary for the diag-nosis and appropriate treatment of adult spinal deformity (ASD), and we will discuss the currently used classification of ASD, the parameters of sagittal alignment that are essential for the diagnosis of spinal deformity, compensatory actions to maintain sagittal balance, and the relationship between sagittal alignment and clinical symptoms. Furthermore, we will also discuss the recently introduced Global Alignment and Proportion scores. The Ko-rean Spinal Deformity Society is publishing a series of review articles on spinal deformities to help spine surgeons better understand spinal deformities.

Automated summary

Over the past 20 years, sagittal alignment and balance of the spine have gained significant importance in spine surgery. Recent studies highlight the crucial role of sagittal balance and alignment in health-related quality of life. Understanding normal and abnormal sagittal alignment is essential for diagnosing and treating adult spinal deformity (ASD), and this article discusses the classification of ASD, essential parameters for diagnosing spinal deformity, compensatory actions for maintaining sagittal balance, and the relationship between sagittal alignment and clinical symptoms. Additionally, it explores the newly introduced Global Alignment and Proportion scores. The Korean Spinal Deformity Society is publishing a series of review articles on spinal deformities to provide better understanding for spine surgeons.