Background Lumbar lordosis distribution has become a pivotal factor in re-establishing the
foundational alignment of the lumbar spine. This can directly influence overall sagittal
alignment, leading to improved long-term outcomes for patients. Despite the wide availability
of hyperlordotic stock cages intended to achieve optimal postoperative alignment, there is a
lack of correlation between the lordotic shape of a cage and the resultant intervertebral
alignment. Recently, personalized spine surgery has witnessed significant advancements …