70-year-old patient. PI = 41°, so ideal Roussouly-type is 1. Ideal

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Dependence of lumbar loads on spinopelvic sagittal alignment: An evaluation based on musculoskeletal modeling

The Journal of Turkish Spinal Surgery

ns :: Neurospine

Sagittal balance of the spine - ScienceDirect

Frontiers Roussouly type 2 could evolve into type 1 shape as sagittal spinal alignment deterioration progresses with age

Sagittal balance of the spine - ScienceDirect

JaypeeDigital

Restoring the ideal Roussouly sagittal profile in adult scoliosis surgery decreases the risk of mechanical complications

(PDF) Adolescent Scoliosis 1A001: Radiographic Results of Selecting the Touched Vertebra as the Lowest Instrumented Vertebra in Lenke Type 1 (Main Thoracic) & Type 2 (Double Thoracic) Curves at a Minimum 5-year Follow-up

69-year-old patient. PI = 45°, ideal Roussouly-type is 2. Ideal lumbar