Flatback Deformity and Stiff Pelvic Mobility Alter the Optimal Cup Anteversion After Total Hip Arthroplasty: Insights from 3D-to-2D Model-Image Registration Analysis.

Key Points

• The research aims to understand how flatback deformity and pelvic mobility influence optimal cup anteversion during hip replacement surgery.
• Used 3D-to-2D model-image registration analysis.
• Assessed dynamic spinopelvic alignment.
• Examined high-risk total hip arthroplasty patients.
• Identified specific anteversion angles influenced by pelvic conditions.
• Demonstrated reduced dislocation risk with personalized positioning.
• Showed improved implant stability in aligned patients.