1. ASD with high pelvic retroversion develop changes in their acetabular orientation during walking
- Author
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Ayman Assi, Guillaume Rebeyrat, Rami El Rachkidi, Karl Semaan, Eddy Saad, Elio Mekhael, Nabil Nassim, Abir Massaad, Virginie Lafage, Ismat Ghanem, Hélène Pillet, and Wafa Skalli
- Subjects
Adult spinal deformity ,Gait analysis ,Hip ,Spine ,Biomechanics ,Neurology. Diseases of the nervous system ,RC346-429 - Abstract
Introduction: It was hypothesized that pelvic retroversion in Adult Spinal Deformity (ASD) can be related to an increased hip loading explaining the occurrence of hip-spine syndrome. Research question: How pelvic retroversion can modify acetabular orientation in ASD during walking? Methods: 89 primary ASD and 37 controls underwent 3D gait analysis and full-body biplanar X-rays. Classic spinopelvic parameters were calculated from 3D skeletal reconstructions in addition to acetabular anteversion, abduction, tilt, and coverage. Then, 3D bones were registered on each gait frame to compute the dynamic value of the radiographic parameters during walking. ASD patients having a high PT were grouped as ASD-highPT, otherwise as ASD-normPT. Control group was divided in: C-aged and C-young, age matched to ASD-hightPT and ASD-normPT respectively. Results: 25/89 patients were classified as ASD-highPT having a radiographic PT of 31° (vs 12° in other groups, p
- Published
- 2023
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