Pelvic incidence correlates to sagittal spinal morphology in Lenke 5 adolescent idiopathic scoliosis and influences the proximal junctional kyphosis rate after correction surgery
European Spine Journal Feb 10, 2021
Wang G, et al. - Researchers aimed at determining the correlation between pelvic incidence and sagittal spinal morphology in Lenke 5 adolescent idiopathic scoliosis (AIS). In addition, they examined its impact on the proximal junctional kyphosis rate after surgery. A total of 52 cases of Lenke 5 AIS were enrolled. Measurement of sagittal spinal morphological parameters, pelvic incidence (PI) and the proximal junctional angle was done on full-length spinal standing lateral x-ray films preoperatively, postoperatively and at the final follow-up. Findings revealed PI to be correlated with sagittal spinal morphological parameters in Lenke 5 AIS, but not with lumbar lordosis. In addition, PI linked with the proximal junctional kyphosis (PJK) rate after surgery. A reduction in the PJK rate may occur following restoration of an ideal postoperative PI-LL relationship.
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