Publications by authors named "Y Charles"

Introduction: Global coronal alignment is mainly assessed by C7 plumbline and central sacral vertical line (CSVL), pelvic obliquity and shoulder alignment. A detailed analysis is mandatory when treating spinal deformity. It remains unclear to what extent mild scoliosis influences global coronal alignment.

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Introduction: In asymptomatic subjects, variations of sagittal alignment parameters according to age and pelvic incidence (PI) has been reported. The aim of this observational study was to describe thoraco-lumbar sagittal alignment in patients with degenerative scoliosis and to compare them to asymptomatic individuals, seeking for the specific effect of deformity in similar age and PI groups.

Materials And Methods: Full spine radiographs of 235 asymptomatic subjects and 243 scoliosis patients were analyzed: cervico-thoracic inflexion point (CTIP), thoraco-lumbar inflexion point (TLIP), lumbar lordosis (LL) L1-S1, LL (TLIP-S1), LL superior arch (TLIP-lumbar apex), LL inferior arch (lumbar apex-S1), PI, thoracic kyphosis (TK) T5-T12, TK T1-T12, number of vertebrae CTIP-TLIPandTLIP-S1.

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Article Synopsis
  • * Methods: Researchers developed 10 critical questions from frequently asked AIS inquiries and had the chatbots respond, then evaluated the accuracy, clarity, and empathy of the answers using a rating system by experienced spine surgeons, while also gathering opinions on AI in healthcare.
  • * Results: ChatGPT 4.0 performed the best with 39% 'excellent' ratings, while overall, only 26% of responses were rated 'excellent.' Not
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Article Synopsis
  • The study aims to determine how rod characteristics, screw density, and cages affect mechanical complications in spinal surgeries compared to patient-related factors and alignment in adult spinal deformity cases.
  • Data from 302 patients was analyzed using different statistical models to measure outcomes like pseudarthrosis and screw loosening and understand the impact of surgical techniques versus patient demographics.
  • Key findings include that using four rods reduces the risk of pseudarthrosis, postoperative malalignment significantly increases the risk of complications, and high screw density leads to a lower risk of screw loosening, while age has a secondary impact on outcomes.
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