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April 3, 2026Asian Spine Journal0 citationsOpen Access

Effect of posterior ligamentous complex integrity on O-arm navigation accuracy in thoracolumbar trauma: a prospective comparative study

SASiddharth N. AiyerSNSameer NagpalAKAjay Kothari

Key Points

  • The aim is to evaluate how posterior ligamentous complex (PLC) injury affects O-arm navigation accuracy during pedicle screw placement in thoracolumbar trauma.
  • Conducted a prospective comparative study on thoracolumbar trauma cases.
  • Assessed the integrity of the posterior ligamentous complex.
  • Evaluated navigation errors and accuracy of screw placements with O-arm guidance.
  • PLC injury led to significant increases in navigation errors.
  • Critical breaches in screw placement were noted despite following established protocols.
  • Segmental instability was identified as a contributing factor to the compromised navigation accuracy.

Abstract

PLC injury significantly compromises the accuracy of O-arm-guided pedicle screw placement in thoracolumbar fractures. Increased navigation errors and critical breaches were observed despite protocol adherence, likely because of segmental instability. Surgeons should consider repeat scans for accuracy.

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Cite This Study

Aiyer et al. (2026) studied this question.

synapsesocial.com/papers/69cf59635a333a8214609f6chttps://doi.org/10.31616/asj.2025.0335
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