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June 12, 2026Operative Neurosurgery

Optimizing Surgical Trajectories to the Petroclival Region: Anatomic Predictors and Access Enhancement With Modified Contralateral Transmaxillary Approaches

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Authors

MBMegan M. J. BaumanYSYuki ShinyaJGJeffrey P. Graves

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Overview

Randomized trial evaluates modified contralateral transmaxillary approaches to enhance access to the petroclival region, suggesting improved surgical planning.

Key Points

  • This study aims to assess the efficacy of modified contralateral transmaxillary approaches in enhancing surgical access to the petroclival region.
  • Dissection of 10 sides from 5 cadaveric specimens to evaluate CTM, CTMP, and CTMP-LBR approaches.
  • Radiographic analysis of 30 sides from computed tomography angiography scans for measurement comparison.
  • Evaluation of anatomical barriers affecting access during surgical procedures.
  • CTMP and CTMP-LBR approaches significantly increased access for retrocarotid petrous bone drilling (P < .001).
  • Both methods yielded wider surgical angles compared to CTM (P < .001).
  • Preoperative evaluation of the ICA angle improved the effectiveness of the CTMP approach (P = .005).

Cite This Study

Bauman et al. (2026) studied this question.

synapsesocial.com/papers/6a2ba2c18101cf8926f01b3chttps://doi.org/10.1227/ons.0000000000002087
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