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Improved Accuracy in Pelvic Tumor Resections Using a Real-Time Vision-Guided Surgical System.

Vahid Danesh1, Paul Arauz2, Maede Boroji1

  • 1Department of Mechanical Engineering, Stony Brook University, Stony Brook, New York, USA.

Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society
|May 23, 2025
PubMed
Summary
This summary is machine-generated.

A new vision-guided surgical system with modular jigs significantly enhances pelvic bone tumor resection accuracy. This cost-effective approach reduces deviations, improving surgical outcomes without workflow disruption.

Keywords:
modular jigspelvic bone tumor resectionresection accuracysurgical navigationvision‐guided surgery

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Area of Science:

  • Surgical oncology
  • Medical engineering
  • Orthopedic surgery

Background:

  • Pelvic bone tumor resections are complex due to anatomy and visualization limits.
  • Current navigation systems have drawbacks like cost, radiation, and workflow issues.

Purpose of the Study:

  • To evaluate a real-time vision-guided surgical system with modular jigs for improved pelvic bone tumor resection accuracy.
  • To compare this system against the traditional freehand method.

Main Methods:

  • Developed and validated a vision-guided surgical system with modular cutting jigs and real-time optical tracking.
  • Tested on five male pelvis sawbones, comparing the new system to the freehand method for 20 resection planes.
  • Assessed accuracy via distance and angular deviations from planned resection planes.

Main Results:

  • The vision-guided system significantly reduced mean distance deviation from 2.07±1.71 mm to 1.01±0.78 mm (p=0.0193).
  • All resections using the vision-guided system had errors < 3 mm.
  • Significant improvements in angular deviations were observed, with roll angle reduced from 15.36±17.57° to 4.21±3.46° (p=0.0275) and pitch angle from 6.17±4.58° to 1.84±1.48° (p<0.001).

Conclusions:

  • The vision-guided system with modular jigs significantly enhances pelvic bone tumor resection accuracy.
  • This cost-effective solution offers real-time guidance, improving workflow efficiency and potentially surgical outcomes.
  • The system provides a viable alternative to current navigation methods without external monitor reliance.