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Updated: Jul 8, 2026

A Teleoperated Robotic System-Assisted Percutaneous Transiliac-Transsacral Screw Fixation Technique

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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

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 jigs pelvic bone tumor resection resection accuracy surgical navigation vision‐guided surgery

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Published on: September 2, 2025

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.