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Updated: Jun 13, 2026

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A Teleoperated Robotic System-Assisted Percutaneous Transiliac-Transsacral Screw Fixation Technique
Published on: January 6, 2023
Robot- and computer-assisted craniotomy (CRANIO): from active systems to synergistic man-machine interaction
V Cunha-Cruz1, A Follmann, A Popovic
1Helmholtz-Institute for Biomedical Engineering, RWTH Aachen University, Aachen, Germany.
Summary
The CRANIO system enhances robotic surgery for bone tumor removal. A new synergistic approach integrates surgeons, offering greater intra-operative control and flexibility during craniotomy procedures.
Area of Science:
- Neurosurgery
- Robotics
- Medical Engineering
Background:
- Robotic assistance in craniotomy aims to improve precision and efficiency for calvarial tumor removal.
- Preoperative planning enables custom implant design and manufacturing.
- Existing automated systems lack intra-operative surgeon feedback.
Purpose of the Study:
- To present the CRANIO system and its novel teleoperated synergistic architecture.
- To integrate surgeon cognitive capabilities into automated bone milling procedures.
- To evaluate the accuracy of the CRANIO system in active and synergistic modes.
Main Methods:
- Development of an active robotic system for automated bone milling based on preoperative resection planning.
- Design of a teleoperated synergistic architecture enabling surgeon interaction via a master-slave system.
- Experimental evaluation of system accuracy in active (automatic) and synergistic (surgeon-controlled) modes.
Main Results:
- The CRANIO system demonstrated general feasibility for bone milling in craniotomy procedures.
- Laboratory studies confirmed the system's accuracy in both active and synergistic modes.
- Synergistic mode, while slightly less efficient than purely active mode, offers enhanced surgeon feedback and flexibility.
Conclusions:
- The CRANIO system's synergistic approach successfully integrates surgeons into automated bone milling.
- This teleoperated architecture enhances intra-operative control and adaptability in neurosurgical procedures.
- The system provides a viable solution for improving precision and surgeon engagement in craniotomy.

