Spatial spinal fixation: A transformative approach using a unique robot-assisted steerable drilling system and flexible pedicle screw

Susheela Sharma*, Yash Kulkarni*, Sarah Go, Jeff Bonyun, Jordan P. Amadio, Maryam Tilton, Mohsen Khadem, Farshid Alambeigi

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract / Description of output

Spinal fixation procedures are currently limited by the rigidity of the existing instruments and pedicle screws leading to fixation failures and rigid pedicle screw pull out. Leveraging our recently developed Concentric Tube Steerable Drilling Robot (CT-SDR) in integration with a robotic manipulator, to address the aforementioned issue, here we introduce the transformative concept of Spatial Spinal Fixation (SSF) using a unique Flexible Pedicle Screw (FPS). The proposed SSF procedure enables planar and out-of-plane placement of the FPS throughout the full volume of the vertebral body. In other words, not only does our fixation system provide the option of drilling in-plane and out-of-plane trajectories, it also enables implanting the FPS inside linear (represented by an I-shape) and/or non-linear (represented by J-shape) trajectories. To thoroughly evaluate the functionality of our proposed robotic system and the SSF procedure, we have performed various experiments by drilling different I-J and J-J drilling trajectory pairs into our custom-designed L3 vertebral phantoms and analyzed the accuracy of the procedure using various metrics.
Original languageUndefined/Unknown
Title of host publication2024 IEEE/RSJ International Conference on Intelligent Robots and Systems
Publication statusAccepted/In press - 30 Jun 2024
Event2024 IEEE/RSJ International Conference on Intelligent Robots and Systems - Abu Dhabi, United Arab Emirates
Duration: 14 Oct 202418 Oct 2024


Conference2024 IEEE/RSJ International Conference on Intelligent Robots and Systems
Abbreviated titleIROS 2024
Country/TerritoryUnited Arab Emirates
CityAbu Dhabi
Internet address

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