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A Novel Tracker-Less, Universal, Image-Based, Computer-Assisted Navigation in Orthopaedic Trauma- A pilot Study
Nishant D Goyal1,2, Vijay M Panchnadikar3
1Department of Orthopaedics, Max Institute of Musculoskeletal Sciences, New Delhi, India.
Indian Journal of Orthopaedics
|July 26, 2021
Summary
A new non-invasive, image-based navigation system significantly improves accuracy and reduces operative time and radiation exposure in orthopedic trauma surgeries. This trackerless system offers a more effective alternative to current navigation methods.
Area of Science:
- Orthopaedic Surgery
- Medical Imaging
- Surgical Navigation Technology
Background:
- Computer-assisted navigation systems enhance surgical precision by providing real-time feedback, reducing intraoperative errors.
- Existing navigation systems are often tracker-based, invasive, and lack universal application.
- A novel trackerless, image-based, non-invasive, and universal navigation system was developed to address these limitations.
Purpose of the Study:
- To evaluate the efficacy of a novel trackerless, image-based navigation system in predicting the future positions of surgical instruments.
- To compare the performance of the new navigation system against conventional methods in orthopaedic trauma surgeries.
Main Methods:
- The navigation software was initially validated using bone models.
- A non-randomized comparative study involved 81 adult patients with stable intertrochanteric fractures undergoing dynamic hip screw and barrel plate fixation.
- Patients were divided into two groups: one using a C-arm, the other using the navigation software in conjunction with a C-arm.
Main Results:
- The navigation software demonstrated significant benefits for guide wire positioning in both bone models and dynamic hip screw (DHS) barrel plate surgeries.
- Key parameters such as insertion time, C-arm exposure, and guide wire insertion attempts were documented and compared between groups.
Conclusions:
- Intraoperative application of the new navigation system minimizes trial and error, enhancing accuracy.
- The system effectively reduces operative time and radiation exposure.
- This novel, trackerless, C-arm image-based navigation system shows potential to supersede current tracker-based systems due to its universal, non-invasive, and superior performance characteristics.
