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Navigated pedicle screw placement using computed tomographic data in dorsolumbar fractures
Saurabh Kapoor1, Rajbahadur Sharma2, Sudhir Garg3
1Department of Orthopaedic Surgery, Government Medical College and Hospital, Chandigarh, India.
Indian Journal of Orthopaedics
|November 19, 2014
Summary
Computed tomographic (CT) based navigation significantly improves pedicle screw placement accuracy in dorsolumbar fractures. This technique offers benefits like reduced complications and radiation exposure, though cost is a consideration.
Area of Science:
- Spinal surgery
- Orthopedic technology
- Surgical navigation
Background:
- Computed tomographic (CT) based navigation enhances pedicle screw placement accuracy.
- This technique may prevent complications from pedicle wall breaches.
Purpose of the Study:
- To assess the efficacy of CT-based navigation for dorsolumbar fractures.
- Evaluate accuracy and complications of pedicle screw placement.
Main Methods:
- 30 patients with dorsolumbar spine fractures (T9-L5) underwent surgery using an optoelectronic navigation system.
- Pedicle screw placement accuracy was evaluated via postoperative CT scan using Laine's grading system.
- Surgical time and neurovascular complications were recorded.
Main Results:
- A low misplacement rate of 0.847% (1 of 118 screws) was observed.
- Average screw insertion time was 4.19 minutes.
- No neurovascular complications were reported during the 1-year follow-up.
Conclusions:
- CT-based navigation is effective for accurate pedicle screw placement in dorsolumbar spine injuries.
- Benefits include reduced radiation exposure and improved ergonomics.
- High initial costs are a concern, particularly in developing countries.
