In plain language
In 20 thoracic spinal tumor surgeries, a navigation system cut fluoroscopy time by about a third and the primary surgeon's measured dose by 72% compared with standard C-arm guidance. This is a small dosimetry comparison, not a health outcome study.
At a glance
- Type of study
- Original research
- Who was studied
- Other surgeons, Patients
- Size
- n = 20 patients
- Summary based on
- the abstract
What it found
Dose to the primary surgeon was lower with the SAVN navigation system than with conventional C-arm guidance.
Key figures: 72.1% reduction, P < 0.01
Fluoroscopy screening time fell with SAVN.
Key figures: 26.8 + 12.4 to 17.1 + 9.2 s (36.2% radiation reduction, P < 0.05)
Fewer radiation attempts were needed with SAVN.
Key figures: 12.8 + 4.9 to 7.1 + 5.5 times, P < 0.05
Patient direct and scatter dose dropped in surgical and non-surgical regions.
Key figures: 30.4% (P < 0.05) surgical region; 47.6% (P < 0.01) non-surgical region
Clinical outcomes (pain, JOA score) improved similarly in both groups.
Limits to keep in mind
Very small study of 20 patients in a single surgical procedure type, with allocation method and country not described in the abstract; surgeon dose measured only for the primary surgeon, not other staff.
Related research summaries
- ICRP Publication 117. Radiological Protection In Fluoroscopically Guided Procedures Performed Outside The Imaging Department (2010, Guideline or consensus statement)
- AST Standards for Ionizing Radiation Exposure (Guideline or consensus statement)
- The impact of augmented reality on radiation exposure during spine surgery: a systematic review (2026, Systematic review)
- Fluoroscopy-minimization strategy for catheter ablation of Supraventricular Tachycardia by wOmen OPerators: the STOOP Multicentre Registry (2026, Prospective cohort study)
- Two Central Nervous System Tumors in One Catheter Lab: Time to Rethink Radiation Protection (2026, Retrospective cohort study)
How this summary was made
ORSIF prepared this summary with AI assistance from the abstract of the paper. A program then checked that the passage supporting each finding appears word for word in that source. A person has not yet reviewed each summary, so read the original before relying on a number. ORSIF summarizes research and does not endorse any product or company. Report a problem with this summary.
Prepared November 3, 2026.