🔍 Key Findings
- 3D-printed drill guide technique (3D-DGT) resulted in fewer suboptimal screw placements than minimally invasive osteosynthesis (MIO) (7.14% vs 42.85%), though not statistically significant.
- Entry point translation (EPT) in the dorsoventral direction was significantly lower with 3D-DGT compared with MIO (p = .009).
- Maximum angular screw deviation (MASD) did not differ significantly between 3D-DGT and MIO in dorsal or transverse planes.
- Ventral cortical breach was the most common error with both techniques, more frequent with MIO.
- Achievement of >60% sacral bone purchase was more consistent with 3D-DGT (92.9%) than with MIO (64.3%).
- Modified Gras grade distribution was similar between techniques, with most screws graded as secure (“a” or “b”).
- 3D-DGT required substantially longer preoperative planning time than MIO (median 34 vs 8.5 minutes).
- Both techniques demonstrated overall acceptable accuracy, emphasizing the importance of CT-based planning and assessment.
Simini Surgery Review Podcast
🔍 Key Findings
- 3D-printed drill guide technique (3D-DGT) resulted in fewer suboptimal screw placements than minimally invasive osteosynthesis (MIO) (7.14% vs 42.85%), though not statistically significant.
- Entry point translation (EPT) in the dorsoventral direction was significantly lower with 3D-DGT compared with MIO (p = .009).
- Maximum angular screw deviation (MASD) did not differ significantly between 3D-DGT and MIO in dorsal or transverse planes.
- Ventral cortical breach was the most common error with both techniques, more frequent with MIO.
- Achievement of >60% sacral bone purchase was more consistent with 3D-DGT (92.9%) than with MIO (64.3%).
- Modified Gras grade distribution was similar between techniques, with most screws graded as secure (“a” or “b”).
- 3D-DGT required substantially longer preoperative planning time than MIO (median 34 vs 8.5 minutes).
- Both techniques demonstrated overall acceptable accuracy, emphasizing the importance of CT-based planning and assessment.
Simini Surgery Review Podcast
Know What Matters in the Literature - and Why
We distill peer-reviewed surgical studies into clinically relevant summaries and
exam-style questions, so you can make informed decisions with confidence.
Free Access. No Spam. Just Smarter Surgical Learning
Multiple Choice Questions on this study
Access the full library of surgical summaries and exam-style questions.
Educational content developed independently and supported by Simini.
The maker of Simini Protect Lavage.