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A novel Patient-Specific Three-Dimensional Printing Template Based on External Fixation for Pelvic Screw Insertion
Kaihua Zhou1,2, Xingguang Tao2, Fugen Pan2
1Department of Orthopedics, The First Affiliated Hospital of Soochow University, Soochow, China.
Summary
Novel 3D printing templates for pelvic screw insertion significantly reduce operation and radiation exposure times compared to fluoro-navigation. These patient-specific templates ensure accurate and safe screw placement in pelvic fracture treatment.
Area of Science:
- Orthopedic surgery
- Medical device technology
- Biomedical engineering
Background:
- Pelvic fractures pose significant surgical challenges.
- Accurate screw placement is crucial for successful pelvic fracture fixation.
- Traditional navigation techniques can be time-consuming and involve radiation exposure.
Purpose of the Study:
- To compare the clinical efficacy of patient-specific 3D printing templates with fluoro-navigation for pelvic screw insertion.
- To evaluate the impact of 3D printed templates on surgical time, radiation exposure, and accuracy.
Main Methods:
- Retrospective study of 18 pelvic fracture patients (July 2017-July 2018).
- Two groups: template group (8 patients, 15 screws) and fluoro-navigation group (10 patients, 22 screws).
- Analysis of screw insertion time, radiation exposure, and postoperative accuracy via CT scans.
Main Results:
- Template group showed significantly reduced screw insertion time (11.5 min/screw vs. 23.3 min/screw, P<0.05).
- X-ray exposure time was also significantly lower in the template group (11.5 s/screw vs. 19.1 s/screw, P<0.05).
- High accuracy in the template group with mean deviation of 2.6 mm and 2°.
Conclusions:
- Patient-specific 3D printing templates offer accurate and safe guidance for pelvic screw insertion.
- This novel approach significantly decreases operative and radiation exposure times.
- 3D printed templates represent a promising advancement in treating pelvic fractures.
