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Unilateral C1 split fracture osteosynthesis using a patient-specific three-dimensional-printed guide: Technique
Ignacio J Barrenechea1, Luis Márquez1, Andrés E Bruna2
1Department of Neurosurgery, Hospital Privado de Rosario, Santa Fe, Argentina.
Journal of Craniovertebral Junction & Spine
|January 24, 2022
Summary
A novel 3D-printed guide plate facilitates accurate C1 lag screw placement for split atlas fractures. This patient-specific surgical tool offers a safe, effective, and cost-efficient alternative for treating these complex cervical spine injuries.
Area of Science:
- Orthopedic Surgery
- Biomedical Engineering
- Neurosurgery
Background:
- Split-type C1 lateral mass fractures often exhibit progressive displacement, necessitating surgical intervention.
- Standard surgical techniques for C1 split fractures can be challenging due to fragment instability.
- Early surgical treatment is frequently recommended to prevent further displacement and complications.
Observation:
- A custom-designed, patient-specific 3D-printed guide plate was developed to aid in C1 lag screw placement.
- The guide plate was utilized in a 57-year-old female patient with a C1 lateral mass split fracture requiring primary osteosynthesis.
- The 3D-printed guide facilitated accurate intraoperative placement of a lag screw to secure both fracture fragments.
Findings:
- The use of the custom 3D-printed guide plate enabled precise lag screw insertion, achieving stable osteosynthesis.
- The surgical procedure was uneventful, with the patient discharged within 72 hours.
- Postoperative CT scans at 12 months demonstrated excellent fracture consolidation.
Implications:
- Patient-specific 3D-printed guides offer a safe, accurate, and cost-effective method for treating C1 lateral mass split fractures.
- This technology presents a viable alternative to intraoperative imaging and image-guided surgery systems.
- The approach may improve surgical outcomes and reduce healthcare costs for atlas fractures.

