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Special considerations in pediatric cranial fixation: a technical overview
1Division of Plastic Surgery, Cleft Lip and Palate and Craniofacial Programs, University of Missouri-Children's Hospital, One Hospital Drive, Columbia, MO 65212, USA.
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Proper selection of cranial fixation plates is crucial for pediatric patients undergoing reconstruction. This study evaluates implant safety, imaging compatibility, and potential growth impacts in children, offering key recommendations for cranial fixation.
Area of Science:
- Neurosurgery
- Pediatric Orthopedics
- Biomedical Engineering
Background:
- Cranial reconstruction in pediatric patients has advanced with improved plate fixation systems.
- Growing skulls in infants and children present unique challenges for long-term implant management and imaging.
- Metallic implants necessitate careful consideration regarding safety and image artifact on CT and MRI scans.
Purpose of the Study:
- To evaluate the safety and image quality of metallic implants used in pediatric cranial reconstruction.
- To assess the impact of rigid plating systems on skull growth and potential implant migration.
- To provide recommendations for optimal cranial fixation in pediatric patients.
Main Methods:
- Retrospective analysis of 41 pediatric patients undergoing cranial reconstruction.
- Evaluation of approximately 205 implantable devices (plates and screws).
- Assessment of implant safety, imaging compatibility (CT/MRI), and effects on skull growth.
Main Results:
- Metallic implants can affect image quality on computerized axial tomography (CAT) and magnetic resonance imaging (MRI).
- Rigid plating systems may induce growth restriction in the pediatric skull.
- Potential for passive internal displacement of plates and screws, risking dural or cortical penetration.
Conclusions:
- Careful selection of cranial fixation systems is essential for pediatric patients.
- Long-term monitoring for implant-related complications, including growth disturbances and imaging artifacts, is necessary.
- Recommendations are provided for safe and effective cranial fixation in growing children.
Abstract:
Advances in plate fixation design have made possible traumatic and elective cranial reconstruction in pediatric patients. Plating systems must be selected properly, particularly in growing infants and children, in whom long-term computerized axial tomography (CAT) scanning and magnetic resonance imaging (MRI) may be necessary. Specific concerns include an actively growing skull with resulting dynamic bony contour changes. The results of 41 children with approximately 5 plates per case, totaling 205 implantable devices, were studied. This article addresses safety and image quality of metallic implants on CAT scan and MRI scanning, growth restriction induced by rigid plating systems, passive internal displacement of plates and screws with possible dural and cortical penetration, plate and screw isolation, and recommendations for cranial fixation in children.