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Updated: Sep 2, 2026
Intraoperative Ultrasound in Spinal Surgery
Published on: August 17, 2022
Cerebral and spinal MR-findings in patients with postrepair myelomeningocele
1Institut für klinische Strahlenkunde, Klinikum der Johannes Gutenberg-Universität, Mainz, FRG.
Abstract:
In 114 patients with postrepair myelomeningocele MRI of the spine was performed. Tethered cord (89%) and associated malformations (syrinx, lipoma etc.) (33%) were the most important findings. Additional MRI scans of the head (44 patients) revealed numerous further anomalies. Arnold Chiari malformation was found in 76% of the patients (ACM I:32%, ACM II:44%). In the ACM II group compression of lower cranial nerves, brain stem, and cerebellum can lead to considerable neurologic symptoms. Therefore in patients with progressive neurologic dysfunction a complete investigation of the whole spine and brain is necessary. MRI proves to be the diagnostic procedure of choice in patients with dysraphic myelodysplasia.
Insights
Magnetic resonance imaging (MRI) is crucial for diagnosing post-surgical myelomeningocele complications. It effectively identifies tethered cords and associated brain and spine malformations, including Arnold-Chiari malformation.
Area of Science:
- Neuroscience
- Radiology
- Pediatric Surgery
Background:
- Myelomeningocele repair can lead to significant neurological complications.
- Post-surgical assessment is vital for managing these complex conditions.
Purpose of the Study:
- To evaluate the utility of MRI in identifying spinal and cranial anomalies after myelomeningocele repair.
- To determine the prevalence of specific malformations such as tethered cord and Arnold-Chiari malformation.
Main Methods:
- Retrospective analysis of MRI scans of the spine (n=114) and head (n=44) in patients post-myelomeningocele repair.
- Detailed review of findings including tethered cord, syrinx, lipoma, and Arnold-Chiari malformation (ACM).
Main Results:
- Tethered cord was found in 89% of spinal MRIs.
- Associated spinal malformations (syrinx, lipoma) occurred in 33%.
- Arnold-Chiari malformation (ACM I and II) was present in 76% of cranial MRIs, with ACM II linked to neurological symptoms.
Conclusions:
- MRI is the preferred diagnostic tool for dysraphic myelodysplasia.
- Complete spinal and cranial MRI investigations are necessary for patients with progressive neurological dysfunction.
- Early detection of malformations like tethered cord and ACM is critical for patient management.
