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Gait is not Affected by Hemispherotomy-Case Report from Two Children
Nathalie Alexander1,2, Johannes Cip3, Elisabeth Müller4
1Laboratory for Motion Analysis, Department of Paediatric Orthopaedics, Children's Hospital of Eastern Switzerland, Street Gallen, Switzerland.
Neuropediatrics
|January 27, 2023
Summary
Hemispherotomy, a surgical disconnection of one brain hemisphere for refractory epilepsy, shows variable effects on children's gait. Quantitative analysis revealed no change in one patient, but subtle differences in another, highlighting the need for further research.
Area of Science:
- Pediatric Neurology
- Neurosurgery
- Rehabilitation Medicine
Background:
- Epilepsy in children often requires advanced treatment strategies when standard therapies fail.
- Hemispherotomy, a surgical hemisphere disconnection, is a recognized option for severe, intractable epilepsy.
- Previous research on hemispherotomy primarily focused on visual and upper limb function, with limited quantitative data on gait.
Observation:
- This study involved two pediatric patients with structural, therapy-refractory epilepsy and prenatal ischemic brain lesions.
- Both patients underwent hemispherotomy around age seven.
- Quantitative three-dimensional gait analysis was performed pre- and post-operatively as part of routine care.
Findings:
- One patient exhibited no significant alterations in gait pattern after hemispherotomy.
- The second patient demonstrated observable differences in gait parameters post-surgery, as detected by three-dimensional gait analysis.
- Postoperative gait deviations in the second patient might be influenced by natural day-to-day variability.
Implications:
- Quantitative gait analysis provides valuable insights into the functional outcomes of hemispherotomy beyond traditional assessments.
- The variability in gait responses suggests individualized patient factors influence post-surgical motor function.
- Further research with larger cohorts is needed to fully understand the long-term effects of hemispherotomy on gait and to establish normative data.

