Background: Spasticity and muscle weakness are common severe neurologic sequelae after stroke. Contralateral peripheral neurotization has been applied successfully to promote motor function of the hemiplegic upper extremity in patients with central neurological injury. To our knowledge, we present the first report of contralateral lumbar to sacral nerve transfer for the lower extremities in hemiplegic patients after stroke.
Case Description: Two patients were enrolled in the study. The first patient is a 57-year-old man who experienced permanent muscle weakness in his left leg after a right cerebral infarction. The second patient is a 42-year-old man who had spasticity and hemiplegia in both upper and lower limbs on the right side 32 months after a left cerebral hemorrhage. Both patients underwent contralateral lumbar-to-sacral nerve rerouting to improve lower-limb motor function. Twenty months after surgery, both patients experienced significant improvement in ambulatory status.
Conclusions: Although long-term follow-up and a randomized controlled trial are required, this study demonstrates the safety and possible benefits of contralateral lumbar-to-sacral nerve transfer for hemiplegic patients after stroke. This novel surgical approach could provide a new means for lower-limb motor functional recovery.
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