A 4-year-old girl who sustained the hemiplegic cerebral palsy and subsequent spasticity in the left upper extremity underwent the C7 nerve root rhizotomy and the contralateral C7 nerve root transfer to the ipsilateral middle trunk of brachial plexus through an interpositional sural nerve graft. In a 2-year follow-up, the results showed a reduction in spasticity and an improvement in extension power of the elbow, the wrist, and the second to fifth fingers. Scores from both Quality of Upper Extremity Skills Test and Modified Ashworth Scale tests had been significantly improved during follow-up. The outcomes from this case provided the evidence that combined the C7 nerve root rhizotomy and contralateral healthy C7 nerve root transfer to the ipsilateral middle trunk of brachial plexus not only partially released flexional spasticity but also strengthened extension power of the spastic upper extremity in children with the cerebral palsy.
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