Changes of Dermatomal Somatosensory Evoked Potentials in the Children with Spastic Cerebral Palsy after Selective Posterior Rhizotomy.
- Author:
Eun Sook PARK
1
;
Chang Il PARK
;
Ji Cheol SHIN
;
Seong Woo KIM
;
Soh Young BAEK
Author Information
1. Department of Rehabilitation Medicine, Yonsei University College of Medicine.
- Publication Type:Original Article
- Keywords:
Cerebral palsy;
Dermatomal somatosensory evoked potential;
Selective posterior rhizotomy;
Spasticity
- MeSH:
Cerebral Palsy*;
Child*;
Evoked Potentials, Somatosensory*;
Hemiplegia;
Humans;
Muscle Spasticity*;
Rhizotomy*
- From:Journal of the Korean Academy of Rehabilitation Medicine
1998;22(6):1219-1224
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
OBJECTIVE: To evaluate the changes of dermatomal SEP (DSEP) in children with a spastic cerebral palsy (CP) after the selective posterior rhizotomy (SPR). METHOD: The subjects were 14 spastic CP children, with the age from 3 to 6 years old, who underwent SPR. DSEPs were studied at the L2-3, L4, L5, S1 dermatomes bilaterally, pre and postoperatively. Postoperative DSEPs were interpreted by the changes of latency, amplitude and waveforms. RESULTS: 1) All children were spastic diplegia except one who was a spastic hemiplegia. 2) Preoperative DSEPs were flat or severely distorted in 40 of 112 waveforms (34.5%). 3) Postoperative DSEP latencies were no change in 39.3%, improved in 17.9%, and worsened in 25.6% respectively. Amplitudes were no change in 30.8%, improved in 38.5%, and worsened in 13.7% respectively. Waveforms were no change in 64.1%, improved in 22.2%, and worsened in 8.5% respectively. There was no statistical difference of postoperative changes of the 3 categories according to the root levels. CONCLUSION: The results showed that the preoperative DSEPs were abnormal in 34.5% suggestive the lesions of CP being more widespread than strictly involving the motor system. This study confirmed that the most SEPs unchanged by the SPR. A further study for the relationship of postoperative DSEP changes and clinical findings such as functional impairment would be needed.
