Electromyography before and after surgery for hip deformity in children with cerebral palsy. A comparison of clinical and electromyographic findings

Twenty-three ambulatory children with spastic diplegic cerebral palsy were evaluated clinically and by electromyography before and after hip-muscle surgery. The stretch tests originally designed to distinguish specific muscle tightness and spasticity were found to be non-specific when tested by elec...

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Bibliographic Details
Published inJournal of bone and joint surgery. American volume Vol. 58; no. 2; p. 201
Main Authors Perry, J, Hoffer, M M, Antonelli, D, Plut, J, Lewis, G, Greenberg, R
Format Journal Article
LanguageEnglish
Published United States 01.03.1976
Subjects
Adolescent
Cerebral Palsy - complications
Cerebral Palsy - physiopathology
Cerebral Palsy - surgery
Child
Electromyography
Female
Gait
Hip Contracture - etiology
Hip Contracture - physiopathology
Hip Contracture - surgery
Humans
Male
Muscle Tonus
Muscles - physiopathology
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Summary:Twenty-three ambulatory children with spastic diplegic cerebral palsy were evaluated clinically and by electromyography before and after hip-muscle surgery. The stretch tests originally designed to distinguish specific muscle tightness and spasticity were found to be non-specific when tested by electromyography. Ambulatory electromyograms using needle electrodes and telemetry generally showed decreased activity in the released muscles and, on occasion, changes in activity in muscles not operated on. These unanticipated changes after release may explain some of the unpredictability of results of such procedures in cerebral palsy.
ISSN:0021-9355
DOI:10.2106/00004623-197658020-00007