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  • Title: Electromyography before and after surgery for hip deformity in children with cerebral palsy. A comparison of clinical and electromyographic findings.
    Author: Perry J, Hoffer MM, Antonelli D, Plut J, Lewis G, Greenberg R.
    Journal: J Bone Joint Surg Am; 1976 Mar; 58(2):201-8. PubMed ID: 1254625.
    Abstract:
    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.
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