Thirty patients in whom others found equivocal plantar reflexes were studied clinically and electromyographically (EMG-og flexor hallucis brevis, extensor hallucis longus, and tibialis anterior), during mechanical stimulation of the sole. Bias of recording or interpretation of EMG was excluded. The study was repeated after one week; the EMG outcome was reproducible in 26 patients (87%). Of these 26, a pathological reflex was suspected by the clinician in 17, but shown by EMG in only six patients. Compared with the 'final' diagnosis, false-pathological EMG results did not occur; conversely, EMG criteria were wide enough to demonstrate expected, but clinically unconvincing, Babinski signs. Various factors that cause false impressions in the routine situation could be identified. Provided one has some experience with reference groups, EMG can improve clinical interpretation of equivocal plantar responses.
Statistics from Altmetric.com
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.