RESUMEN
We performed electrophysiologic evaluation in three adult patients with diagnosis of tethered cord syndrome confirmed by magnetic resonance imaging. In addition to lower motor neuron lesion signs in the lumbar and sacral myomeres we noticed shortened latencies for the H and bulbocavernosus reflexes. H reflex latencies ranged from 23.3 to 26.0 ms; bulbocavernosus reflex latencies ranged from 18.2 to 20.2 ms. The low location of the conus medullaris accounts for the shortening of the monosynaptic H reflex and for a part of the shortening of the polysynaptic bulbocavernosus reflex, anoxia of the conus being probably another important factor. In the absence of previous description of alternative pathology accountable for such a shortening, our observations suggest that shortened sacral reflex latencies might be specific of the tethered cord syndrome.
Asunto(s)
Plexo Lumbosacro/fisiopatología , Reflejo/fisiología , Espina Bífida Oculta/fisiopatología , Femenino , Reflejo H/fisiología , Humanos , Imagen por Resonancia Magnética , Masculino , Persona de Mediana Edad , Tiempo de Reacción , Espina Bífida Oculta/diagnósticoAsunto(s)
Vértebras Cervicales/diagnóstico por imagen , Espondilolistesis/diagnóstico por imagen , Vértebras Cervicales/cirugía , Humanos , Masculino , Persona de Mediana Edad , Mielografía , Parestesia/etiología , Fusión Vertebral , Espondilolistesis/complicaciones , Tomografía Computarizada por Rayos XRESUMEN
The authors report the evolution of 54 patients suffering from complete paralysis of the seventh cranial nerve. They point out the interest of a good diagnose and a multidisciplinary treatment including: drugs, infiltration, kinesitherapy and electrotherapy. A good repair (77%) is obtained if the treatment is early and regular. This therapy will be used according the results of clinical and electrophysiological examinations.