[Sciatica with motor loss revealing meningoradiculitis due to varicella-zoster virus]. / Sciatique déficitaire révélant une méningoradiculite attachée au virus zona-varicelle.

Herpes zoster is a disease which occurs secondary to the reactivation of varicella-zoster virus. Motor involvement in acute herpes zoster is rare. We report a case of sciatica L5 due to herpes zoster infection with motor loss. Typical skin lesions occurred one week before the sciatica. Radiological finding did not explain the paresis. The diagnosis of zoster sciatica with motor involvement was suspected. Serological tests and cerebrospinal fluid examination established the diagnosis. The antiviral and physical treatment was conducted in order to improve functional outcome.