Bilateral sacral radiculopathy in a cyclist.
OBJECTIVE-PURPOSE: The purpose of this case report is to describe a gait disorder presenting as a bilateral sacral radiculopathy after vigorous cycling. Also, we discuss the pathogenic mechanisms and we revise the bibliography.


METHODS
The patient complained of a rapid painless weakness in legs, after intense and prolonged cycling 4 months ago. The physical and electromyographical examinations revealed important weakness in foot and knee flexors, and signs of acute denervation with mixed reinnervation (active and chronic) in myotomal S1 muscles, respectively. The lumbo-sacral magnetic resonance imaging were normal. The follow-up studies demonstrated gradually improvement in clinical and neurophysiological parameters.


CONCLUSIONS
We established that our patient presented a subacute bilateral S1 radiculopathy and we confirmed the progressive clinical and neurophysiological improvement. The radiculopathy are infrequent in cyclists, and its common origin is the external compressive aggression. In our patient we speculate and discuss that this radicular lesion could present different pathogenic mechanisms: the elongation, the compression and the secondary vasanervorum ischemia. In our knowledge S1 radiculopathy related to compressive lesions in sportsmen has not been previously described.
Unidad de Electromiografía Clínica, Servicio de Neurofisiología, Complejo Hospitalario Universitario de Albacete, Espana. josempardal@yahoo.es
J M
JM
Pardal-Fernández
B
B
Godes-Medrano
P
P
Jerez-García
D000328:Adult; D001642:Bicycling / Q000293:injuries* / Q000502:physiology; D020233:Gait Disorders, Neurologic / Q000000981:diagnostic imaging / Q000209:etiology / Q000503:physiopathology; D006801:Humans; D008160:Lumbosacral Plexus; D008297:Male; D011187:Posture / Q000502:physiology; D011843:Radiculopathy / Q000000981:diagnostic imaging / Q000209:etiology* / Q000503:physiopathology; D011859:Radiography