We report the case of a 84-year-old patient who developed a monoplegia of t
he left inferior limb after a spinal anaesthesia for femoral neck's fractur
e. The magnetic resonance imaging (MRI) carried out in emergency, eliminate
d a spinal compression. The final diagnosis was a cerebral stroke. This obs
ervation leads us to discuss the choice of anaesthesia technical, the vario
us aetiologies of a neurological trouble after spinal anaesthesia. The appe
arance of clinical signs evoking a spinal haematoma, must make seek by the
imagery (MRI or scanner) the signs of spinal compression in order to propos
e an emergency laminectomy. Finally we insist on the importance but also on
the difficulties of the clinical examination in elderly traumatic patients
. (C) 2001 Editions scientifiques et medicales Elsevier SAS.