[Neurological complication after hip-flexed posture during labour with epidural analgesia]

Obstetrical positioning is used more and more often because of the supposed or proven benefits although side effects are not well known. We therefore report the case of a patient who presented with a postpartum neurological deficit after a seven hour hip-flexed posture during labour under epidural analgesia. The parturient did not complain of pain or discomfort during labour. The neurological injury was suspected because of delayed recovery of epidural analgesia induced-motor block. Neurological examination disclosed sensory and motor abnormalities in the left femoral and sciatic nerve distribution areas. The early performed lumbar CT scan did not show any complication and electromyographic evaluation performed on the ninth postpartum day was normal. Three months after delivery, some degree of neuropathic pain in the sciatic nerve distribution remained. The risk of neurological injury directly related to obstetrical positioning is discussed. Prolonged positioning using a posture which can induce nerve stretching should be avoided. This is especially true when the patient is receiving epidural analgesia which can mask pain or discomfort.