Could a Simple Information Booklet Modify Low Back Pain Patients Beliefs After Lumbar Discectomy?

Inclusion Criteria: * A common monoradicular sciatica on a slipped disc with a clinical radio agreement requiring a surgical treatment, after failure of an good ambulatory treatment carried out, one duration of evolution higher than four weeks at naive subjects of any rachidian intervention Exclusion Criteria: * People presenting a cruralgia, a secondary sciatica (epiduritis, osseous metastasis...) or without relationship with a slipped disc (spinal stenosis), an lesion biradicular, an horse tail syndrome, an important motor deficit (muscular testing \< 3) * Cognitive, auditive, major visual disorders or any subject which does not have a good comprehension of spoken French and/or writing, or having recourse to a third for reading and supplementing a document * Subjects presenting a peripheral neuropathy, a severe and evolved diabetes, a cardiac insufficiency, dialysed subject * People observing a treatment which included psychotropics for more than three months (other that light hypnotic) because of the disturbances of vigilance and memory