Ph Mercier

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In order to further investigate script knowledge in patients with frontal lobe lesions (FP), 30 participants with frontal brain damage, 14 controls with posterior brain damage (PC) and 30 normal controls (NC) were asked to sort script actions with various degrees of centrality and distinctiveness according to the script to which they belonged and their(More)
Grasping is associated with frontal lobe pathology. Nevertheless, there is lack of precise anatomical correlations and very few studies are published. The aim of the study was to determine the incidence of the grasping and its relationship to cerebral lesions. We studied 236 patients admitted to the Neurology Department (108 women and 128 men; mean age(More)
A micro anatomical and surgical study of the orbit was conducted on cadaver specimens. First of all we reviewed the anatomy of the orbit with special emphasis on microanatomical structures. Three neurosurgical approches are then described with all structures encountered along these routes. The superior approach which provides a good access to the superior(More)
We report the results of an investigation carried out on the activity of functional neurosurgery of the cranial nerves in the French-speaking countries, based on the analysis of a questionnaire addressed to all the members of the SNCLF. Eighteen centers responded to this questionnaire, which showed that activities and indications varied greatly from one(More)
BACKGROUND AND PURPOSE Avulsion of nerve roots associated with the brachial plexus results in dramatic lesions with a prognosis which remains poor to this day. These lesions are considered as involving the central nervous system and therefore not amenable to surgical repair. However, the results of many experiments in animals have shown that if continuity(More)
This chapter on surgical anatomy is addressed to young neurosurgeons and could be used as an introduction to basic neurosurgical technique. It aims to cover the basic anatomy relevant to making incisions in the scalp and creating bone flaps, an essential preliminary to any form of intracranial surgery. We will examine the anatomy of the scalp, its arterial(More)
Avulsion of nerve roots from the cervical spinal cord has always been considered as an untreatable injury, even by surgeons with expertise in this area. However, numerous experimental studies in animals, as well as a human case report, showed that if continuity is restored between the spinal cord and nerve roots, axons from spinal motor neurons can regrow(More)
We report two cases of spinal cord herniation. The first one concerns a 28 year-old female who presented with an eighteen-month past history of spasticity of the right lower limb associated with somesthetic sensorial disturbances of the left side with a T4 level, related to a T3-T4 spinal cord herniation. The second case concerned a 58 year-old female with(More)
On account of the complex anatomy at the base of skull, surgery here may result in post operative cranial n. deficits. Facial palsy is often feared and its effects upon the patient's psychological and emotional well-being can be catastrophic. The modest results and the side effects of the facio-hypoglossal anastomosis used for facial rehabilitation have led(More)
The purpose of this study is to review the topographic anatomy of the petrous and peripetrous structures, with emphasis on the relationships important to the lateral approaches to the posterior and lateral skull base. Surgical exposure of the clivus, the posterior aspect of the petrous bone, the ventral aspect of the brain stem, and of all the intradural(More)