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Biomedical subjects

F Lesoin

Publications and source records attributed to F Lesoin.

At least 37 records · Page 2Linked to original sources
PubMed1989

[Recurrent meningitis, hydrocephalus and tegmen tympani dehiscence].

Cerebrospinal fluid (CSF) otorrhea is the usual presenting symptom of spontaneous tegmen tympani defects. A case associated with recurrent meningitis and CSF rhinorrhea without otorrhea is described. The coexistence of an hydrocephalus had led initially to ventriculoperitoneal shunting, which did not prevent meningitis recurrence. Previously reported in cases of anterior fossa and sella defects, an aqueduct stenosis was here associated with the tegmen tympani defect.

Adult↗
PubMed1989

[Autostatic lumbar retractor].

The authors present an autostatic lumbar retractor. Its advantages are: one side dissection, stability, possibility for a restricted and elective approach for lumbar microsurgery.

Humans↗
PubMed1989

[Secondary and late development of hematoma of the brain stem].

The functional and social outcome in 15 patients with brainstem hematomas surviving on the 15th day is reported. At the end of the first year post stroke, the main neurological deficits were sensory, postural and paresis of the 6th and 7th cranial nerves. This resulted from the preferential location of the lesions in the lateral and posterior pons. On a functional point of view, 8 patients were independent in daily living. Seven of them were regularly engaged in more elaborated activities, at home and outside: 1 had recovered his previous professional activities. Those functions evolved more slowly during the 2nd year and later on. A significant correlation was found between the initial neurological status and the functional outcome at 1 year, and also between the volume of the hematoma on C.T. scan and this outcome. In this series, the age of the patients was not correlated to the other variables.

Activities of Daily Living↗
PubMed1989

[Surgical treatment of lumbar foraminal disk herniation. Value and indications for an interlaminar and extra-articular combined approach].

From 62 foraminal herniations seen over 2 years, the authors present a series of 22 lumbar foraminal disc herniations operated on by a combined interlaminar and extra-articular approach. After describing the technique the results are analysed. The objective of the combined approach is to provide satisfactory foraminal liberation without damage to the articular structures. They also define the indications. These are based on precise analysis of the topography of the hernia, provided by CAT scan examination. Three major topographical types may thus be defined.

Adult↗
PubMed1989

[Cerebral blood flow deficit and thalamic infarcts. Topographic and neuropsychological confrontations].

Cerebral blood flow (C.B.F.) measurements with continuous xenon 133 inhalation and single photon emission tomography were performed in 11 patients with uni- or bilateral thalamic infarctions. Anterior infarction was associated with changes in parietal and anterior frontal C.B.F., thalamo-subthalamic infarctions with a more diffuse and definite reduction of C.B.F., thalamo-geniculate and superior juxta-thalamic lesions to a reduction of temporal and parietal C.B.F. A relative anatomo-functional concordance was found between the localization of the infarction and the cortical and deep situation of the C.B.F. reduction. Relations between the site of this reduction and the quality and degree of neuropsychological involvement were less clear. A verbal activation was realized in a patient with thalamo-subthalamic infarction which failed to evoke the C.B.F. elevation observed in normal subjects.

Adult↗
PubMed1988

[Screw fixation of the odontoid process].

Fractures of the odontoid process of the axis create problems of specific osteosynthesis. The different techniques described so far require an external support and limit the movements of the cranio-cervical joint. These 2 drawbacks are avoided by direct screw fixation of the odontoid process in cases where conditions are favourable to this procedure.

Axis, Cervical Vertebra↗
PubMed1988

[Choice of a technic of stabilization in surgical treatment of recent fractures of the odontoid process. 90 cases].

The objective of this study is to analyse the advantages and disadvantages of different surgical technics of odontoid process fracture stabilization. We try to find the best indications for each of them. We won't consider stable odontoid fractures which haven't treated by surgical therapy. A review of ninety acute dens fractures since 1979 has been analysed before 1985, the most of our injured person had a surgical stabilization by posterior approach. The analysis of our results had incited us, since that date, to vary our indications, by taking possibilities of anterior approach into consideration. So, have been realized 55 C1-C2 lacings, 20 of which with bone graft, 12 occipito-cervical arthrodesis, 10 screw fixations of odontoid process, 9 atlanto-axial arthrodesis by screw fixations, 2 posterior fixations by CD pediatric instrumentation, 1 Knodt instrumentation, 1 osteosynthesis by trans-oral exposure. Patients have been seen again, 1 month, 3 month, 6 month, 1 year later. Results have been estimated: Clinically by cervical mobility study in rotation and by local pain (16 excellent results, 24 good results, 27 middle results, and 23 bad results); Radiologically by analysis of specific complications of each technic (8 secondary removing, 6 incomplete deplacement corrections, 4 excessive corrections, 3 pseudarthrosis). We have regrouped global results technic by technic. We propose a therapeutic planning in which each technic can find the best result. The objective is to assure an effective retention by preserving movings of superior cervical spine.

Adolescent↗
PubMed1988

[Pseudotumoral cerebellar infarction of venous origin].

A case of venous thrombosis with pseudo-tumoral cerebellar infarction is reported. Cerebello-vestibular symptoms and intracranial hypertension had a progressive course over one and half month. CT showed an unilateral cerebellar lesion, with contrast medium enhancement and hydrocephaly. Thrombosis of the cerebellar superficial veins was found at surgical operation. A thrombosis of the transverse sinus was likely. No cause was discovered. This case, together with a published one, shows that a venous thrombosis may determine a cerebellar infarct.

Cerebellar Diseases↗
PubMed1988

[Post-traumatic intracavernous aneurysms. 2 cases].

The authors describe two cases of post-traumatic aneurysms of the intracavernous carotid artery. They analyze the difficulties they have encountered during direct approach. Direct cure was impossible for the first patient because of the arterial wall dilaceration. In the second case, the aneurysm has been treated upon by stitching. A second operation with injection of biological glue into the cavernous sinus was required because of the secondary formation of a carotido-cavernous fistula in front of a second metal fragment.

Adolescent↗
PubMed1987

[Percutaneous surgery of the lumbar disk].

Percutaneous discectomy is performed with an equipment which has proved reliable in urological surgery, namely dilators and optic fibers. Carried out under local anaesthesia, it empties the intervertebral disc by an extra-spinal route, thus reducing the risk of fibrosis which is almost constant when the interlaminar route is used. Its indications must be discussed with those of chemonucleolysis.

Adult↗
PubMed1987

[Surgical prognosis of unruptured intracranial arterial aneurysms. 50 cases].

The authors have reviewed a series of 53 patients with unruptured intracranial arterial aneurysm. Out of 50 patients operated upon, 2 died post-operatively, 5 remained with neural deficits that were present before surgery, and 43 were cured without subsequent cerebral or meningeal haemorrhage. None of the 3 unoperated patients developed cerebral vascular accidents. In 25 cases the aneurysm was asymptomatic and was discovered accidentally during angiography; it varied in size from 3 to 6 mm. In 28 cases, the aneurysm gave rise to various symptoms, including headache or facial pain (9 cases), ischaemic vascular accident (7 cases), ocular symptoms (8 cases), seizures (4 cases); its size ranged from 7 to 10 mm. The clinical and post-mortem series available in the literature show the usefulness of surgery in patients presenting with factors that increase the risk of rupture, i.e.: age comprised between 40 and 65 years, history of arterial hypertension, aneurysm located on the anterior segment of Willis' circle and about 10 cm in diameter, which is the critical size for rupture.

Adult↗
PubMed1987

Bilateral spontaneous dissection of extracranial vertebral arteries.

A previously healthy 35-year-old man suddenly developed vertebrobasilar ischaemia while playing tennis. Cerebral arteriography revealed a dissecting aneurysm of the cervical portion of both vertebral arteries. The neurological deficit and the angiographic features resolved with anticoagulant treatment alone. Only 15 patients with non-traumatic extracranial vertebral artery dissection have been previously reported. It is necessary to recognize the condition very quickly, because the authors consider that anticoagulation is required as an emergency.

Adult↗