References of "Lenelle, Jacques"
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See detailPrimary cerebral lymphoma. A retrospective study of 32 patients
Dubuisson, Annie ULg; Kaschten, Bruno ULg; Lenelle, Jacques ULg et al

Conference (2002, April 25)

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See detailAcute traumatic central cord syndrome: magnetic resonance imaging and clinical observations
Collignon, F. D.; Martin, Didier ULg; Lenelle, Jacques ULg et al

in Journal of Neurosurgery (2002), 96(1 Suppl), 29-33

Object. Acute traumatic central cord syndrome has been classically thought to be caused by a hemorrhage that primarily affects the central part of the spinal cord and that destroys the axons of the inner ... [more ▼]

Object. Acute traumatic central cord syndrome has been classically thought to be caused by a hemorrhage that primarily affects the central part of the spinal cord and that destroys the axons of the inner part of the corticospinal tract devoted to the motor control of the hands. Some authors, however, have proposed that its pathogenesis is based on the destruction of the motor neurons supplying the muscles of the hand. To test the validity of these two theories, the authors retrospectively studied the magnetic resonance (MR) images obtained in 18 cases of acute traumatic central cord syndrome (ATCCS) to assess the presence of intramedullary blood and to define the distribution of the abnormal signal intensities in the cervical spinal cord. Methods. The authors used the American Spinal Injury Association (ASIA) motor scale to assess upper- and lower-limb deficits and to evaluate its metameric distribution. The abnormal intramedullary signal was then compared with the distribution of the motor deficit. All MR imaging sessions performed in the acute stage revealed a hyperintense signal on T-2-weighted sequences without any signal change suggesting the presence of intramedullary blood. The localization of this signal was distributed predominantly from the C3-4 to the C5-6 disc levels. The mean ASIA motor score was 74.3 of 100, with an unequal representation between the upper and lower limbs (32 of 50 compared with 42.3 of 50, respectively). The metameric distribution of the deficit was also unequal, with a major deficit in hand function (C8-T1) compared with the more proximal cord segments (5.2 of 10 compared with 7.8 of 10, respectively). This demonstrates the absence of any correlation between the hyperintense signal and the motor deficit distribution. Conclusions. Acute traumatic central cord syndrome cannot be explained by the injury to the gray matter at the level of motor neurons supplying the hand muscles. In agreement with recently published data, the results of this series confirm the absence of intramedullary hemorrhage and corroborate the hypothesis that ATCCS may be explained by the impairment of the corticospinal tract, which can be affected globally. [less ▲]

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See detailJuxtafacet Cyst of the Lumbar Spine. Clinical, Radiological and Therapeutic Aspects in 28 Cases
Salmon, B.; Martin, Didier ULg; Lenelle, Jacques ULg et al

in Acta Neurochirurgica (2001), 143(2), 129-34

OBJECT: A consecutive series of 28 "operated" juxtafacet cysts is reported. We emphasize the clinical and radiological aspects leading to diagnosis. We also discuss the results of the surgical treatment ... [more ▼]

OBJECT: A consecutive series of 28 "operated" juxtafacet cysts is reported. We emphasize the clinical and radiological aspects leading to diagnosis. We also discuss the results of the surgical treatment. MATERIAL AND METHODS: Medical information and radiological studies involving 28 patients were analyzed. Each patient has been operated on by decompressive laminectomy and resection of the cyst. The diagnosis was always confirmed by a pathological examination. The cyst most frequently occurred at the L4-L5 level (n = 18), and seldom at the L5-S1 (n - 6) or L3-L4 (n - 4) levels. RESULTS: The differential diagnosis from other pathological causes responsible for a radicular compression could not be done by physical examination. Spine X-rays or myelogram were nonspecific. Computed Tomography or CT-myelography could help in the diagnosis but MR imaging was the most sensitive. In our series, the respective sensitivities of these techniques are 56, 42 and 77%. The preoperative diagnosis was correct in 18 patients (64%). The cyst was sometimes adherent to the underlying dura, then significantly increasing the risk of dural tear and spinal fluid leak, especially when located at L3-L4 level. Surgical ablation lead to a complete recovery or an important improvement in 26 patients. CONCLUSIONS: The diagnosis of the juxtafacet cyst of the lumbar spine is better achieved by MRI. Surgery is the gold standard treatment, safe and long-term effective. When a total cyst removal with an internal facetectomy are performed, recurrence is exceptional. [less ▲]

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See detailPosterior epidural migration of sequestered lumbar disc fragments. Report of two cases.
Robe, Pierre ULg; Martin, Didier ULg; Lenelle, Jacques ULg et al

in Journal of Neurosurgery (1999), 90(2 Suppl), 264-6

The posterior epidural migration of sequestered lumbar disc fragments is an uncommon event. The authors report two such cases in which patients presented with either intense radicular pain or cauda equina ... [more ▼]

The posterior epidural migration of sequestered lumbar disc fragments is an uncommon event. The authors report two such cases in which patients presented with either intense radicular pain or cauda equina syndrome. The radiological characteristics were the posterior epidural location and the ring enhancement of the mass after injection of contrast material. The major diagnostic pitfalls are discussed. [less ▲]

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See detailAnalyse des facteurs pronostiques des gliomes cérébraux
Kaschten, Bruno ULg; Dubuisson, Annie ULg; Lenelle, Jacques ULg et al

Conference (1998, March 14)

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See detailComparative Evaluation of Cerebral Aneurysms with Selective Arterially Enhanced Ct and Dsa
Vanderschelden, P.; Flandroy, P.; Dondelinger, R. F. et al

in European Radiology (1998), 8(7), 1181-6

The purpose of our study was to compare selective arterially enhanced spiral computed tomographs (ACT) with digital subtraction angiographies (DSA) in the presurgical assessment of cerebral aneurysms. A ... [more ▼]

The purpose of our study was to compare selective arterially enhanced spiral computed tomographs (ACT) with digital subtraction angiographies (DSA) in the presurgical assessment of cerebral aneurysms. A total of 24 aneurysms in 18 patients were explored in a prospective study by ACT and DSA, using an interactive combined CT-angiography suite. Dimensions of the aneurysm, its relation to the parent vessel, and the aneurysmal index were defined on DSA and on surface-shaded display of 3D reformatted images obtained from ACT. Results were correlated with surgical findings. Three aneurysms suspected on DSA were not confirmed by ACT. One fusiform aneurysm suspected on DSA corresponded to a sacciform aneurysm on ACT. Surgical findings confirmed 20 sacciform aneurysms. The aneurysmal index could be measured in all 20 cases of sacciform aneurysms on ACT and could not be determined with confidence in 55 % of the cases on DSA. DSA and ACT gave identical results in 35 % of cases. In 10 %, the index measured by ACT was superior to that determined by DSA for aneurysms which had a diameter of less than 3 mm. In conclusion, the combination of DSA and ACT improved the results of DSA alone. ACT is a reliable method to measure the aneurysmal index in aneurysms with a diameter superior to 3 mm. [less ▲]

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See detailLe pied tombant (foot drop). Un problème de diagnostic différentiel
Dubuisson, Annie ULg; Martin, Didier ULg; Lenelle, Jacques ULg et al

in Revue Médicale de Liège (1997), 52(5), 355-62

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See detailIntraarterial spiral CT angiography combined with DSA in pretherapeutic assessment of cerebral aneurysms.
Flandroy, P.; Vanderschelden, P.; Dondelinger, Robert ULg et al

Conference (1996, September 21)

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See detailLes hernies discales dorsales : a propos de 7 cas opérés
Dubuisson, Annie ULg; Lenelle, Jacques ULg; Martin, Didier ULg et al

Conference (1996, March 16)

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See detailPretherapeutic assessment of cerebral aneuvrysms with arterially enhanced spiral CT
Vanderschelden, P.; Flandroy, P.; Dondelinger, Robert ULg et al

Conference (1995, November 26)

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See detailTraitement préchirurgical par octréolide dans l'acromégalie.
Stevenaert, Achille ULg; Lenelle, Jacques ULg; Martin, Didier ULg et al

Conference (1995, March 11)

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See detailPresurgical Octreotide Treatment in Acromegaly : does it improve surgical cure rate?
Stevenaert, Achille ULg; Lenelle, Jacques ULg; Martin, Didier ULg et al

in 10th European Congress of Neurosurgery - Abstract book (1995)

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See detailCentral neuroblastoma in a 14 year-old girl
Hoyoux, Cl; Dresse, Marie-Françoise ULg; Misson, Jean-Paul ULg et al

in 4th International Symposium on Neuroblastoma Screening (1995)

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