Abstract:
:The purpose of this in vitro study is to compare the stabilities provided by anterior cervical H-plating with screws purchased either subcortically or bicortically on porcine cervical spines. Nine porcine cervical spines (C3-C4) were challenged by 12 Nm in extension followed by 6 Nm in flexion in 6 consecutive steps, i.e., (1) when disc was intact, (2) after discectomy. Subsequently, a tricortical bone graft was inserted to simulate interbody fusion. Each specimen was tested again (3) when plated with 16 mm screws to purchase subcortically and (4) after cyclic loading (f = 0.5 Hz, n = 1000), (5) when plated with 30 mm screws to purchase bicortically and (6) after cyclic loading. Neutral zone and range of motion were parameters normalized for comparison. The results showed comparable stability in constructs plated with screws purchased either subcortically or bicortically before cyclic loading. Cyclic loading deteriorated construct-bone relation in both groups, yet bicortically purchased screws rendered additional stability in anterior cervical plating.
journal_name
Acta Neurochir (Wien)journal_title
Acta neurochirurgicaauthors
Chen IHdoi
10.1007/BF01411356subject
Has Abstractpub_date
1996-01-01 00:00:00pages
167-73issue
2eissn
0001-6268issn
0942-0940journal_volume
138pub_type
杂志文章abstract::Somatosensory evoked potentials (SEP) and intracranial pressure (ICP) were studied in cats, suffering from a chronic space-occupying lesion produced by enlargement of an epidural balloon over the left sensomotory cortex. Our study shows that latency alterations of SEP are not dependent on the degree of ICP. Additional...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01446995
更新日期:1993-01-01 00:00:00
abstract::Changes of plasma thromboxane level in subarachnoid haemorrhage (SAH) were studied clinically and experimentally using 11-dehydro-thromboxane B2 (11 DTX) as a measuring index. 11 DTX is a major long-lived metabolite formed from thromboxane (TX) B2, and is said to be a more reliable parameter for detecting TXA2 product...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01403202
更新日期:1991-01-01 00:00:00
abstract:BACKGROUND:In patients with a vestibular schwannoma, some studies have reported that useful hearing preserved initially after surgery deteriorates gradually in the long term. Studies with more patients are needed to clarify the maintenance rate of postoperative hearing function and to identify prognostic of hearing fun...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-020-04523-2
更新日期:2020-11-01 00:00:00
abstract:BACKGROUND:In terms of response to fractionated radiotherapy, metastatic brain tumors of certain origins are considered radioresistant. OBJECTIVE:To determine the influence of "radioresistant" histology on outcomes of brain metastases treated with radiosurgery. METHODS:Between 2001 and 2017, 121 patients with brain m...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-018-3726-2
更新日期:2018-12-01 00:00:00
abstract::It is not clear whether the pre-operative treatment of GH-secreting pituitary adenomas with Octreotide improves the surgical remission rates of acromegaly. In a prospective controlled study the results of transsphenoidal surgery in newly diagnosed GH-secreting macro-adenomas were compared in patients with (n = 11, gro...
journal_title:Acta neurochirurgica
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/s007010050316
更新日期:1999-01-01 00:00:00
abstract:PURPOSE:We aim to analyse the relationship between the quality of information during the decision-making process regarding surgery to treat high-grade gliomas and the level of anxiety of the patients. METHODS:This is a transversal, descriptive and correlational study on 26 patients with a clinical and radiological dia...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-009-0195-7
更新日期:2009-04-01 00:00:00
abstract:BACKGROUND:Wnt proteins are bifunctional axon guidance molecules, several of which appear to mediate guidance of corticospinal tract axons along the spinal cord. Here, we studied increasing effect on regeneration by Wnt-containing alginate scaffolds on spinal cord injury (SCI). METHODS:A total of 32 rats were injured ...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-013-1663-7
更新日期:2013-05-01 00:00:00
abstract::To evaluate the operative mortality and morbidity of definitive intracranial microsurgical aneurysm obliteration as a function of timing of early operative intervention and as a function of clinical condition at the acute state, we retrospectively review 164 consecutive patients who underwent surgery within 72 hours f...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01728872
更新日期:1982-01-01 00:00:00
abstract::A surgical carbon dioxide laser unit (laser) has been used since 1977 in twenty-five cases of various brain tumours, including ten meningiomas (four sphenoid ridge, two parasagittal, two falx, one olfactory, one posterior fossa), eleven gliomas (seven glioblastoma, four astrocytoma), two metastatic brain tumours, one ...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF02074786
更新日期:1980-01-01 00:00:00
abstract:BACKGROUND:Public engagement has become one of the most effective tools in gaining feedback and perspectives from members of the public, involving patients with decisions, and inspiring young people to carry the medical profession forwards. Brainbook is a multi-platform, social media-based resource that was created spe...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-018-3757-8
更新日期:2019-01-01 00:00:00
abstract:BACKGROUND:In surgical treatment of acute subdural hematoma (ASDH), neurosurgeons frequently encounter bleeding from cortical arteries, which is usually controlled with bipolar coagulation. However, bipolar coagulation is associated with a risk of sacrificing the cortical artery, which may affect the prognosis of neuro...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-018-3634-5
更新日期:2018-10-01 00:00:00
abstract::A 49-year-old woman had a left frontal expanding mass with calcified areas. A craniotomy and resection of the mass were performed. Histological sections showed a mixed tumour: osteochondrosarcoma-glioblastoma multiforme. The absence of previous irradiation and its location, deep in the frontal lobe and apparently unat...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01808532
更新日期:1979-01-01 00:00:00
abstract:BACKGROUND:Paragangliomas are tumors that arise from the paraganglion system, which is a component of the neuroendocrine system. Approximately 10% are located in the extra-adrenal paraganglion system. Paragangliomas of the spine, however, are rare. They usually present as an intradural tumor in the cauda equina. There ...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-009-0362-x
更新日期:2010-03-01 00:00:00
abstract::Fourteen cases of midline vertebro-basilar trunk aneurysms were operated on by four routes of surgical approach: middle fossa anterior transpetrosal approach (ATP), presigmoid transpetrosal approach (PTP), conventional lateral suboccipital approach (LSO) or suboccipital transcondylar approach (STC). There was no morta...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01420302
更新日期:1996-01-01 00:00:00
abstract:BACKGROUND:Eloquent area surgery has become safer with the development of intraoperative neurophysiological monitoring and brain mapping techniques. However, the usefulness of intraoperative electric brain stimulation techniques applied to the management and surgical treatment of cavernous malformations in supratentori...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-018-3644-3
更新日期:2018-10-01 00:00:00
abstract::The aetiology of incomplete adrenergic denervation and reduction in the number and caliber of the cerebral vessels in hydrocephalus is still obscure. Stretching of the blood vessels alone is far from explaining these major vascular changes. Previous studies have shown that increased lipid peroxidation produces toxic e...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01405185
更新日期:1993-01-01 00:00:00
abstract:BACKGROUND:Treatment of complex intracranial aneurysms requires strategic pre-interventional or preoperative planning. In addition to modern three-dimensional (3D) rotational angiography, computed tomography angiography (CTA) or magnetic resonance angiogram (MRA), a solid, tangible 3D model may improve anatomical compr...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-016-2892-3
更新日期:2016-09-01 00:00:00
abstract::A modification of the previous methods of producing cerebral ischaemia in rats (Koizumi et al., Longa et al.), using an intraluminal thread technique, is described. The middle cerebral artery is occluded by introducing a simple 3-0 nylon thread (0.20-0.249 mm in diameter) through the internal carotid artery in the nec...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01403007
更新日期:1991-01-01 00:00:00
abstract::We retrospectively analysed 13 patients (pts.) treated at the University of Tübingen from 1985 to 1993 to evaluate the results of radiation therapy (XRT) given as an adjuvant to totally or subtotally resected meningiomas. The overall survival was 38% at five years with a probability of relapse of 50% at this time. Rec...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF02187764
更新日期:1995-01-01 00:00:00
abstract:BACKGROUND:Within the realm of neurosurgery, petroclival meningiomas are regarded as probably the most difficult tumour to be treated by microsurgery. This is due to the not infrequently large size of the tumours which, although predominantly located in the posterior fossa, may occupy more than one cranial compartment,...
journal_title:Acta neurochirurgica
pub_type: 历史文章,杂志文章
doi:10.1007/s00701-010-0633-6
更新日期:2010-07-01 00:00:00
abstract:BACKGROUND:Microvascular decompression (MVD) for hemifacial spasm (HFS) has been popular, but it may take enough time to master this special operative technique and procedure. This may induce uneven distribution of the number of MVD operations in each institute, possibly resulting in an overall unsatisfactory quality o...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-013-1724-y
更新日期:2013-09-01 00:00:00
abstract:PURPOSE:Complete yet safe resection close to motor areas in medically intractable epilepsy requires functional information. New deficit may occur despite preservation of motor cortex, e.g., through vascular compromise. Here, we explore for the first time the feasibility, safety, and the clinical value of continuous mot...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-010-0675-9
更新日期:2010-08-01 00:00:00
abstract::The authors report on two types of carotid-A(1) junctional aneurysms projecting backwards. In the two A(1)-type examples, the aneurysm originated at the posterior wall of the proximal A(1) joining the carotid termination and could be clipped using an ipsilateral pterional approach. However, in the carotid-type example...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-007-1223-0
更新日期:2007-08-01 00:00:00
abstract:BACKGROUND:Management of asymptomatic meningiomas represents a challenge due to the absence of a solid consensus on which is the best management strategy. There are various known factors predicting meningiomas growth risk. However, the Asian Intracranial Meningioma Scoring System (AIMSS) is the only described score to ...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-019-04056-3
更新日期:2019-11-01 00:00:00
abstract::Recent studies on prognostic variables and the intensive care of head injuries enabled us to select 64 patients and administer a standard treatment protocol to prevent secondary brain injury. All the patients were in coma with a flexor motor pattern as the best response between 6 and 24 hours after the accident and/or...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01413271
更新日期:1985-01-01 00:00:00
abstract::An adjustable telescopic suction tube has been developed for microsurgery. Owing to this innovation, the surgeon can easily set the suction tube to a suitable length by gently pulling the end of the telescopic tube out or in. ...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01401302
更新日期:1992-01-01 00:00:00
abstract:OBJECTIVE:Lately, morphological parameters of the surrounding vasculature aside from aneurysm size, specific for the aneurysm location, e.g., posterior cerebral artery angle for basilar artery tip aneurysms, could be identified to correlate with the risk of rupture. We examined further image-based morphological paramet...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-020-04593-2
更新日期:2020-10-06 00:00:00
abstract::Cell-mediated cytotoxicity (CTX) of meningioma patients towards meningioma cells and fibroblasts was studied in vitro before and after surgery, using the 3H-proline microcytotoxicity test. When incubated with allogeneic target cells before surgery, lymphocytes from three out of seven donors showed a specific destructi...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01808518
更新日期:1979-01-01 00:00:00
abstract:PURPOSE:The present study investigated the incidence of acute rebleeding after successful coil embolization of a ruptured cerebral aneurysm, including clinical outcomes, and possible mechanisms of the events other than coil compaction and/or incomplete embolization. MATERIALS AND METHODS:This study included 591 consec...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-009-0593-x
更新日期:2010-05-01 00:00:00
abstract:BACKGROUND:Hypertrophic olivary degeneration (HOD) is a pathological phenomenon that occurs after injury to the dentato-olivary pathway. Its hallmarks include hypertrophy of the olive with increased T2 signal intensity on magnetic resonance imaging, and it often manifests with palatal tremor and oscillopsia clinically....
journal_title:Acta neurochirurgica
pub_type: 杂志文章,评审
doi:10.1007/s00701-007-1470-0
更新日期:2008-02-01 00:00:00