Abstract:
:Secure fixation of the sacrum is technically challenging. The bone of the dorsal sacral surface is often thin, making hook fixation tenuous. The use of bone screws in the sacral pedicles has gained popularity, but rigidity is often not achieved and screw pullout is common. Solid constructs have been achieved using angled rods to stabilize the ilium, but these methods are technically difficult and time-consuming to perform. A technique is described that achieves rigid sacral fixation by adding a bone screw placed through both cortical surfaces of the ilium. This bone screw is a new type that allows attachment to a rod at variable angles. It permits easy attachment to an appropriately contoured rod, which is affixed to sacral hooks or screws. The resulting configuration of the bone-metal interface creates a tripod for load distribution. Additionally, the splayed geometry of these purchase sites provides a significant biomechanical advantage preventing the instrument from being pulled out. The technique for this fixation method, particularly for patients with complex spinal disorders, is described. Use of this new technique provides significant advantages to the spine surgeon in situations in which substantial sacral fixation integrity is necessary.
journal_name
J Neurosurgjournal_title
Journal of neurosurgeryauthors
Baldwin NG,Benzel ECdoi
10.3171/jns.1994.81.2.0313subject
Has Abstractpub_date
1994-08-01 00:00:00pages
313-6issue
2eissn
0022-3085issn
1933-0693journal_volume
81pub_type
杂志文章abstract::Leukotrienes derive from arachidonic acid metabolism via the lipoxygenase pathway and modulate several cellular events. In the central nervous system, leukotrienes are mainly synthesized in the gray matter and in vascular tissues. Their production is enhanced in ischemic conditions and in experimental subarachnoid hem...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1988.69.4.0488
更新日期:1988-10-01 00:00:00
abstract:OBJECT:Little attention has been given to the functional challenges of the insular approach to the resection of gliomas, despite the potential damage of essential neural networks that underlie the insula. The object of this study is to analyze the subcortical anatomy of the insular region when infiltrated by gliomas, a...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2014.11.JNS141992
更新日期:2015-10-01 00:00:00
abstract:OBJECT:The authors analyzed tumor control rates and complications in patients with superficially located meningiomas after gamma knife surgery (GKS). METHODS:Between 1998 and 2003, GKS was performed in 23 patients with 26 lesions in whom follow-up imaging for 1 year or more was available. The male/female ratio was 1:2...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.2005.102.s_supplement.0255
更新日期:2005-01-01 00:00:00
abstract:OBJECT:It is generally accepted that hemifacial spasm (HFS) is caused by pulsatile vascular compression upon the facial nerve root exit zone. This 2-3 mm area, considered synonymous with the Obersteiner-Redlich zone, is a transition zone (TZ) between central and peripheral axonal myelination that is situated at the ner...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/JNS/2008/109/9/0416
更新日期:2008-09-01 00:00:00
abstract:OBJECT:Glial cell line-derived neurotrophic factor (GDNF) has been shown to confer neuroprotective effects on dopaminergic neurons. The authors investigated the effects of GDNF on 6-hydroxydopamine (6-OHDA)-treated dopaminergic neurons in vitro and in vivo. METHODS:First, the authors examined how 1, 10, or 100 ng/ml o...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.2005.102.1.0080
更新日期:2005-01-01 00:00:00
abstract:OBJECT:The goal of this study was to assess the accuracy of the routine clinical use of transcranial Doppler (TCD) ultrasonography and SPECT in predicting angiographically demonstrated vasospasm. METHODS:Following receipt of institutional review board approval, the authors reviewed the records of patients with subarac...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2008.4.17520
更新日期:2009-01-01 00:00:00
abstract:OBJECT:The purpose of this study was to assess the long-term outcome achieved after repeat Gamma Knife surgery (GKS) for trigeminal neuralgia (TN) using a uniform treatment plan. METHODS:Between 1985 and 2010, 53 patients underwent repeat GKS for refractory TN. In the initial GKS, which involved targeting the root ent...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2010.8.GKS101075
更新日期:2010-12-01 00:00:00
abstract:OBJECT:Intraoperative bleeding often obscures the surgical field and may cause neurological damage. The irrigation fluids used during surgery might affect physiological hemostasis because they modulate the extracellular fluid composition of the bleeding area directly. The authors therefore investigated the influence of...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2009.7.JNS09561
更新日期:2010-04-01 00:00:00
abstract::The purpose of this prospective study was twofold: 1) to determine the sensitivity and specificity of computer-derived density spectral array in detecting analog electroencephalographic (EEG) ischemic pattern changes during carotid artery cross-clamping in patients undergoing carotid endarterectomy; and 2) to assess t...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1993.78.6.0884
更新日期:1993-06-01 00:00:00
abstract:OBJECT:The aims of this study were to construct an animal model of deafferentation of the spinal cord by brachial plexus avulsion and to analyze the effects of subsequent dorsal root entry zone (DREZ) lesions in this model. To this end, the authors measured the clinical and electrophysiological effects of total deaffer...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.2002.97.6.1402
更新日期:2002-12-01 00:00:00
abstract:OBJECT:Sphenopalatine ganglion stimulation activates perivascular vasodilatory nerves in the ipsilateral anterior circle of Willis. This experiment tested whether stimulation of the ganglion could reverse vasospasm and improve cerebral perfusion after subarachnoid hemorrhage (SAH) in monkeys. METHODS:Thirteen cynomolg...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2010.6.JNS091525
更新日期:2011-04-01 00:00:00
abstract::Hemodynamic insufficiency resulting from extracranial vertebral artery stenosis or occlusion is believed to be the major cause of vertebrobasilar transient ischemic attacks. The major difficulties in treating this disorder have been exposure of the vertebral artery distal to the stenosis and the risk of vertebral arte...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1985.62.3.0334
更新日期:1985-03-01 00:00:00
abstract:OBJECT:The aim of this study was to assess the diagnostic yield of imaging tests performed in patients in whom the cause of subarachnoid hemorrhage (SAH) had not been demonstrated on initial angiography. METHODS:By reviewing medical records of 806 patients with SAH who had been admitted during a 6.5-year period, the a...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.2003.98.6.1235
更新日期:2003-06-01 00:00:00
abstract::An anatomical study of the vascularization of the hippocampus was performed on 30 hemispheres. There were a total of 140 arteries supplying the hippocampi, for an average of 4.7 arteries per hemisphere (range three to seven arteries). Based on the origin and caliber of the arteries supplying the hippocampus, the hemis...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1993.79.2.0256
更新日期:1993-08-01 00:00:00
abstract::The benefits of radiosurgery for cavernous malformations are difficult to assess because of the unclear natural history of this vascular lesion, the inability to image malformation vessels, and the lack of an imaging technique that defines "cure." The authors selected for radiosurgery 47 patients who harbored a hemorr...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1995.83.5.0825
更新日期:1995-11-01 00:00:00
abstract:OBJECTIVE:The use of Gamma Knife stereotactic radiosurgery (GKSRS) for the treatment of extensive intracranial metastases has been expanding due to its superior dosimetry and efficacy. However, there remains a dearth of data regarding the dose parameters in actual clinical scenarios. The authors endeavored to calculate...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2020.3.JNS193369
更新日期:2020-05-08 00:00:00
abstract:OBJECT:Extracorporeal shock wave therapy (ESWT) is widely used for the clinical treatment of various human diseases. Recent studies have demonstrated that low-energy ESWT upregulates the expression of vascular endothelial growth factor (VEGF) and promotes angiogenesis and functional recovery in myocardial infarction an...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2014.8.JNS132562
更新日期:2014-12-01 00:00:00
abstract:OBJECT:Cerebrospinal fluid leaks may occur as a result of trauma or following surgery, and occasionally may also be spontaneous. Leakage of CSF from the lateral sphenoid recess is rare and challenging to treat. The authors present their experience with repairs of 10 CSF leaks that were confined to the lateral sphenoid ...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2009.7.JNS09306
更新日期:2010-02-01 00:00:00
abstract::A case is reported of a 45-year-old man who developed quadriplegia following a trivial motor-vehicle accident. Investigation including computerized tomography (CT) of the cervical spine revealed a large calcified lesion displacing the spinal cord and nerve roots, which proved to be a tuberculoma. The case is unusual i...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1984.60.1.0200
更新日期:1984-01-01 00:00:00
abstract::The outcome following decompressive laminectomy and spinal irradiation has been evaluated in 104 consecutive patients with epidural metastatic neoplasia, using broad criteria for successful outcome. Of patients so treated, 33% were benefited, while 23% became worse. Both tumor histology and the preoperative neurologic...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1980.52.1.0047
更新日期:1980-01-01 00:00:00
abstract::This Phase III trial tested the efficacy and safety of intra-arterial 1,3-bis(2-chloroethyl)-1-nitrosourea (BCNU) for the treatment of newly resected malignant glioma, comparing intra-arterial BCNU and intravenous BCNU (200 mg/sq m every 8 weeks), each regimen without or with intravenous 5-fluorouracil (1 gm/sq m thre...
journal_title:Journal of neurosurgery
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.3171/jns.1992.76.5.0772
更新日期:1992-05-01 00:00:00
abstract::The present investigation was conducted to examine the effects upon normal lymphocyte activation of the addition of brain-tumor cyst fluid or cerebrospinal fluid (CSF) to an in vitro culture system. It was believed that factors present in these fluids may play a role in local and systemic immunosuppression in brain-tu...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1983.59.5.0790
更新日期:1983-11-01 00:00:00
abstract::Saccular intracranial aneurysms are a common and often fatal lesion. Whereas surgical treatment of these aneurysms continues to be the gold standard of care, certain situations arise for which surgery may not be the best option. In some of these cases, electrolytically detachable coils have been proven to provide outc...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1997.86.4.0724
更新日期:1997-04-01 00:00:00
abstract:OBJECTIVE:MRI scans obtained within 48-72 hours (early postoperative MRI [epMRI]), prior to any postoperative reactive changes, are recommended for the accurate assessment of the extent of resection (EOR) after glioma surgery. Diffusion-weighted imaging (DWI) enables ischemic lesions to be detected and distinguished fr...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2018.3.JNS172516
更新日期:2018-08-10 00:00:00
abstract:OBJECT:Schwannomas occupying the craniocervical junction (CCJ) are rare and usually originate from the jugular foramen, hypoglossal nerves, and C-1 and C-2 nerves. Although they may have different origins, they may share the same symptoms, surgical approaches, and complications. An extension of these lesions along the ...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2010.5.JNS0966
更新日期:2011-05-01 00:00:00
abstract::The authors present an unusual case in which increased intracranial pressure developed because of multiple-suture craniosynostosis and megaloencephaly in a child with a previously undiagnosed lysosomal storage disease, alpha-D-mannosidase deficiency. This 3-year-old boy presented with a history of frequent naps, heada...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1995.82.4.0647
更新日期:1995-04-01 00:00:00
abstract::A rare case of a gas-containing brain abscess due to verified maduromycosis is described. Blackish material over the abscess cavity revealed the fungal elements. The pus from the abscess contained Streptococcus hemolyticus and Klebsiella organisms. ...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1975.42.2.0229
更新日期:1975-02-01 00:00:00
abstract:OBJECT:The purpose of this set of studies is to design a minimally invasive, reproducible stroke model in the gyrencephalic brain. This paper provides information on both surgical technique and methods of quantification of ischemic damage to both gray and white matter in the miniature pig. METHODS:Sixteen male miniatu...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/ped.2006.104.2.123
更新日期:2006-02-01 00:00:00
abstract:OBJECTIVE:The present study was designed to explore the association between facility type (academic center [AC] vs non-AC), facility volume (high-volume facility [HVF] vs low-volume facility [LVF]), and outcomes of glioblastoma (GBM) treatment. METHODS:Based on the National Cancer Database (NCDB), GBM patients were ca...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2018.10.JNS182247
更新日期:2019-02-15 00:00:00
abstract::OBJECTIVEThe purpose of this study was to analyze national trends in adult cranial cases performed by neurological surgery residents as logged into the Accreditation Council for Graduate Medical Education (ACGME) system.METHODSThe ACGME resident case logs were retrospectively reviewed for the years 2009-2017. In these...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2018.2.JNS172734
更新日期:2018-07-01 00:00:00