Increased pedicle screw pullout strength with vertebroplasty augmentation in osteoporotic spines.

Abstract:

OBJECT:The authors conducted a biomechanical study to evaluate pedicle screw pullout strength in osteoporotic cadaveric spines. Nonaugmented hemivertebrae were compared with pressurized polymethylmethacrylate (PMMA)-augmented hemivertebrae. METHODS:Six formalin-fixed cadaveric thoracolumbar spines at least two standard deviations below the mean bone mineral density (BMD) for age were obtained. Radiographic and BMD studies were correlated to grades I, II, and III osteoporosis according to the Jekei scale. Each of the 21 vertebrae underwent fluoroscopic placement of 6-mm transpedicular screws with each hemivertebra serving as the control for the contralateral PMMA-augmented hemivertebra. Pedicle screws were then evaluated for biomechanical axial pullout resistance. Augmented hemivertebrae axial pullout forces were increased (p = 0.0005). The mean increase in pullout force was 181% for Grade I, 206% for Grade II, and 213% for Grade III osteoporotic spines. Augmented Grade I osteoporotic spines demonstrated axial pullout forces near those levels reported in the literature for nonosteoporotic specimens. Augmented Grade II osteoporotic specimens demonstrated increases to levels found in nonaugmented vertebrae with low-normal BMD. Augmented Grade III osteoporotic specimens had increases to levels equal to those found in nonaugmented Grade I vertebrae. CONCLUSIONS:Augmentation of osteoporotic vertebrae in PMMA-assisted vertebroplasty can significantly increase pedicle screw pullout forces to levels exceeding the strength of cortical bone. The maximum attainable force appears to be twice the pullout force of the nonaugmented pedicle screw for each osteoporotic grade.

journal_name

J Neurosurg

journal_title

Journal of neurosurgery

authors

Sarzier JS,Evans AJ,Cahill DW

doi

10.3171/spi.2002.96.3.0309

subject

Has Abstract

pub_date

2002-04-01 00:00:00

pages

309-12

issue

3 Suppl

eissn

0022-3085

issn

1933-0693

journal_volume

96

pub_type

杂志文章
  • Painful supernumerary phantom arm following motor cortex stimulation for central poststroke pain. Case report.

    abstract::In this report, the authors describe a case in which the patient began to experience a supernumerary phantom arm after she received motor cortex stimulation for central pain. The patient had a history of right thalamocapsular stroke. It is speculated that the motor cortex activation triggered a response in the patient...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/jns.1999.91.1.0121

    authors: Canavero S,Bonicalzi V,Castellano G,Perozzo P,Massa-Micon B

    更新日期:1999-07-01 00:00:00

  • Computerized tomography and prognosis in early aneurysm surgery.

    abstract::A study of computerized tomography (CT) scans was performed in a consecutive series of 100 patients with ruptured saccular cerebral aneurysms who were admitted, diagnosed, and operated on within 72 hours after subarachnoid hemorrhage (SAH) and treated with calcium antagonists. The aneurysms were in the anterior portio...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/jns.1986.65.2.0217

    authors: Auer LM,Schneider GH,Auer T

    更新日期:1986-08-01 00:00:00

  • Transsphenoidal approach to infrasellar tumors involving the cavernous sinus.

    abstract::The authors review their 2-year experience with a rhinoseptal transsphenoidal approach to skull-base tumors of various pathologies involving both the sphenoid and cavernous sinuses. Eight patients with cranial nerve palsies attributable to compression of the contents of the cavernous sinus and/or optic canal are inclu...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/jns.1990.73.4.0513

    authors: Hashimoto N,Kikuchi H

    更新日期:1990-10-01 00:00:00

  • Reduction of cellular energy requirements. Screening for agents that may protect against CNS ischemia.

    abstract::Protection of the brain and spinal cord against ischemia is a goal of vast clinical importance. One approach to this objective is to reduce the tissue's functional activity in order to preserve energy for the metabolic processes that are essential to viability. Experiments to explore ways of reducing function-related ...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/jns.1988.69.4.0568

    authors: Zager EL,Ames A 3rd

    更新日期:1988-10-01 00:00:00

  • Split facial nerve course in vestibular schwannomas.

    abstract:OBJECT:The facial nerve in vestibular schwannomas (VSs) is located on the ventral tumor surface in more than 90% of cases; other courses are rare. A split facial nerve course with two distinct bundles has thus far been described exclusively for medial extrameatal tumors. METHODS:Between 1996 and 2005, 16 consecutive c...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/jns.2006.105.5.698

    authors: Strauss C,Prell J,Rampp S,Romstöck J

    更新日期:2006-11-01 00:00:00

  • Hemiparesis caused by vertebral artery compression of the medulla oblongata. Case report.

    abstract::The case is reported of a patient with progressive left hemiparesis due to vascular compression of the medulla oblongata. Metrizamide computerized tomography cisternography revealed that the left vertebral artery was compressing and distorting the left lateral surface of the medulla. Compression was surgically relieve...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/jns.1985.62.3.0425

    authors: Kim P,Ishijima B,Takahashi H,Shimizu H,Yokochi M

    更新日期:1985-03-01 00:00:00

  • Prognostic factors in the persistence of posttraumatic epilepsy after penetrating head injuries sustained in war.

    abstract:OBJECT:The goal of this paper was to investigate the long-term outcome and the possible prognostic factors that might have influenced the persistence of posttraumatic epilepsy after penetrating head injuries sustained during the Iraq-Iran war (1980-1988). METHODS:In this retrospective study, the authors evaluated 189 ...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/2008.4.17519

    authors: Eftekhar B,Sahraian MA,Nouralishahi B,Khaji A,Vahabi Z,Ghodsi M,Araghizadeh H,Soroush MR,Esmaeili SK,Masoumi M

    更新日期:2009-02-01 00:00:00

  • Transsphenoidal treatment of non-neoplastic intrasellar cysts. A report of 38 cases.

    abstract::Thirty-eight patients underwent transsphenoidal microsurgical treatment of non-neoplastic intrasellar cysts: 36 had cyst drainage and biopsy of the cyst wall, and in two the cyst was totally removed. Surgical morbidity was 8%. The mean follow-up time was 46.3 months; 100% patient follow-up evaluation was achieved. Six...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/jns.1984.60.1.0008

    authors: Baskin DS,Wilson CB

    更新日期:1984-01-01 00:00:00

  • Persistent primitive trigeminal artery-cavernous sinus fistula with intracerebral hemorrhage: endovascular treatment using detachable coils in a transarterial double-catheter technique. Case report and review of the literature.

    abstract::Intracerebral hemorrhage occurred in this 61-year-old woman with preexisting diplopia and proptosis. Results of angiography demonstrated a persistent primitive trigeminal artery (PPTA)-cavernous sinus fistula with cortical venous reflux. Two microcatheters were introduced transarterially through the PPTA into the two ...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/jns.2004.101.4.0697

    authors: Tokunaga K,Sugiu K,Kameda M,Sakai K,Terasaka K,Higashi T,Date I

    更新日期:2004-10-01 00:00:00

  • Assessment of necrotic core with intraplaque hemorrhage in atherosclerotic carotid artery plaque by MR imaging with 3D gradient-echo sequence in patients with high-grade stenosis. Clinical article.

    abstract:OBJECT:The aim of this study was to assess the histopathological differences between advanced atherosclerotic carotid artery (CA) plaques with signal hyperintensity on T1-weighted MR images and those without, focusing on necrotic core size and intraplaque hemorrhage (IPH). METHODS:Thirty-five patients scheduled for ca...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/2010.3.JNS091057

    authors: Hishikawa T,Iihara K,Yamada N,Ishibashi-Ueda H,Miyamoto S

    更新日期:2010-10-01 00:00:00

  • Stereotaxic reconstruction of the aqueduct of Sylvius.

    abstract::A stereotaxic technique has been developed to cannulate the cerebral aqueduct in patients with hydrocephalus resulting from occlusion of the aqueduct of Sylvius. Precise placement of a 15- to 20-mm long radiopaque prosthesis between the third and fourth ventricles can reestablish the normal cerebrospinal fluid (CSF) p...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/jns.1981.55.5.0800

    authors: Backlund EO,Grepe A,Lunsford D

    更新日期:1981-11-01 00:00:00

  • Clinical tolerance of corticospinal tracts in convection-enhanced delivery to the brainstem.

    abstract:OBJECTIVE:Convection-enhanced delivery (CED) has been explored as a therapeutic strategy for diffuse intrinsic pontine glioma (DIPG). Variables that may affect tolerance include infusate volume, infusion rate, catheter trajectory, and target position. Supratentorial approaches for catheter placement and infusate distri...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/2018.6.JNS18854

    authors: Morgenstern PF,Zhou Z,Wembacher-Schröder E,Cina V,Tsiouris AJ,Souweidane MM

    更新日期:2018-12-21 00:00:00

  • Complete asymptomatic thrombosis and resorption of a congenital giant intracranial aneurysm.

    abstract::Intracranial aneurysms in infants are rare, but are associated with a high risk of rupture and subarachnoid hemorrhage. The authors report a case of an incidentally diagnosed, probably congenital, asymptomatic giant aneurysm of the posterior communicating artery in a 9-month-old girl, which completely thrombosed follo...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/jns.2002.97.1.0184

    authors: Krapf H,Schöning M,Petersen D,Küker W

    更新日期:2002-07-01 00:00:00

  • Early diffusion-weighted MRI lesions after treatment of unruptured intracranial aneurysms: a prospective study.

    abstract::OBJECTIVE Diffusion-weighted MRI was used to assess periprocedural lesion load after repair of unruptured intracranial aneurysms (UIA) by microsurgical clipping (MC) and endovascular coiling (EC). METHODS Patients with UIA were assigned to undergo MC or EC according to interdisciplinary consensus and underwent diffusi...

    journal_title:Journal of neurosurgery

    pub_type: 临床试验,杂志文章

    doi:10.3171/2016.2.JNS152456

    authors: Platz J,Wagner M,Güresir E,You SJ,Konczalla J,de Rochemont RD,Berkefeld J,Seifert V

    更新日期:2017-04-01 00:00:00

  • Thalamic syndrome caused by unruptured cerebral aneurysm. Case report.

    abstract::A case is reported of a 63-year-old woman with thalamic syndrome as the presenting feature of an unruptured cerebral aneurysm. Unruptured aneurysm is a rare cause of thalamic syndrome; the possible mechanisms of production of the sensory disturbance are discussed. ...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/jns.1995.82.2.0291

    authors: Stoodley MA,Warren JD,Oatey PE

    更新日期:1995-02-01 00:00:00

  • The role of extracranial carotid abnormalities in the genesis of cerebral aneurysms.

    abstract::The incidence of extracranial internal carotid artery (ICA) abnormalities, namely kinks, coils, and stenoses, was evaluated in a consecutive unselected series of 76 cases of single supratentorial saccular aneurysms submitted to bilateral carotid angiography. These patients were compared with a control group of 120 pat...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/jns.1981.55.5.0693

    authors: Spallone A,Cantore G

    更新日期:1981-11-01 00:00:00

  • Long-term outcomes of wide-necked intracranial bifurcation aneurysms treated with T-stent-assisted coiling.

    abstract:OBJECTIVE:The endovascular treatment of complex bifurcation aneurysms possessing a neck that incorporates multiple side branches remains a surgical challenge. Double-stent-assisted coiling techniques, such as those with stents in an X and Y configuration, enable the endovascular treatment of wide-necked complex intracr...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/2019.9.JNS191733

    authors: Aydin K,Stracke CP,Barburoglu M,Yamac E,Berdikhojayev M,Sencer S,Chapot R

    更新日期:2019-12-06 00:00:00

  • Degenerative lumbar spondylolisthesis-induced radicular compression: nonfusion-related decompression in selected patients without hypermobility on flexion-extension radiographs.

    abstract:OBJECT:The authors conducted a study to determine the results of decompressive surgery without fusion in selected patients who presented with radicular compression syndromes caused by degenerative lumbar spondylolisthesis and in whom there was no evidence of hypermobility on flexion-extension radiographs. METHODS:The ...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/spi.2002.97.3.0281

    authors: Kristof RA,Aliashkevich AF,Schuster M,Meyer B,Urbach H,Schramm J

    更新日期:2002-10-01 00:00:00

  • Cysts of the atlantoaxial joint: excellent long-term outcome after posterolateral surgical decompression. Report of two cases.

    abstract::Articular cysts of the atlantoaxial joint are infrequently described and probably an underreported cause of upper cervical spinal cord compression. The authors report on two patients with cysts located posteriorly of the dens in whom a C-1 and partial C-2 hemilaminectomy with subtotal resection of the cyst provided ad...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/spi.2001.95.1.0111

    authors: Zorzon M,Skrap M,Diodato S,Nasuelli D,Lucci B

    更新日期:2001-07-01 00:00:00

  • Structural heterogeneity within the axis: the main cause in the etiology of dens fractures. A histomorphometric analysis of 37 normal and osteoporotic autopsy cases.

    abstract::Fractures of the odontoid process are potentially serious injuries; Type II and III fractures, as described by Anderson and D'Alonzo, are seen in the emergency room especially in young adolescents and individuals over 60 years of age. The etiology of these fractures is still controversial. Malunion and nonunion in bot...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/jns.1995.83.2.0330

    authors: Amling M,Pösl M,Wening VJ,Ritzel H,Hahn M,Delling G

    更新日期:1995-08-01 00:00:00

  • Inverse correlation of epidermal growth factor receptor messenger RNA induction and suppression of anchorage-independent growth by OSI-774, an epidermal growth factor receptor tyrosine kinase inhibitor, in glioblastoma multiforme cell lines.

    abstract:OBJECT:Quantitative and qualitative alterations in the epidermal growth factor receptor (EGFR) commonly occur in many cancers in humans, including malignant gliomas. The aim of the current study was to evaluate molecular and cellular effects of OSI-774, a novel EGFR tyrosine kinase inhibitor, on nine glioblastoma multi...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/jns.2004.100.3.0523

    authors: Halatsch ME,Gehrke EE,Vougioukas VI,Bötefür IC,A-Borhani F,Efferth T,Gebhart E,Domhof S,Schmidt U,Buchfelder M

    更新日期:2004-03-01 00:00:00

  • Long-term natural history of hemorrhagic moyamoya disease in 42 patients.

    abstract:OBJECT:The purpose of this study was to delineate the long-term natural history of hemorrhagic moyamoya disease (MMD). METHODS:A retrospective review was conducted among 42 patients suffering from hemorrhagic MMD who had been treated conservatively without bypass surgery. The group included four patients who had under...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/jns.2000.93.6.0976

    authors: Kobayashi E,Saeki N,Oishi H,Hirai S,Yamaura A

    更新日期:2000-12-01 00:00:00

  • Tectal plate lesions in children.

    abstract:OBJECT:The authors characterized the clinical course of tectal plate lesions in a group of pediatric patients to identify the prognostic factors at presentation that predict progression, in an attempt to differentiate tectal hamartomas from tumors. METHODS:A retrospective review was conducted of the management of tect...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/ped.2006.104.6.369

    authors: Ternier J,Wray A,Puget S,Bodaert N,Zerah M,Sainte-Rose C

    更新日期:2006-06-01 00:00:00

  • Effect of phenytoin and corticosteroids on seizures and lipid peroxidation in experimental posttraumatic epilepsy.

    abstract::Head trauma, intracerebral hematoma formation, and hemorrhagic cerebral infarction cause extravasation of the intravascular contents, red blood cell (RBC) hemolysis, hemosiderin deposition within the neuropil, and an increased incidence of epilepsy. Reports conflict regarding the efficacy of the administration of prop...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/jns.1984.60.3.0467

    authors: Willmore LJ,Triggs WJ

    更新日期:1984-03-01 00:00:00

  • Decreasing ventricular infections through the use of a ventriculostomy placement bundle: experience at a single institution.

    abstract:OBJECT:Ventricular infection after ventriculostomy placement carries a high mortality rate. Responding to ventriculostomy infection rates, a multidisciplinary performance improvement team was formed, a comprehensive protocol for ventriculostomy placement was developed, and the efficacy was evaluated. METHODS:A best-pr...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/2012.11.JNS121336

    authors: Kubilay Z,Amini S,Fauerbach LL,Archibald L,Friedman WA,Layon AJ

    更新日期:2013-03-01 00:00:00

  • Effect of nimodipine on the outcome of patients after aneurysmal subarachnoid hemorrhage and surgery.

    abstract::The effect of intravenous nimodipine on the incidence of mortality and delayed ischemic neurological deficits of patients after aneurysmal subarachnoid hemorrhage (SAH) and surgery was studied in a prospective double-blind placebo-controlled trial. Upon admission, all of the patients were in Grades I to III according ...

    journal_title:Journal of neurosurgery

    pub_type: 临床试验,杂志文章

    doi:10.3171/jns.1988.69.5.0683

    authors: Ohman J,Heiskanen O

    更新日期:1988-11-01 00:00:00

  • Long-term outcome after resection of brainstem hemangioblastomas in von Hippel-Lindau disease.

    abstract:OBJECT:Brainstem hemangioblastomas are frequently encountered in patients with von Hippel-Lindau (VHL) disease. These tumors can cause significant morbidity, and their optimal management has not been defined. To better define the outcome and management of these tumors, the authors analyzed the long-term results in pati...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/2010.9.JNS10839

    authors: Wind JJ,Bakhtian KD,Sweet JA,Mehta GU,Thawani JP,Asthagiri AR,Oldfield EH,Lonser RR

    更新日期:2011-05-01 00:00:00

  • Effects of intracranial meningioma location, size, and surgery on neurocognitive functions: a 3-year prospective study.

    abstract::OBJECT Current recommendations stress the need for cognitive parameters to be integrated in the evaluation of outcomes for intracranial meningioma surgery. The aim of this prospective study was to examine neurocognitive function in meningioma patients pre- and postoperatively. METHODS Patients with skull base (anterio...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/2015.6.JNS1549

    authors: Liouta E,Koutsarnakis C,Liakos F,Stranjalis G

    更新日期:2016-06-01 00:00:00

  • Injury outcomes in children following automobile, motorcycle, and all-terrain vehicle accidents: an institutional review.

    abstract:OBJECT:The authors performed an analysis of retrospectively obtained data to compare the outcomes of pediatric patients admitted to their institution for traumatic injuries resulting from car, motorcycle, and all-terrain vehicle (ATV) accidents. METHODS:The authors conducted a retrospective review of Columbus Children...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/ped.2006.105.3.182

    authors: Miller B,Baig M,Hayes J,Elton S

    更新日期:2006-09-01 00:00:00

  • A comparison of 3 radiographic scales for the prediction of delayed ischemia and prognosis following subarachnoid hemorrhage.

    abstract:OBJECT:Delayed cerebral ischemia is a major cause of morbidity and death following aneurysmal subarachnoid hemorrhage and requires timely intervention for a successful outcome to be achieved. In this study the investigators compared the commonly used Fisher scale with 2 newer radiographic scales for the prediction of v...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/JNS/2008/109/8/0199

    authors: Kramer AH,Hehir M,Nathan B,Gress D,Dumont AS,Kassell NF,Bleck TP

    更新日期:2008-08-01 00:00:00