Abstract:
:Although they are excellent clinical tools, Caspar anterior cervical plates have not been studied closely with regard to their mechanisms of failure. As more extensive operations are contemplated on older, sicker patients, it is imperative to know when a plating system might be prone to failure and what the mechanism of that failure might be. Therefore, the authors reviewed 49 patients undergoing Caspar plate placement in whom sufficient radiographs were obtained to determine if the fate of the hardware was related to the patient's age, type of operation, and the length of construct. Eleven of 49 patients suffered hardware failure, defined as any amount of screw backout or breakage, plate pullout, or pseudarthrosis. Four patients underwent hardware removal; one underwent posterior fusion for pseudarthrosis. Only two required treatment in a halo brace. There was an eventual fusion rate of 100%, including one fibrous union, and one of the patients who underwent repeat surgery was lost to follow-up review. No graft extrusions or new neurological deficits were incurred as a result of hardware failure. Plate length predicted plate failure in a statistically significant manner. Increasing age and reoperation correlated with plate failure but were not statistically significant in this small number of patients. Telescoping of the bone graft and vertebral bodies, with concomitant migration of the plate and slippage of the screws, was common. However, telescoping was more profound in the group in which the plates failed. The authors conclude that Caspar plate failures are more likely to occur in the elderly and in patients who need longer constructs. Bone fusion can be expected even when the hardware loosens.
journal_name
J Neurosurgjournal_title
Journal of neurosurgeryauthors
Paramore CG,Dickman CA,Sonntag VKdoi
10.3171/jns.1996.84.6.0957subject
Has Abstractpub_date
1996-06-01 00:00:00pages
957-61issue
6eissn
0022-3085issn
1933-0693journal_volume
84pub_type
杂志文章abstract:OBJECT:Over the past few decades, various authors have performed open or stereotactic trigeminal nucleotractotomy for the treatment of neuropathic facial pain resistant to medical treatment. Stereotactic procedures can be performed percutaneously under local anesthesia, allowing intraoperative neurological examination ...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2011.8.JNS11618
更新日期:2012-02-01 00:00:00
abstract::The case of a 30-year-old woman with Chiari I malformation and a cervicothoracic syrinx is presented. The patient was followed clinically over a 2 1/2-year period. Spontaneous and complete resolution of the syrinx, as documented by serial magnetic resonance studies, was accompanied by only a minimal change in objectiv...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1991.74.2.0283
更新日期:1991-02-01 00:00:00
abstract::A case is presented of tentorial dural arteriovenous malformation (AVM) associated with visual hallucinations and quadrant hemianopsia. Computerized tomography (CT) and magnetic resonance imaging showed an ischemic region, mainly affecting the white matter of the right occipital lobe, that was defined as an area of in...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1994.80.3.0552
更新日期:1994-03-01 00:00:00
abstract::Surgical sacrifice of the carotid artery is a frequently anticipated event during the treatment of certain aneurysms and tumors. The ability to predict tolerance to carotid artery occlusion is therefore of benefit when planning procedures in which the carotid artery is at risk. A trial of carotid artery occlusion usin...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1994.81.1.0015
更新日期:1994-07-01 00:00:00
abstract::Intracranial arteriovenous malformations (AVM's) have been classified as pure pial, pure dural, and mixed pial and dural. Dural AVM's are relatively uncommon, with 377 cases documented up to 1990. These lesions were believed to be situated within the walls of the sinuses, but during the last decade researchers discove...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1994.81.4.0620
更新日期:1994-10-01 00:00:00
abstract::A computer-based system has been developed for the integration and display of computerized tomography (CT) image data in the operating microscope in the correct perspective without requiring a stereotaxic frame. Spatial registration of the CT image data is accomplished by determination of the position of the operating...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1986.65.4.0545
更新日期:1986-10-01 00:00:00
abstract::OBJECTIVE Although reoperation and readmission have been used as quality metrics, there are limited data evaluating the rate of, reasons for, and predictors of reoperation and readmission after microsurgical clipping of unruptured aneurysms. METHODS Adult patients who underwent craniotomy for clipping of an unruptured...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2016.10.JNS161810
更新日期:2018-03-01 00:00:00
abstract::Myositis ossificans (MO) is a disorder characterized by the intramuscular proliferation of fibroblasts and osteoblasts, with subsequent deposition of bone and cartilage. A typical clinical presentation involves traumatic injury to a young adult, usually localized to the thigh, buttock, or upper arm, with resultant MO ...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.2001.95.3.0525
更新日期:2001-09-01 00:00:00
abstract::A retrospective series of 12,478 patients with breast cancer included 2467 patients with spinal metastases. Local treatment was not necessary in 688 patients. Neurological dificit did not develop in 1735 patients who underwent radiotherapy. Forty-four patients developed myelopathy due to spinal cord compression as dem...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1977.47.5.0653
更新日期:1977-11-01 00:00:00
abstract::OBJECTIVE Treatment of wide-necked intracranial aneurysms is associated with higher recanalization and complication rates; however, the most commonly used methods are not specifically designed to work in bifurcation lesions. To address these issues, the authors describe the evolution in the design and use of the eCLIP...
journal_title:Journal of neurosurgery
pub_type: 杂志文章,多中心研究
doi:10.3171/2016.10.JNS161731
更新日期:2018-02-01 00:00:00
abstract:OBJECT:The literature on abdominal and general surgery-related complications following anterior lumbar interbody fusion (ALIF) is scant. In this retrospective review of 60 patients in whom ALIF was performed at their institutions between 1996 and 1998, the authors detail the associated complications and their correlati...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/spi.1999.91.1.0060
更新日期:1999-07-01 00:00:00
abstract:OBJECT:Pituitary adenomas are usually benign tumors; however, some behave aggressively and metastasize. Until now, no specific marker of aggressive behavior or malignancy has been found. The polysialylated neural cell adhesion molecule (NCAM), which is highly expressed in embryonic tissues such as the brain and pituita...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.2003.98.5.1084
更新日期:2003-05-01 00:00:00
abstract:OBJECT:The goal of this study was to determine whether the late neuromagnetic field elicited by simple speech sounds, which is detected by magnetoencephalography, may be used to estimate hemispheric dominance for language and to guide or constrain the intraoperative search for essential language sites. If sufficiently ...
journal_title:Journal of neurosurgery
pub_type: 临床试验,杂志文章
doi:10.3171/jns.2001.94.3.0445
更新日期:2001-03-01 00:00:00
abstract::Acute cerebellar hemorrhages, treated medically with subsequent complete recovery, have been designated "benign cerebellar hemorrhages." Ordinarily, acute cerebellar hemorrhage does require early surgical intervention and reported surgical mortality is relatively low (17%) in awake patients with this lesion. Clinical ...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1979.50.3.0374
更新日期:1979-03-01 00:00:00
abstract:OBJECTIVE:Herein, the authors report their experience with intraoperative stimulation mapping to locate the descending subcortical motor pathways in patients undergoing surgery for hemispheric gliomas within or adjacent to the rolandic cortex, with particular description of the morbidity and functional outcomes associa...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2018.3.JNS172494
更新日期:2018-08-17 00:00:00
abstract::Experimental models of meningeal gliomatosis (MG) have been produced by intracisternal inoculation of rat C6 and 9L glioma cells into Wistar and Fischer 344 rats, respectively. Tumor growth was steady and rapid in both MG models when more than 10(6) tumor cells were implanted. The median survival time of the rats inoc...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1986.65.4.0503
更新日期:1986-10-01 00:00:00
abstract::Somatosensory evoked response from the cervical skin surface over the spine (the cervical SER) was recorded, and compared with the cord dorsum potential (CDP) simultaneously recorded from the posterior epidural space at the same segment. The cervical SER evoked by segmental nerve stimulation consisted of an initially ...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1978.48.6.0980
更新日期:1978-06-01 00:00:00
abstract::Spontaneous intracranial hypotension due to a cerebrospinal fluid (CSF) leak in the spine is an important cause of new, daily persistent headaches. Most patients respond well to conservative treatments including epidural blood patching. Limited options for effective treatment are available for patients in whom these t...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.2004.100.6.1098
更新日期:2004-06-01 00:00:00
abstract:OBJECT:High-frequency stimulation (HFS) delivered through implanted electrodes in the subthalamic nucleus (STN) has become an established treatment for Parkinson disease (PD). The precise mechanism of action of deep brain stimulation (DBS) in the STN is unknown, however. In the present study, the authors tested the hyp...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.2004.101.3.0511
更新日期:2004-09-01 00:00:00
abstract::The authors investigated the outcome of stereotactic biopsy and radiotherapy in 35 consecutive adult patients with nonanaplastic, nonpilocytic astrocytomas who were diagnosed between 1982 and 1992. The median patient age at presentation was 32 years. All received fractionated external-beam radiation therapy (median do...
journal_title:Journal of neurosurgery
pub_type: 临床试验,杂志文章
doi:10.3171/jns.1995.82.4.0523
更新日期:1995-04-01 00:00:00
abstract:OBJECTIVE:Some adult patients with moyamoya disease (MMD) undergoing revascularization surgery show an improvement or decline in cognition postoperatively. Revascularization surgery for ischemic MMD augments cerebral blood flow (CBF) and improves cerebral oxygen metabolism. However, cerebral hyperperfusion, which is a ...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2018.7.JNS18149
更新日期:2018-12-14 00:00:00
abstract:OBJECTIVE:Both endovascular coiling and the Pipeline embolization device (PED) have been shown to be safe and clinically effective for treatment of small (< 10 mm) aneurysms. The authors conducted a comparative effectiveness analysis to compare the utility of these treatment methods in terms of health benefits. METHOD...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2018.8.JNS181080
更新日期:2019-01-11 00:00:00
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
更新日期:2006-11-01 00:00:00
abstract::Transarterial embolization of direct carotid-cavernous fistulas (CCFs) using detachable balloons is the best initial option for occlusion of the fistula and preservation of the internal carotid artery. However, the long-term safety and efficacy of this treatment is unknown. The authors reviewed the long-term outcome o...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1996.84.3.0400
更新日期:1996-03-01 00:00:00
abstract:OBJECT:The authors conducted a study to examine the detailed anatomy of the denticulate ligaments and to assess their classic role in spinal cord stability within the spinal canal. METHODS:Detailed observation of the denticulate ligaments in 12 adult cadavers was performed. Stress was applied in all major planes to di...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/spi.2001.94.2.0271
更新日期:2001-04-01 00:00:00
abstract:OBJECT:The authors analyzed the effects of socioeconomic status (SES) and geographic variations on survival rates for adults and children with glioma, studying the data of 30,489 adults and 2940 children from the Cancer Registry in England and Wales. METHODS:The median survival time and crude survival rates for eight ...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/ped.2006.105.4.297
更新日期:2006-10-01 00:00:00
abstract::A 54-year-old man experienced a right occipital headache accompanied by a roaring sound, nausea, vomiting, right facial weakness, and stiff neck. Vertebral angiography revealed an aneurysm of the right anterior inferior cerebellar artery (AICA) at the internal acoustic meatus which was later excised with favorable res...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1978.48.3.0455
更新日期:1978-03-01 00:00:00
abstract:OBJECT:Inflammatory responses and oxygen free radicals have increasingly been implicated in the development of ischemic brain injury. In some cases, an attenuation of inflammation or free-radical injury can provide tissue protection. Diphosphoryl lipid A (DPL) is a detoxified derivative of a lipopolysaccharide (endotox...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.2000.92.3.0435
更新日期:2000-03-01 00:00:00
abstract::Lower-extremity pain and paresthesia have multiple origins. Early recognition of the symptoms of peripheral nerve entrapment leads to timely treatment and avoids the cost of unnecessary studies. The authors report on a case of superficial peroneal nerve syndrome resulting from nerve herniation through a fascial defect...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.2006.104.5.820
更新日期:2006-05-01 00:00:00
abstract::The presence of pneumocephalus in a patient without a history of undergoing intracranial or intrathecal procedures is a significant radiographic finding that portends a violation of the dural barrier or the presence of infection. The authors report a case of iatrogenic pneumocephalus that confounded the evaluation of ...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1999.91.5.0878
更新日期:1999-11-01 00:00:00