Abstract:
INTRODUCTION:The aim of this study was to explore the predisposing factors for fracture nonunion after a lateral screw was combined with C2 pedicle/laminar screw for a type II odontoid fracture and hopefully provide references in decision making and surgical planning for spinal surgeons. METHODS:This is a retrospective study. By retrieving the medical records from January 2010 to July 2015 in our hospital, 117 type II odontoid fracture patients were reviewed. According to the occurrence of fracture union at the final follow-up, patients were divided into 2 groups: union and nonunion. To investigate the predisposing factors for fracture nonunion, 3 categorized factors were analyzed statistically: patient characteristics-age, sex, body mass index, preoperative Japanese Orthopaedic Association (JOA) scores, duration, comorbidity, and complicated injuries; surgical variables-surgery time, blood loss, C2 fixation manner, vertebral artery injury, bone source for fusion between the posterior arch of C1 and the laminae and spinous process of C2; radiographic parameters-preoperative and immediate postoperative data of C0-2 curvature, C2-7 curvature, C2-7 sagittal vertical axis, C7 slope, fracture classification, congenital hypoplastic vertebral artery, and the separation and displacement of the odontoid fracture. Other variables including JOA and visual analog scale scores for neck pain, neck stiffness, and patient satisfaction at final follow-up were recorded and compared between the 2 groups. RESULTS:Postoperative fracture nonunion was detected in 76 of 117 patients (65%) at final follow-up. There was no statistically significant difference between the 2 groups in patient characteristics of sex, body mass index, JOA score, comorbidity, and complicated injuries. The mean age at operation was younger in the union group than in the nonunion group, and the mean duration was shorter in the union group than in the nonunion group. There was no difference in surgical variables of surgery time, blood loss, C2 fixation manner, vertebral artery injury, bone source for fusion between the posterior arch of C1 and the laminae and spinous process of C2. There was no difference in radiographic parameters of fracture classification, congenital hypoplastic vertebral artery, preoperative and immediate postoperative C0-2 curvature, C2-7 curvature, C2-7 SVA, and C7 slope. No difference was found in preoperative and immediate postoperative displacement of the odontoid fracture or immediate postoperative separation of the odontoid fracture, while the preoperative separation of the odontoid fracture was shorter in the union group than in the nonunion group. The logistic regression analysis revealed that advanced age (>45 years), long duration (>2 months), and preoperative separation of the odontoid fracture (>4 mm) were independently associated with the postoperative fracture nonunion. There were no differences between the 2 groups in JOA, neck pain, neck stiffness, and patient satisfaction at final follow-up. CONCLUSIONS:Advanced age, long duration, and preoperative separation of odontoid fracture >4 mm are predisposing factors for fracture nonunion after posterior C1 lateral screw combined with C2 pedicle/laminar screw fixation for type II odontoid fracture. Our findings did not demonstrate any evidence of lower functional outcome and patients satisfaction for those patients who had odontoid nonunion.
journal_name
World Neurosurgjournal_title
World neurosurgeryauthors
Wang H,Wang Q,Ma L,Yang D,Ding Wdoi
10.1016/j.wneu.2017.09.198subject
Has Abstractpub_date
2018-01-01 00:00:00pages
e417-e425eissn
1878-8750issn
1878-8769pii
S1878-8750(17)31716-3journal_volume
109pub_type
杂志文章abstract:BACKGROUND:Various radiologic patterns of posterior reversible encephalopathy syndrome (PRES) have been reported. Among them, PRES involving brainstem, thalamus, or deep white matter and lacking parieto-occipital edema is rare. Although PRES in general has a benign course, PRES-related intracranial hemorrhage has been ...
journal_title:World neurosurgery
pub_type: 杂志文章,评审
doi:10.1016/j.wneu.2019.10.196
更新日期:2020-02-01 00:00:00
abstract:OBJECTIVE:To describe longitudinal image changes in supratentorial hemispheric meningiomas based on magnetic resonance imaging after preoperative embolization using calibrated microspheres. METHODS:A total of 14 patients with symptomatic supratentorial meningiomas were included in a prospective, mono-centric, mono-arm...
journal_title:World neurosurgery
pub_type: 杂志文章
doi:10.1016/j.wneu.2018.08.078
更新日期:2018-12-01 00:00:00
abstract:OBJECTIVE:Patients with neurofibromatosis type 2 (NF2) are prone to develop multiple intracranial neoplasms, such as schwannomas of the cranial nerves and meningiomas. The aim of our study was to investigate 1) the median growth rate per year, 2) the growth-free interval, and 3) the growth patterns of NF2-associated in...
journal_title:World neurosurgery
pub_type: 杂志文章
doi:10.1016/j.wneu.2016.10.060
更新日期:2017-02-01 00:00:00
abstract:OBJECTIVE:To use three-dimensional (3D) printed craniocerebral models to guide neurosurgery and design the best operative route preoperatively. METHODS:Computed tomography, magnetic resonance imaging, computed tomography angiography, and functional magnetic resonance images of the patients were collected as needed, re...
journal_title:World neurosurgery
pub_type: 杂志文章
doi:10.1016/j.wneu.2016.04.069
更新日期:2016-07-01 00:00:00
abstract:BACKGROUND:Results from studies investigating the effect of contralateral carotid occlusion (CCO) in patients with carotid artery stenosis undergoing carotid artery endarterectomy (CEA) or carotid artery stenting (CAS) are variable in the literature. We sought to determine whether CEA or CAS is the optimal revasculariz...
journal_title:World neurosurgery
pub_type: 杂志文章,meta分析
doi:10.1016/j.wneu.2018.08.183
更新日期:2018-12-01 00:00:00
abstract:OBJECTIVE:Multiple factors are known to influence outcomes in single-aneurysm subarachnoid hemorrhage, such as Hunt and Hess (H&H) grade, hypertension, etc. We sought to assess the influence of individual risk factors on outcome in surgically managed patients with multiple intracranial aneurysm. METHODS:A retrospectiv...
journal_title:World neurosurgery
pub_type: 杂志文章
doi:10.1016/j.wneu.2016.02.058
更新日期:2016-06-01 00:00:00
abstract:OBJECTIVE:To evaluate effects of holmium:yttrium-aluminum-garnet (Ho:YAG) laser ablation on postoperative low back pain and improving functional status in patients with lumbar disc herniation undergoing transforaminal endoscopic lumbar discectomy (TELD). METHODS:The study enrolled 220 patients with lumbar disc herniat...
journal_title:World neurosurgery
pub_type: 杂志文章
doi:10.1016/j.wneu.2019.03.265
更新日期:2019-07-01 00:00:00
abstract:OBJECTIVE:To evaluate the early and midterm outcomes of surgical correction for severe dystrophic cervical kyphosis in patients with neurofibromatosis type 1 (NF-1) and analyze the pathomechanics and the influence on surgical efficacy of related systemic skeletal dystrophy. METHODS:Ten patients who underwent surgical ...
journal_title:World neurosurgery
pub_type: 杂志文章,多中心研究
doi:10.1016/j.wneu.2019.04.096
更新日期:2019-07-01 00:00:00
abstract:OBJECTIVE:The purpose of this study is to analyze symptomatic middle fossa arachnoid cysts and describe the advantages of the endoscopic technique to manage those cases that should be resolved surgically. METHODS:The physiopathology is described, and the clinical manifestations are analyzed. The diagnostic methodology...
journal_title:World neurosurgery
pub_type: 杂志文章,评审
doi:10.1016/j.wneu.2012.02.012
更新日期:2013-02-01 00:00:00
abstract:BACKGROUND:Laser interstitial thermal therapy (LITT) is an alternative, less-invasive, and, in some circumstances, effective treatment for patients with intracranial pathology including epilepsy and some tumors. For intracranial lesions in eloquent areas, resection by conventional craniotomy proves often to be a challe...
journal_title:World neurosurgery
pub_type: 杂志文章
doi:10.1016/j.wneu.2018.09.074
更新日期:2019-01-01 00:00:00
abstract:BACKGROUND:Reports of tuberculosis involving ≥4 contiguous spinal levels are rare. Surgery is often required in this population for neurological decompression and stabilization. These patients appear to be particularly predisposed to complications that include incomplete recovery of neurological function after decompre...
journal_title:World neurosurgery
pub_type: 杂志文章,评审
doi:10.1016/j.wneu.2016.02.026
更新日期:2016-05-01 00:00:00
abstract:BACKGROUND:Cerebellar cyst formation after surgery is uncommon, and few cases of this condition have been previously reported. These cases had an intraparenchymal cyst in the cerebellar hemisphere that required surgical fenestration of the cyst. We herein present a rare case of a postoperative cerebellar cyst with pseu...
journal_title:World neurosurgery
pub_type: 杂志文章
doi:10.1016/j.wneu.2019.06.197
更新日期:2019-10-01 00:00:00
abstract:OBJECTIVE:We sought to determine the location of kinesthetic cell clusters within the subthalamic nucleus (STN) on magnetic resonance imaging, adjusted for interindividual anatomic variability by employing the medial STN border as a reference point. METHODS:We retrospectively localized microelectrode recording-defined...
journal_title:World neurosurgery
pub_type: 杂志文章
doi:10.1016/j.wneu.2020.04.160
更新日期:2020-07-01 00:00:00
abstract:BACKGROUND:Plaque characteristics play pivotal roles in ischemic events, but stenosis severity does not accurately reflect carotid plaque volume due to expansive remodeling in some patients with low-grade stenosis (LGS). This study aimed to assess the safety, efficacy, and durability of carotid endarterectomy (CEA) for...
journal_title:World neurosurgery
pub_type: 杂志文章
doi:10.1016/j.wneu.2018.11.208
更新日期:2019-03-01 00:00:00
abstract:OBJECTIVE:To evaluate the association between obesity and outcomes after microdiscectomy for lumbar disc herniation. METHODS:The primary outcome measure was change in Oswestry Disability Index (ODI) at 1 year after surgery. Obesity was defined as body mass index (BMI) ≥30. Prospective data were retrieved from the Norw...
journal_title:World neurosurgery
pub_type: 杂志文章,多中心研究
doi:10.1016/j.wneu.2017.11.156
更新日期:2018-02-01 00:00:00
abstract:BACKGROUND:Aberrant internal carotid artery (aICA) is an anatomic anomaly whereby the internal carotid artery courses through the tympanic cavity without separation by bone. Because aICA is rare, there are no definite treatment strategies for aICA and its complications. CASE DESCRIPTION:We report a case of aICA accomp...
journal_title:World neurosurgery
pub_type: 杂志文章
doi:10.1016/j.wneu.2017.03.133
更新日期:2017-06-01 00:00:00
abstract:BACKGROUND:Minimally invasive techniques in spine surgery have continued to advance as robotic technology has evolved over several generations. Although traditional techniques for placing pedicle screws are still widespread in practice, newer technology has increased the reliability of accurately placing instrumentatio...
journal_title:World neurosurgery
pub_type: 杂志文章
doi:10.1016/j.wneu.2020.10.010
更新日期:2021-01-01 00:00:00
abstract:BACKGROUND:Cervical sagittal alignment parameters are essential to plan stages of surgery. The aims of this study were to evaluate the relationship between cervical sagittal alignment parameters and surgical outcomes after anterior cervical arthrodesis; to identify parameters linked to a better outcome; to determine th...
journal_title:World neurosurgery
pub_type: 杂志文章
doi:10.1016/j.wneu.2016.09.110
更新日期:2017-01-01 00:00:00
abstract::We present an image of a patient's skull characterized by dark, irregular discoloration. This was discovered incidentally in a 66-year-old man who underwent craniotomy for resection of a glioblastoma. This image demonstrates cranial black bone disease. This is an abnormal bone pigmentation associated with long-term te...
journal_title:World neurosurgery
pub_type:
doi:10.1016/j.wneu.2019.11.114
更新日期:2020-02-01 00:00:00
abstract:BACKGROUND:Parasagittal meningioma (PSM) has a high incidence of peritumoral edema and unclear pathogenesis. The venous compression theory has been proposed as a pathomechanism; however, this is controversial, and the various edema patterns have not been recognized. OBJECTIVE:We sought to establish the relationship be...
journal_title:World neurosurgery
pub_type: 杂志文章
doi:10.1016/j.wneu.2018.04.092
更新日期:2018-07-01 00:00:00
abstract:BACKGROUND/OBJECTIVE:The safety and efficacy of endovascular treatment of previously clipped aneurysms have not been well-established. We conducted a systematic review of the literature to evaluate the outcomes of endovascular treatment of previously clipped aneurysms. METHODS:A systematic search of MEDLINE, Embase, S...
journal_title:World neurosurgery
pub_type: 杂志文章,meta分析,评审
doi:10.1016/j.wneu.2018.02.103
更新日期:2018-06-01 00:00:00
abstract:BACKGROUND:Flow diversion (FD) has emerged as an effective treatment modality for aneurysms of the posterior communicating artery (PCOM). Whether or not a fetal posterior circulation (FPC) affects PCOM aneurysm occlusion rates after FD remains undetermined. METHODS:We performed a retrospective cohort study in which tr...
journal_title:World neurosurgery
pub_type: 杂志文章,多中心研究
doi:10.1016/j.wneu.2019.04.112
更新日期:2019-07-01 00:00:00
abstract:BACKGROUND:Trigeminal ganglion stimulation can be effective for trigeminal neuralgia. For patients who respond well to neurostimulation delivered percutaneously through the foramen ovale but require extensive revision and removal of instrumentation, a subtemporal approach for stimulation of the trigeminal ganglion is a...
journal_title:World neurosurgery
pub_type: 杂志文章
doi:10.1016/j.wneu.2018.11.034
更新日期:2019-02-01 00:00:00
abstract:OBJECTIVE:The optimal surgical treatment for cavernous malformation-related temporal lobe epilepsy (CRTLE) is still controversial because it frequently involves the hippocampus as an epileptogenic zone. Here we describe our unique surgical strategy of performing hippocampal transection (HT) plus tumor resection for CRT...
journal_title:World neurosurgery
pub_type: 杂志文章
doi:10.1016/j.wneu.2018.07.108
更新日期:2018-11-01 00:00:00
abstract:OBJECTIVE:This report describes 2 techniques for controlling otherwise difficult-to-control hemorrhage from choanoid bony foramina. METHODS:Medical records of 3 patients in whom vigorous and difficult-to-control bleeding from choanoid cranial foramina was successfully halted are reviewed. RESULTS:In 2 patients, vigor...
journal_title:World neurosurgery
pub_type: 杂志文章
doi:10.1016/j.wneu.2017.01.128
更新日期:2017-04-01 00:00:00
abstract:BACKGROUND:Sinus histiocytosis with massive lymphadenopathy, also known as Rosai-Dorfman disease, is a rare condition, classically characterized by painless, massive cervical lymphadenopathy. Histologically, the pathognomonic findings include a dense, mixed inflammatory infiltrate with areas of emperipolesis. Albeit in...
journal_title:World neurosurgery
pub_type: 杂志文章,评审
doi:10.1016/j.wneu.2016.02.121
更新日期:2016-06-01 00:00:00
abstract:OBJECTIVE:Giant sacral schwannomas are rare and difficult to treat. Unexpected neurologic deficits after surgery and tumor recurrence should be considered when surgery is performed. We attempt to remove the tumors via piecemeal total or subtotal excision, leaving parts of the capsule adjacent to nerves to preserve the ...
journal_title:World neurosurgery
pub_type: 杂志文章
doi:10.1016/j.wneu.2019.05.113
更新日期:2019-09-01 00:00:00
abstract:OBJECTIVE:We retrospectively assessed the surgical outcomes of transitional meningioma (TM) in a relatively large series to evaluate the long-term outcomes and propose an appropriate treatment strategy for TM. METHODS:We included 298 patients who had undergone surgery from September 2011 to August 2013. The clinical c...
journal_title:World neurosurgery
pub_type: 杂志文章
doi:10.1016/j.wneu.2019.03.104
更新日期:2019-07-01 00:00:00
abstract:OBJECTIVES:Non-small-cell lung cancer (NSCLC) is one of the most common primary tumor sites among patients with metastatic spinal cord compression (MSCC). This disorder is related to neurologic dysfunction and can reduce the quality of life, but the association between MSCC and death is unclear. The aim of this study w...
journal_title:World neurosurgery
pub_type: 杂志文章
doi:10.1016/j.wneu.2017.09.079
更新日期:2017-12-01 00:00:00
abstract:BACKGROUND:Lost to follow-up (LTF) represents an understudied barrier to effective management of chronic subdural hematoma (cSDH). Understanding the factors associated with LTF after surgical treatment of cSDH could uncover pathways for quality improvement efforts and modify discharge planning. We sought to identify th...
journal_title:World neurosurgery
pub_type: 杂志文章
doi:10.1016/j.wneu.2020.12.128
更新日期:2021-01-04 00:00:00