Abstract:
STUDY DESIGN:In vitro biomechanical study to evaluate the stability of different types of instrumentation in the lumbar spine following corpectomy in relation to bone mineral density (BMD). OBJECTIVES:To investigate the relation between the stability of a spinal instrumentation and BMD. To determine a threshold value of BMD allowing a single ventral instrumentation following corpectomy in the lumbar spine. SUMMARY OF BACKGROUND DATA:Some in vitro studies determined the biomechanical properties of different spinal instrumentations in various spinal injury models. To the authors' knowledge, there are no published data available concerning stabilization in relation to BMD. A guideline for the treatment of a corpectomy depending on BMD would be helpful in order to choose the appropriate surgical method. METHODS:Twenty-four fresh frozen human lumbar cadaveric spine specimens L1-L3 were used for testing of biomechanical properties. Plain radiographs were taken. BMD was determined using quantitative computed tomography (QCT). Testing in a 6 df loading device included native specimens and specimens after corpectomy of L2, restoration of the defect with a titanium cage, and two reconstruction situations: single ventral and additional dorsal instrumentation. Load-displacement curves and range of motion parameters were recorded and correlated with BMD. RESULTS:A significant (P < 0.05) influence of BMD on range of motion was found. Single ventral instrumentation was critical concerning axial rotation. Combined dorsoventral instrumentation offered sufficient stability. The threshold value for use of single ventral instrumentation is a BMD > or = 0.22 g/cm. CONCLUSIONS:Single ventral instrumentation can provide sufficient stability following corpectomy in the lumbar spine under the condition of a high BMD. Determination of BMD and the use of this guideline provides a valid tool for surgical planning.
journal_name
Spine (Phila Pa 1976)journal_title
Spineauthors
Knöller SM,Meyer G,Eckhardt C,Lill CA,Schneider E,Linke Bdoi
10.1097/01.brs.0000161000.36376.c5keywords:
subject
Has Abstractpub_date
2005-05-01 00:00:00pages
E229-35issue
9eissn
0362-2436issn
1528-1159pii
00007632-200505010-00024journal_volume
30pub_type
杂志文章相关文献
SPINE文献大全abstract:SUMMARY OF BACKGROUND DATA:Although high geographic variation in back surgery rates within the United States have been documented, international comparisons have not been published. METHODS:The authors compared rates of back surgery in eleven developed countries to determine if back surgery rates are higher: 1) in the...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/00007632-199405310-00001
更新日期:1994-06-01 00:00:00
abstract::A systematic approach to low-back pain is presented that relies on the classification of patients according to their symptoms. Rational systems of physiotherapy are proposed for each group and incorporated into an algorithmn. One hundred forty-two patients with mechanical low-back pain have been treated, and their res...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/00007632-198507000-00012
更新日期:1985-07-01 00:00:00
abstract::A 24-year-old man presented with severe low-back pain and paraspinal muscle spasm after exertion. Elevation in temperature, white blood cell count, serum muscle enzymes, and urine myoglobin, as well as computer tomographic evidence of paraspinal muscle edema and necrosis, were present. No etiology could be documented,...
journal_title:Spine
pub_type: 杂志文章
doi:
更新日期:1985-11-01 00:00:00
abstract:STUDY DESIGN:Retrospective review. OBJECTIVE:To evaluate key risk factors for the development of C5 palsy after cervical corpectomy, including resection of the posterior longitudinal ligament (PLL). SUMMARY OF BACKGROUND DATA:Postoperative C5 palsy is a well-known complication after cervical spine surgery. It is unkn...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/BRS.0000000000001806
更新日期:2017-04-01 00:00:00
abstract:STUDY DESIGN:This study compared direct measurements of the distances between the vertebral arteries in the cervical spines of human cadaver specimens with data obtained from axial computed tomography images of these specimens. OBJECTIVE:To determine whether the information obtained from a computed tomography scan can...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/00007632-199609150-00004
更新日期:1996-09-15 00:00:00
abstract:STUDY DESIGN:Prospective observational study. OBJECTIVE:To provide a more accurate estimate of the rate of acute spinous process fractures associated with IPS surgery. SUMMARY OF BACKGROUND DATA:Biomechanical cadaveric studies have suggested adequate spinous process strength to support placement of interspinous proce...
journal_title:Spine
pub_type: 临床试验,杂志文章
doi:10.1097/BRS.0b013e318204066a
更新日期:2011-07-15 00:00:00
abstract:STUDY DESIGN:Vertebral growth plates at different postnatal ages were assessed for active intercellular signaling pathways. OBJECTIVE:To generate a spatial and temporal map of the major signaling pathways active in the postnatal mouse lumbar vertebral growth plate. SUMMARY OF BACKGROUND DATA:The growth of all long bo...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/BRS.0b013e3181f7a3ca
更新日期:2011-06-15 00:00:00
abstract:STUDY DESIGN:Systematic review and meta-analysis. OBJECTIVE:To compare the efficacy of the use of either bisphosphonates or teriparatide on radiographic and functional outcomes of patients that had thoracolumbar spinal fusion. SUMMARY OF BACKGROUND DATA:Controversy exists as to whether bisphosphonates interfere with ...
journal_title:Spine
pub_type: 杂志文章,meta分析,评审
doi:10.1097/BRS.0000000000002608
更新日期:2018-09-01 00:00:00
abstract:STUDY DESIGN:A retrospective study of 1,090 patients undergoing corrective spinal deformity surgery for scoliosis (n = 920), kyphosis (n = 77), or a combination of the two (n = 93) at one institution. OBJECTIVES:To ascertain the etiologies and incidence of neurologic deficits occurring at the time of surgery. SUMMARY...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/00007632-199802010-00008
更新日期:1998-02-01 00:00:00
abstract:STUDY DESIGN:Report of 2 operated cousin cases of the multiple spinal extradural arachnoid cysts. OBJECTIVE:To report the operative findings of cousin cases of the multiple spinal extradural arachnoid cysts and analyze a genetic etiology with the pedigree of all family members. SUMMARY OF BACKGROUND DATA:Spinal extra...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/BRS.0b013e31814b8488
更新日期:2007-09-15 00:00:00
abstract:STUDY DESIGN:The effects of exogenous 5-hydroxytryptamine (5-HT), tumor necrosis factor(TNF)-α, 5-HT + TNF in combination, and autologous nucleus pulposus (NP) at dorsal root ganglion (DRG) were examined using rat models. OBJECTIVE:To examine the interaction of 5-HT with TNF for pain-related behavior in a rat lumbar d...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/BRS.0b013e3181fea618
更新日期:2011-02-01 00:00:00
abstract:STUDY DESIGN:A randomized controlled trial. OBJECTIVE:To investigate the effect of muscle relaxant for muscle blood flow at the trunk muscle in patients with chronic low back pain (LBP). SUMMARY OF BACKGROUND DATA:Paraspinal muscle function is widely believed to play a role and considered to be of etiologic significa...
journal_title:Spine
pub_type: 杂志文章,随机对照试验
doi:10.1097/BRS.0b013e318166e051
更新日期:2008-03-15 00:00:00
abstract::Intraoperative technical complications of pedicle screw fixation include screw cutout or maldirection and pedicle fracture. The aims of this study were 1) to use computed tomography to determine the average pedicle diameter; and 2) to compare these measurements with the outer diameter measurements of commonly used ped...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/00007632-199206001-00017
更新日期:1992-06-01 00:00:00
abstract::This article reports a prospective, randomized, multicentered study documenting changes in the intensity and location of low-back and referred pain to repeated end-range lumbar flexion and extension movements performed first while standing and then while recumbent during a single clinical patient evaluation. Significa...
journal_title:Spine
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1097/00007632-199106001-00006
更新日期:1991-06-01 00:00:00
abstract:STUDY DESIGN:A retrospective study to analyze the effect of decompressive extent on the posterior shift of spinal cord after expansive open-door laminoplasty (ELAP). OBJECTIVE:To investigate the effect of decompressive extent on cord shift distance after ELAP, and determine the morphologic limitations of posterior app...
journal_title:Spine
pub_type: 杂志文章,多中心研究
doi:10.1097/BRS.0b013e3181e80507
更新日期:2011-06-01 00:00:00
abstract::Metabolic changes induced by axial vibratory load to the spine were investigated based on water metabolism in normal intervertebral discs of rabbits with or without pentobarbital anesthesia. Tritiated water concentration in the intervertebral discs of unanesthetized rabbits was reduced remarkably by axial vibration fo...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/00007632-198811000-00016
更新日期:1988-11-01 00:00:00
abstract:STUDY DESIGN:A retrospective cohort analysis. OBJECTIVE:The aim of this study was to assess whether duration of symptoms (DOS) has an effect on clinical outcomes in patients undergoing lumbar decompression. SUMMARY OF BACKGROUND DATA:The success of surgical interventions for lumbar spinal stenosis varies depending on...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/BRS.0000000000002818
更新日期:2019-03-01 00:00:00
abstract:STUDY DESIGN:A matched-pairs animal study. OBJECTIVE:To confirm the accuracy of magnetic resonance imaging (MRI) as a means of evaluating edema and fat degeneration of the multifidus muscle by comparing measurements made using MRI with those made using histological examination. SUMMARY OF BACKGROUND DATA:MRI is consi...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/BRS.0000000000000286
更新日期:2014-05-01 00:00:00
abstract:STUDY DESIGN:A population-based, prospective cohort study. OBJECTIVE:To evaluate the association of early imaging and health and disability status 1 year following acute low back injury, among a population-based sample of Washington State workers' compensation claimants. SUMMARY OF BACKGROUND DATA:Use of early diagno...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/BRS.0b013e318251887b
更新日期:2012-08-15 00:00:00
abstract::Unilateral arch hypertrophy secondary to congenital absence of lumbar articular facets is a rare condition of still undetermined etiology. Most symptomatic cases had a history of mild trauma. Radiologic criteria using plain films and CAT scan are available to make the diagnosis of unilateral arch hypertrophy and the s...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/00007632-198601000-00024
更新日期:1986-01-01 00:00:00
abstract:STUDY DESIGN:Using a rabbit model of postnatal pulmonary hypoplasia, we investigated how expansion thoracoplasty affected growth of the spine and lungs. OBJECTIVE:By constricting the hemithorax in a growing rabbit to create postnatal pulmonary hypoplasia, we quantified how expansion thoracoplasty affects lung volume, ...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/BRS.0b013e3181c4b8c7
更新日期:2010-01-15 00:00:00
abstract::Sixty-six consecutive patients with adolescent idiopathic scoliosis treated by posterior spinal fusion using Harrington distraction compression instrumentation were followed for a minimum of 3 years. Initial surgical correction was satisfactory, but during the follow-up period, mean 4.4 years (3-5 years), there was a ...
journal_title:Spine
pub_type: 杂志文章
doi:
更新日期:1990-08-01 00:00:00
abstract:STUDY DESIGN:A descriptive in vitro study on isolation and differentiation of human mesenchymal stem cells (MSCs) derived from the facet joints and interspinous ligaments. OBJECTIVE:To isolate cells from the facet joints and interspinous ligaments and investigate their surface marker profile and differentiation potent...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/BRS.0000000000001178
更新日期:2016-01-01 00:00:00
abstract::Over a 2-year period, 92 patients were submitted as outpatients to lumbar myelography using lopamidol, a new nonionic water-soluble contrast medium. The incidence and severity of adverse reactions associated with myelography in these cases were compared with those in 116 patients who underwent lopamidol myelography as...
journal_title:Spine
pub_type: 杂志文章
doi:
更新日期:1985-07-01 00:00:00
abstract:STUDY DESIGN:This clinical study examined the association between pulmonary function and thoracic cage deformities in scoliosis. OBJECTIVE:To determine the factors in spinal and thoracic cage deformities that affect pulmonary function in scoliosis. SUMMARY OF BACKGROUND DATA:Pulmonary function in scoliosis has genera...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/01.brs.0000251005.31255.25
更新日期:2007-01-01 00:00:00
abstract:STUDY DESIGN:A prospective observational study with an 11-year follow-up period was performed. OBJECTIVE:To investigate the influence of education and socioeconomic position on the incidence of permanent disability retirement from back pain. SUMMARY OF BACKGROUND DATA:Early retirement because of back pain is the extr...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/00007632-200010010-00010
更新日期:2000-10-01 00:00:00
abstract:STUDY DESIGN:A comparative evaluation of outcome instruments and global assessment was performed. OBJECTIVE:To test patient global assessment as a substitute for the use of more comprehensive outcome instruments in treatment trials of chronic low back pain. SUMMARY OF BACKGROUND DATA:Treatment outcome can be measured...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/00007632-200206010-00014
更新日期:2002-06-01 00:00:00
abstract:STUDY DESIGN:We performed a retrospective review of 126 cases of infectious spondylodiscitis over a 4-year period. OBJECTIVE:Differentiation between pyogenic spondylodiscitis (PS) and tuberculous spondylodiscitis (TS) is essential for deciding on the appropriate therapeutic regimen. The aim of this study was to compar...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/BRS.0b013e3181e04dd3
更新日期:2010-10-01 00:00:00
abstract::To perform decompression of the spinal cord and stabilization of the cervical spine in the patients with cervical spondylotic myelopathy, subtotal vertebrectomy and spinal fusion of the cervical spine were carried out in 30 patients. In 18 patients, three vertebrectomies and a spinal fusion were carried out, and in 12...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/00007632-198605000-00003
更新日期:1986-05-01 00:00:00
abstract:STUDY DESIGN:Single-center retrospective case series. OBJECTIVE:To compare outcomes of instrumented fusion and two methods of decompression for degenerative spondylolisthesis. SUMMARY OF BACKGROUND DATA:There is no consensus on the surgical indications or optimum techniques for lumbar degenerative spondylolisthesis. ...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/BRS.0000000000001688
更新日期:2017-01-01 00:00:00