Abstract:
STUDY DESIGN:Loads acting in vivo on a vertebral body replacement (VBR) and the shape of the back were measured. OBJECTIVE:To find an explanation for the contradictory results in literature regarding spinal loads for sitting and standing. SUMMARY OF BACKGROUND DATA:In several in vivo studies, the intradiscal pressure was shown to be higher for sitting than for standing. However, stadiometric measurements, load measurements on internal spinal fixators, and 1 study on intradiscal pressure have shown contradictory results. It therefore remains unknown whether sitting or standing causes greater loading on the spine. METHODS:Telemeterized VBR was implanted into 5 patients. Implant loads were measured in several sessions during standing and during relaxed sitting on a stool. In the sitting position, the subjects' arms were either hanging at their sides or placed on their thighs. The shape of the back during sitting and standing was additionally determined by rasterstereography. RESULTS:When sitting with their arms hanging, the loads for the 5 patients ranged from 107% to 228% of the values for standing. A relationship was found between this sit-to-stand load ratio and both the kyphosis angles, which increased from 41° to 67°, and the distance between vertebra prominens and lordosis apex related to the body height, which increased from 0.21 to 0.26. By placing the arms on the thighs, the force on the VBR was reduced by an average of 13% (2%-41%), when compared to sitting with the arms hanging at the sides. CONCLUSION:The spinal load differences between sitting and standing depend on several key factors, most notably arm position and individual spinal shape. These 2 parameters, however, varied between studies in the literature and may therefore account for the continued contradictory discussion. Patients can reduce their spinal load during sitting by supporting the upper body by the arms.
journal_name
Spine (Phila Pa 1976)journal_title
Spineauthors
Dreischarf M,Bergmann G,Wilke HJ,Rohlmann Adoi
10.1097/BRS.0b013e3181d55d52subject
Has Abstractpub_date
2010-10-15 00:00:00pages
2015-21issue
22eissn
0362-2436issn
1528-1159pii
00007632-201010150-00008journal_volume
35pub_type
杂志文章相关文献
SPINE文献大全abstract::An anatomic study of lumbar nerve root lesions in the foraminal zone was performed on 35 cadavers. Two morphologic abnormalities of the nerve roots in the intervertebral foramen were found. The first was an abnormal transverse course of the nerve roots. The second was an indentation on the dorsal root ganglia caused b...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/00007632-199311000-00017
更新日期:1993-11-01 00:00:00
abstract:STUDY DESIGN:Single institution, single surgeon retrospective review. OBJECTIVE:To investigate if the use of titanium mesh cage on the site of infection could be beneficial for successful outcome of the operative treatment for pyogenic spondylitis. SUMMARY OF BACKGROUND DATA:There is a controversy concerning the opti...
journal_title:Spine
pub_type: 杂志文章,评审
doi:10.1097/BRS.0b013e318187875e
更新日期:2008-10-01 00:00:00
abstract::During the summers of 1987 and 1988, 14 cervical spine injuries sustained during bodysurfing accidents at the beaches around Ocean City, Maryland presented to our Neurotrauma service. All the patients were men, predominantly in their middle years (mean age = 40), and otherwise healthy. Likely mechanisms of injury sugg...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/00007632-199203000-00002
更新日期:1992-03-01 00:00:00
abstract::The presence of a bifid posterior arch of the atlas has been regarded as a contraindication to the wiring of C1-2 for atlantoaxial arthrodesis. Three cases with C1 posterior spondyloschisis are presented with successful atlantoaxial arthrodesis using laterally placed wires to avoid the midline defect of the atlas. An ...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/00007632-198401000-00014
更新日期:1984-01-01 00:00:00
abstract:STUDY DESIGN:We compared anterior and posterior surgery for cervical myelopathy resulting from ossification of the posterior longitudinal ligament. Surgical techniques, based on shape and distribution of ossification of the posterior longitudinal ligament, were divided into four technical phases. OBJECTIVES:Long-term ...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/00007632-199510001-00012
更新日期:1995-10-15 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:A review is presented on current knowledge of the micromechanical factors in the intervertebral disc, their role in modifying cell biology, and changes with degeneration. OBJECTIVES:To identify current knowledge, knowledge gaps, and areas for future research in micromechanics of the intervertebral disc. ...
journal_title:Spine
pub_type: 杂志文章,评审
doi:10.1097/01.brs.0000146050.57722.2a
更新日期:2004-12-01 00:00:00
abstract:STUDY DESIGN:Retrospective review of a prospectively collected, multicentered database from the Scoliosis Research Society. OBJECTIVES:To evaluate incidences of complications in a series of spinal fusions for Scheuermann kyphosis (SK) and to assess whether the incidence of complications is associated with patient age ...
journal_title:Spine
pub_type: 杂志文章,多中心研究
doi:10.1097/BRS.0b013e3181c47f0f
更新日期:2010-01-01 00:00:00
abstract:STUDY DESIGN:This is a technical note and review of the literature. OBJECTIVE:We propose to describe a revised surgical technique of C1 lateral mass screw insertion with protection of C1-C2 venous sinus surrounding the C2 nerve root. SUMMARY OF BACKGROUND DATA:During C1 lateral mass screw insertion and in posterior C...
journal_title:Spine
pub_type: 杂志文章,评审
doi:10.1097/BRS.0b013e3181e215ff
更新日期:2010-10-01 00:00:00
abstract:STUDY DESIGN:A technical report of fluoroscopically assisted percutaneous translaminar facet screw fixation after anterior lumbar interbody fusion (ALIF). OBJECTIVES:To describe a minimally invasive translaminar facet screw fixation technique that was modified from the Magerl method, and to assess its technical feasib...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/01.brs.0000157473.17313.6f
更新日期:2005-04-01 00:00:00
abstract:STUDY DESIGN:This case study describes the usefulness of high-resolution 18F-2-fluoro-deoxy-D-glucose (18FDG)-positron emission tomography (PET) for metabolic neuroimaging of the cervical spinal cord in patients with compressive myelopathy. OBJECTIVE:To examine whether 18FDG-PET imaging could visualize deterioration o...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/00007632-199907150-00010
更新日期:1999-07-15 00:00:00
abstract:STUDY DESIGN:Retrospective analysis of computed tomographic images of 92 normal pediatric cervical vertebrae. OBJECTIVE:The aim of this study was to ascertain the feasibility of the pedicle, intralaminar, and lateral mass screws fixation in children. SUMMARY OF BACKGROUND DATA:Fixation techniques of C7 vertebrae are ...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/BRS.0000000000002742
更新日期:2018-12-15 00:00:00
abstract::Pain is an extremely complex process that involves the interaction of an array of neurotransmitters and neuromodulators at all levels of the neuraxis. Identification of the receptors and processes that are involved in the transmission of pain at a spinal level has led to the use of new agents and new techniques in pai...
journal_title:Spine
pub_type: 杂志文章,评审
doi:10.1097/00007632-199701010-00016
更新日期:1997-01-01 00:00:00
abstract:STUDY DESIGN:Spine Update on the biopsychosocial model. OBJECTIVE:To review and discuss the strengths and weaknesses of the application of the model to spine care. SUMMARY OF BACKGROUND DATA:The biopsychosocial model of illness has had (and will continue to have) a significant impact on spine care. It has changed-in ...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/BRS.0b013e3181604572
更新日期:2008-01-15 00:00:00
abstract:STUDY DESIGN:A nonrandomized, retrospective human study of patients requiring anterior discectomy and reconstruction from C3 to T1. The pattern of incorporation, presence or absence of disc space collapse, maintenance of correction, and clinical outcomes were considered. OBJECTIVE:To determine the efficacy of corallin...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/00007632-199907010-00005
更新日期:1999-07-01 00:00:00
abstract:STUDY DESIGN:Literature-based review. OBJECTIVE:To review the published data on occupant kinematic and neuromuscular responses during low-speed impacts and analyze how these data inform our understanding of whiplash injury. SUMMARY OF BACKGROUND DATA:A stereotypical kinematic and neuromuscular response has been obser...
journal_title:Spine
pub_type: 杂志文章,评审
doi:10.1097/BRS.0b013e3182387d71
更新日期:2011-12-01 00:00:00
abstract:STUDY DESIGN:A prospective questionnaire translation and validation. OBJECTIVE:The aim of this study was to translate and cross-culturally adapt the Japanese Orthopaedic Association Cervical Myelopathy Evaluation Questionnaire (JOACMEQ) into Traditional Chinese (Hong Kong) and to assess its validity, reliability, and ...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/BRS.0000000000002287
更新日期:2018-02-15 00:00:00
abstract::It is hypothesized on the basis of experimental intervertebral disc degeneration that herniated disc is actually newly synthesized proliferative metaplastic fibrocartilage and not herniation of pre-existing disc tissue, particularly that of the nucleus pulposus. Human material in selected surgical tissues was examined...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/00007632-198809000-00014
更新日期:1988-09-01 00:00:00
abstract:STUDY DESIGN:An in vivo landrace model of cement augmentation of pedicle screw was established, and axial pull-out tests and histological analysis were performed. OBJECTIVE:To investigate the long-term in vivo biomechanical performance of pedicle screws augmented with calcium sulfate cement. SUMMARY OF BACKGROUND DAT...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/BRS.0b013e318184e750
更新日期:2008-11-01 00:00:00
abstract:STUDY DESIGN:Retrospective review. OBJECTIVE:To assess the relationship between age and complications, and report age-stratified complication rates for the surgical treatment of adult scoliosis. SUMMARY OF BACKGROUND DATA:Literature examining age and complication rates for adult scoliosis surgery is conflicting. The ...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/BRS.0000000000001239
更新日期:2016-03-01 00:00:00
abstract::A new screening test and operative technique for the relief of intractable pain in the failed back syndrome has been devised and has yielded a 72% success rate on short-term follow-up (9--30 months) in 26 patients. This syndrome is thought to represent pain emanating from permanently damaged nerve roots and not from t...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/00007632-198007000-00011
更新日期:1980-07-01 00:00:00
abstract::Does infant malnutrition produce smaller adult spinal canals? Lumbar and thoracic vertebrae (n X 1073), from a prehistoric American Indian population (15-55 yrs of age), were measured for anteroposterior (AP) and transverse (TR) vertebral canal sizes, nerve root tunnel (intervertebral foramen) widths (NRT), vertebral ...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/00007632-198503000-00012
更新日期:1985-03-01 00:00:00
abstract::Flexibility of the porcine lumbosacral spine was measured after application of six different types of surgical instrumentation, and in a control state. Fifteen adult pig spines were tested with flexion, extension, lateral bending, and axial rotation torques applied to the upper end with the pelvis fixed. Instrumentati...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/00007632-199011010-00013
更新日期:1990-11-01 00:00:00
abstract:STUDY DESIGN:A radiographic comparison of the mechanical efficacy of the Hartshill rectangle and that of the AO internal spinal skeletal fixation systems in the management of unstable burst fractures of the thoracic and lumbar spine. OBJECTIVES:To study the restoration and maintenance of normal spinal anatomy after op...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/00007632-199801010-00022
更新日期:1998-01-01 00:00:00
abstract:STUDY DESIGN:Observational study of patients with scoliosis and matched controls. OBJECTIVES:To determine the validity and reliability of the modified Scoliosis Research Society Outcomes Instrument (SRS-22) for use in the assessment of deformity in adults. To demonstrate the discriminate validity of the SRS-22 in diff...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/01.BRS.0000084666.53553.D6
更新日期:2003-09-15 00:00:00
abstract:STUDY DESIGN:Prospective cross-sectional measurement study. OBJECTIVE:To determine the ability of the Scoliosis Research Society (SRS)-22 questionnaire to discriminate among management and scoliosis severity subgroups and to correlate with internal and external measures of curve severity. SUMMARY OF BACKGROUND DATA:I...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/BRS.0b013e3181af28bf
更新日期:2009-10-15 00:00:00
abstract:STUDY DESIGN:Prospective multicenter observation. OBJECTIVE:To determine the validity of 3 commercially available at recording thoracic-lumbar-sacral orthosis (TLSO) wearing time of children with spinal cord injury (SCI) and to assess each monitor's function during daily activities. SUMMARY OF BACKGROUND DATA:A major...
journal_title:Spine
pub_type: 杂志文章,多中心研究
doi:10.1097/BRS.0b013e318178864e
更新日期:2008-06-15 00:00:00
abstract:STUDY DESIGN:Cadaveric study on fresh unprocessed, nonpreserved, undyed specimens, which has not previously been reported. OBJECTIVE:Our aim was to explore the possible topographic correlation of the C5 nerve root with regards to its course and regional relation to C6 Chassaignac tubercle. SUMMARY OF BACKGROUND DATA:...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/BRS.0000000000003479
更新日期:2020-08-01 00:00:00
abstract:STUDY DESIGN:A case report of traumatic atlanto-occipital dislocation managed by transarticular screw fixation. OBJECTIVES:To present a case with initial failed wire fixation but successful reduction and fixation with transarticular screw fixation and occipitocervical plate stabilization. SUMMARY OF BACKGROUND DATA:A...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/00007632-200103150-00030
更新日期:2001-03-15 00:00:00
abstract:STUDY DESIGN:A cross-sectional survey among health professionals working in a Kuwait hospital. OBJECTIVE:To investigate the prevalence and factors associated with low back pain (LBP). SUMMARY OF BACKGROUND DATA:The literature suggests that health professionals are exposed to occupational risk factors that predispose ...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/BRS.0b013e3181657df7
更新日期:2008-03-01 00:00:00