Kinematics of the canine lumbar intervertebral joint. An in vivo study before and after adjacent instrumentation.


STUDY DESIGN:In vivo, canine lumbar spine intervertebral motion was measured before and after instrumentation of caudal segments. The three-dimensional kinematics of the intervertebral joint were described using helical axes and Fourier series. OBJECTIVE:The in vivo three-dimensional kinematics of the intervertebral joint were measured and described. An animal model where intervertebral motion could be repeatedly changed was developed. SUMMARY OF BACKGROUND DATA:The kinematics of intervertebral joints have been described from results of extensive in vitro testing, some limited in vivo testing, and clinically by evaluation of flexion/extension films. In the canine, in vivo intervertebral motion has been described previously, but the method possessed some measurement artifact. METHODS:In vivo, four canines had motion data collected (L2-L3) while the animals walked on a treadmill. L3 To L7 were instrumented in all of the animals and motion testing was repeated 1 and 12 weeks later. Helical axes of motion were determined for each gait cycle. Fourier series were fit to the motion data, helical axis parameters, and Fourier coefficients were all statistically compared (pre- and postinstrumentation). RESULTS:Vertebral rotations (coronal plane) and excursion of the L2/3 facet increased significantly (P < 0.01) after caudal instrumentation. Helical axes were oriented in a ventral direction and only the angle of rotation about the axis changed significantly (P < 0.05) after instrumentation of caudal segments. The Fourier coefficients (amplitudes) showed a significant (P < 0.05) increase in the coronal plane rotations only, after adjacent instrumentation. CONCLUSION:The in vivo kinematics of the intervertebral joint have been completely defined in this study. Some motion characteristics compare very well to human motion. Since motion at an intervertebral joint now can be repeatedly altered, this animal model shows promise as a useful tool for investigation of tissue response to changes in motion at a joint.


Spine (Phila Pa 1976)




Schendel MJ,Dekutoski MB,Ogilvie JW,Olsewski JM,Wallace LJ


Has Abstract


1995-12-01 00:00:00














  • Cognitive Patient Education for Low Back Pain in Primary Care: A Cluster Randomized Controlled Trial and Cost-Effectiveness Analysis.

    abstract:STUDY DESIGN:A pragmatic cluster randomized controlled trial in primary care. OBJECTIVE:The aim of this study was to estimate the clinical effectiveness and cost-effectiveness of a cognitive-based education program on patients with subacute or chronic low back pain (LBP) in primary care, compared to usual treatment, p...


    pub_type: 杂志文章,随机对照试验


    authors: Werner EL,Storheim K,Løchting I,Wisløff T,Grotle M

    更新日期:2016-03-01 00:00:00

  • Revision spinal fusion in patients older than 75: is it worth the risks?

    abstract:STUDY DESIGN:Retrospective clinical study of a prospective database. OBJECTIVE:This study aims to determine whether revision spinal fusion surgery is worthwhile in patients older than 75 from a risk-benefit perspective. SUMMARY OF BACKGROUND DATA:The benefits of spinal fusion in patients older than 65 is well documen...


    pub_type: 杂志文章


    authors: Chang MS,Chang YH,Revella J,Crandall DG

    更新日期:2014-01-01 00:00:00

  • Two-year follow-up evaluation of surgical treatment for thoracolumbar fracture-dislocation.

    abstract:STUDY DESIGN:A randomized, controlled clinical trial. OBJECTIVE:This randomized controlled clinical trial was aimed at comparing the clinical outcomes of combined posteroanterior (P-A) fusion and transforaminal thoracic interbody fusion (TTIF) in cases of thoracolumbar fracture-dislocation. SUMMARY OF BACKGROUND DATA...


    pub_type: 杂志文章,随机对照试验


    authors: Hao D,Wang W,Duan K,Ma M,Jiang Y,Liu T,He B

    更新日期:2014-10-01 00:00:00

  • Survival after concurrent traumatic dislocation of the atlanto-occipital and atlanto-axial joints: a case report and review of the literature.

    abstract:STUDY DESIGN:A case report of a patient who survived a traumatic disassociation of both atlanto-occipital and atlantoaxial joints. OBJECTIVE.: To describe a rare case of concurrent atlanto-occipital and atlantoaxial dislocation with a review of the related literature regarding occipitocervical dislocation. SUMMARY OF ...


    pub_type: 杂志文章,评审


    authors: Kleweno CP,Zampini JM,White AP,Kasper EM,McGuire KJ

    更新日期:2008-08-15 00:00:00

  • Whiplash and the compensation hypothesis.

    abstract:STUDY DESIGN:Review article. OBJECTIVE:To explain why the evidence that compensation-related factors lead to worse health outcomes is not compelling, either in general, or in the specific case of whiplash. SUMMARY OF BACKGROUND DATA:There is a common view that compensation-related factors lead to worse health outcome...


    pub_type: 杂志文章,评审


    authors: Spearing NM,Connelly LB

    更新日期:2011-12-01 00:00:00

  • CT scanning of lumbar discography. A useful diagnostic adjunct.

    abstract::Twenty-two patients with continued, undiagnosed symptoms of low back and sciatic pain for an average of 14 months were assessed. Patients studied had prior negative evaluations, including EMG, CT scanning, and/or metrizamide myelography. Three-level, posterolateral, extradural discography was performed on the side opp...


    pub_type: 杂志文章


    authors: McCutcheon ME,Thompson WC 3rd

    更新日期:1986-04-01 00:00:00

  • Discographic pain report. Influence of psychological factors.

    abstract:STUDY DESIGN:The possibility of a relationship between discographic pain responses and Minnesota Multiphasic Personality inventory scores was investigated. OBJECTIVES:To determine if patients with elevated Minnesota Multiphasic Personality Inventory scale scores were more likely to report pain on the injection of a no...


    pub_type: 杂志文章


    authors: Block AR,Vanharanta H,Ohnmeiss DD,Guyer RD

    更新日期:1996-02-01 00:00:00

  • Mechanism of production of scoliosis. A hypothesis.

    abstract::On the basis of previous studies on the vertebral column and thoracic skeleton, the author generated a hypothesis for the mechanism of production of scoliosis. According to this hypothesis, vertical stability of the thoracic spine is maintained by equal support through the ribs from both sides due to the equal load br...


    pub_type: 杂志文章


    authors: Pal GP

    更新日期:1991-03-01 00:00:00

  • Time Demand and Radiation Dose in 3D-Fluoroscopy-based Navigation-assisted 3D-Fluoroscopy-controlled Pedicle Screw Instrumentations.

    abstract:STUDY DESIGN:Prospective single-center cohort study to record additional time requirements and radiation dose in navigation-assisted O-arm-controlled pedicle screw (PS) instrumentations. OBJECTIVE:The aim of this study was to evaluate amount of extra-time and radiation dose for navigation-assisted PS instrumentations ...


    pub_type: 杂志文章


    authors: Balling H

    更新日期:2018-05-01 00:00:00

  • Discrimination validity of the scoliosis research society-22 patient questionnaire: relationship to idiopathic scoliosis curve pattern and curve size.

    abstract:STUDY DESIGN:Prospective observational study. OBJECTIVE:To determine the discriminant validity of the Scoliosis Research Society-22 (SRS-22) health-related quality-of-life (HRQL) questionnaire for idiopathic scoliosis patients based on curve pattern and curve size. SUMMARY OF BACKGROUND DATA:An important psychometric...


    pub_type: 杂志文章


    authors: Asher M,Min Lai S,Burton D,Manna B

    更新日期:2003-01-01 00:00:00

  • The correlation of preoperative three-dimensional computed tomography reconstructions with operative findings in congenital scoliosis.

    abstract:STUDY DESIGN:A retrospective radiographic and chart review of patients who underwent computed tomography with three-dimensional reconstructions before single stage anterior and posterior hemivertebra excision. OBJECTIVE:To assess the efficacy of three-dimensional computed tomography reconstructions in accurately ident...


    pub_type: 杂志文章


    authors: Hedequist DJ,Emans JB

    更新日期:2003-11-15 00:00:00

  • Biologic and biomechanic evaluation of posterior lumbar fusion in the rabbit. The effect of fixation rigidity.

    abstract:STUDY DESIGN:The histologic and biomechanic characteristics of posterior lumbar fusion with varying rigidity of a novel internal fixation construct in the rabbit were analyzed. OBJECTIVES:To evaluate this rabbit model for future studies of fusion augmentation. SUMMARY OF BACKGROUND DATA:Previous studies in goats and ...


    pub_type: 杂志文章


    authors: Feighan JE,Stevenson S,Emery SE

    更新日期:1995-07-15 00:00:00

  • Lumbosacral stability of consolidated anteroposterior fusion after instrumentation removal determined by roentgen stereophotogrammetric analysis and direct surgical exploration.

    abstract:STUDY DESIGN:The intervertebral stability of bony consolidated anteroposterior lumbosacral spondylodesis is evaluated by roentgen stereophotogrammetric analysis and direct surgical exploration before and after removal of the internal fixator. OBJECTIVES:To determine the remaining in vivo stability of spinal arthrodesi...


    pub_type: 临床试验,杂志文章


    authors: Pape D,Fritsch E,Kelm J,Müller K,Georg T,Kohn D,Adam F

    更新日期:2002-02-01 00:00:00

  • Extension-flexion radiographs for motion studies of the lumbar spine. A comparison of two methods.

    abstract::Since abnormal motion is a quantitative phenomenon and present primarily in the two lowest vertebral spaces, a roentgen examination method yielding the maximum mobility would appear to be suitable. When performing extension-flexion radiographs of the lumbar spine, positioning of patients varies considerably. The prese...


    pub_type: 杂志文章


    authors: Putto E,Tallroth K

    更新日期:1990-02-01 00:00:00

  • Computed tomography findings 4 years after surgical management of lumbar spinal stenosis. No correlation with clinical outcome.

    abstract:STUDY DESIGN:A prospective, cross-sectional study of the correlation between postoperative computed tomography findings and patients' clinical outcomes approximately 4 years after laminectomy for lumbar spinal stenosis. OBJECTIVES:To evaluate clinical and radiologic characteristics and their relation to each other. S...


    pub_type: 杂志文章


    authors: Herno A,Airaksinen O,Saari T,Pitkänen M,Manninen H,Suomalainen O

    更新日期:1999-11-01 00:00:00

  • A Study on the Anatomical Relationship of the Lumbar Extrapedicular Puncture Approach with the Spinal Nerve and its Branches.

    abstract:STUDY DESIGN:An anatomical study in fifteen cadavers. OBJECTIVE:To observe the anatomical relationship of the extrapedicular puncture approach with the spinal nerve and its branches, evaluate the risk of injury to these nerves and recommend a safe puncture path for lumbar extrapedicular percutaneous vertebroplasty (PV...


    pub_type: 杂志文章


    authors: Zhong Y,Luo L,Zhao C,Li P,Dong B,Wang Z,Jiang D,Zhou Q,Liu L

    更新日期:2021-01-08 00:00:00

  • Magnetic resonance imaging of the spinal cord in cervical ossification of the posterior longitudinal ligament. Can it predict surgical outcome?

    abstract:STUDY DESIGN:Magnetic resonance imaging findings of an increased signal in the cervical cord in patients undergoing surgery for ossification of the posterior longitudinal ligament were analyzed to determined whether an increased signal on T2-weighted images correlated with a poorer outcome. OBJECTIVES:To clarify wheth...


    pub_type: 杂志文章


    authors: Nakamura M,Fujimura Y

    更新日期:1998-01-01 00:00:00

  • Outcomes after laminoplasty compared with laminectomy and fusion in patients with cervical myelopathy: a systematic review.

    abstract:STUDY DESIGN:Systematic review. OBJECTIVE:To determine the effectiveness and safety of cervical laminoplasty versus laminectomy and fusion for the treatment of cervical myelopathy, and to identify any patient subgroups for whom one treatment may result in better outcomes than the other. SUMMARY OF BACKGROUND DATA:Cer...


    pub_type: 杂志文章,评审


    authors: Yoon ST,Hashimoto RE,Raich A,Shaffrey CI,Rhee JM,Riew KD

    更新日期:2013-10-15 00:00:00

  • Safety and Efficacy of Reconstruction of Complex Cervical Spine Pathology Using Pedicle Screws Inserted with Stealth Navigation and 3D Image-Guided (O-Arm) Technology.

    abstract:STUDY DESIGN:Retrospective analysis. OBJECTIVE:To determine safety and efficacy of cervical pedicle screw placement using O-Arm and Stealth Navigation in patients with cervicothoracic spinal deformities and revision subaxial cervical pathology. SUMMARY OF BACKGROUND DATA:Cervical pedicle screws are biomechanically ad...


    pub_type: 杂志文章


    authors: Theologis AA,Burch S

    更新日期:2015-09-15 00:00:00

  • Rapid progression of destructive spondyloarthropathy.

    abstract:STUDY DESIGN:A case of destructive spondyloarthropathy was reported. OBJECTIVES:To describe the rapid destruction of intervertebral disc and vertebral body as a consequence of destructive spondyloarthropathy in a patients with end-stage renal disease receiving hemodialysis. SUMMARY OF BACKGROUND DATA:An important fac...


    pub_type: 杂志文章


    authors: Chow KM,Griffith JF,Fung KY,Szeto CC

    更新日期:2005-01-01 00:00:00

  • Timing of activation of the erector spinae and hamstrings during a trunk flexion and extension task.

    abstract:STUDY DESIGN:Timing of activation of the hamstrings and erector spinae was assessed using surface electromyography. OBJECTIVES:To investigate the influence of posture and movement speed during trunk flexion-extension on the flexion-relaxation response and trunk muscle activation patterns. SUMMARY OF BACKGROUND DATA:T...


    pub_type: 杂志文章


    authors: McGorry RW,Hsiang SM,Fathallah FA,Clancy EA

    更新日期:2001-02-15 00:00:00

  • A fibronectin fragment stimulates intervertebral disc degeneration in vivo.

    abstract:STUDY DESIGN:A radiographic, histologic, biochemical, and gene expression study was conducted in vivo in a rabbit model to determine the effect of injection of the N-terminal 30 kDa fibronectin fragment (Fn-f) into the intervertebral disc along with various control substances. OBJECTIVE:To determine if the Fn-f is abl...


    pub_type: 杂志文章


    authors: Greg Anderson D,Li X,Tannoury T,Beck G,Balian G

    更新日期:2003-10-15 00:00:00

  • Osteoid osteomas and osteoblastomas of the occipitocervical junction.

    abstract:STUDY DESIGN:We describe our surgical experience to remove osteoid osteomas and osteoblastomas of the occipitocervical junction. In this location, vertebral artery vicinity requires special consideration. OBJECTIVES:We illustrate our surgical approaches to remove lesions confidently, while minimizing bone resection to...


    pub_type: 杂志文章


    authors: Bruneau M,Cornelius JF,George B

    更新日期:2005-10-01 00:00:00

  • Value of immediate preprocedure magnetic resonance imaging in patients scheduled to undergo vertebroplasty or kyphoplasty.

    abstract:STUDY DESIGN:Retrospective case series. OBJECTIVE:To determine the incidence of additional vertebral compression fractures diagnosed with repeat MRI immediately before vertebroplasty or kyphoplasty. SUMMARY OF BACKGROUND DATA:Vertebral compression fractures, which occur frequently in the elderly, are more likely in p...


    pub_type: 杂志文章


    authors: Benz BK,Gemery JM,McIntyre JJ,Eskey CJ

    更新日期:2009-03-15 00:00:00

  • The role of steroids and their effects on phospholipase A2. An animal model of radiculopathy.

    abstract:STUDY DESIGN:The possible role of phospholipase A2 in an animal model for lumbar radiculopathy and mechanisms of epidural steroid injections were studied. OBJECTIVES:To clarify the pathophysiologic mechanism of the recently proved animal model for lumbar radiculopathy and to characterize further the mechanisms of acti...


    pub_type: 杂志文章


    authors: Lee HM,Weinstein JN,Meller ST,Hayashi N,Spratt KF,Gebhart GF

    更新日期:1998-06-01 00:00:00

  • Prospective radiographic and clinical outcomes of dual-rod instrumented anterior spinal fusion in adolescent idiopathic scoliosis: comparison with single-rod constructs.

    abstract:STUDY DESIGN:Anterior single or dual-rod instrumentation may be performed for the treatment of main thoracic, thoracolumbar, or lumbar adolescent idiopathic scoliosis (AIS) curves. OBJECTIVE:To compare the results of anterior dual-rod instrumentation in single-major AIS curves with our previous experience using single...


    pub_type: 临床试验,杂志文章


    authors: Hurford RK Jr,Lenke LG,Lee SS,Cheng I,Sides B,Bridwell KH

    更新日期:2006-09-15 00:00:00

  • Posterior wiring without bony fusion in traumatic distractive flexion injuries of the mid to lower cervical spine. Long-term follow-up in 30 patients.

    abstract::Thirty-four patients with traumatic distractive flexion injuries in the mid to lower cervical spine were treated with posterior wire stabilization without bony fusion from January 1981 through May 1987. Fifteen had cord involvement, and nine had root involvement. Ten were neurologically intact. Thirty patients were fo...


    pub_type: 杂志文章


    authors: Feldborg Nielsen C,Annertz M,Persson L,Wingstrand H,Säveland H,Brandt L

    更新日期:1991-04-01 00:00:00

  • The destroyed lung syndrome: report of a case after Harrington rod instrumentation and fusion for idiopathic scoliosis.

    abstract:STUDY DESIGN:A case report is described. OBJECTIVE:To describe the very rare complication of destroyed lung syndrome after scoliosis correction. SUMMARY OF BACKGROUND DATA:The destroyed lung syndrome has, to our knowledge, never been associated with scoliosis in the literature. Bronchial kinking and compression by th...


    pub_type: 杂志文章


    authors: van Ooij A,van Belle A,Timmer R,van Rhijn L

    更新日期:2002-07-15 00:00:00

  • The Impact of Body Mass Index (BMI) on 30-day Outcomes Following Posterior Spinal Fusion in Neuromuscular Scoliosis.

    abstract:STUDY DESIGN:Retrospective. OBJECTIVE:Assess the impact of varying severity of BMI on 30-day outcomes following posterior spinal fusions in neuromuscular scoliosis. SUMMARY OF BACKGROUND DATA:Obesity in the pediatric population is shown to be associated with adverse outcomes across varying specialties. The weight-out...


    pub_type: 杂志文章


    authors: Malik AT,Tamer R,Yu E,Kim J,Khan SN

    更新日期:2019-10-01 00:00:00

  • Potential usefulness of 18F-2-fluoro-deoxy-D-glucose positron emission tomography in cervical compressive myelopathy.

    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...


    pub_type: 杂志文章


    authors: Baba H,Uchida K,Sadato N,Yonekura Y,Kamoto Y,Maezawa Y,Furusawa N,Abe Y

    更新日期:1999-07-15 00:00:00