Добірка наукової літератури з теми "Cervical facet dislocation"

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Статті в журналах з теми "Cervical facet dislocation"

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Das, Sunil Kumar, Arunkumar Sekar, Srinivas Jaidev, Ashis Patnaik, and Rabi Narayan Sahu. "Contiguous-Level Unilateral Cervical Spine Facet Dislocation—A Report of a Less Discussed Subtype." Journal of Neurosciences in Rural Practice 13, no. 01 (January 2022): 155–58. http://dx.doi.org/10.1055/s-0041-1742135.

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AbstractUnilateral facet dislocation of subaxial cervical spine trauma is characterized by dislocation of inferior facet of superior vertebra over the superior facet of inferior vertebra. The injury is due to high-velocity trauma and associated with instability of spinal column. Such unilateral facet dislocations occurring at multiple adjacent levels for some reason are not reported or studied frequently. We have reported two cases of multiple-level dislocation of unilateral facets managed in our hospital with a review of available literature. The injury occurs as one side of the motion segment translates and rotates around an intact facet on the contralateral side. The major mechanism of injury is distractive flexion injury with axial rotation component. The injury is associated with instability secondary to loss of the discoligamentous complex. In cases with multiple-level dislocations of unilateral cervical facets, there are multiple mechanisms associated with significant neurological injury and most of them succumb at the site of injury. Only three other cases are available in English language literature. The neurological outcome is invariably poor. Multiple-level facet dislocations of subaxial cervical spine are reported sparsely in literature. We suspect that due to high-velocity nature of these injuries, most of them succumb soon after injury and not often reported. This article reports two cases of contiguous-level unilateral facet dislocation of subaxial cervical spine with associated injuries and the outcomes with review of literature.
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BURKUS, J. KENNETH. "Cervical Facet Asymmetry Simulating Facet Dislocation." Spine 13, no. 1 (January 1988): 118–20. http://dx.doi.org/10.1097/00007632-198801000-00030.

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Basu, Saumyajit, Farid H. Malik, Jay Deep Ghosh, and Agnivesh Tikoo. "Delayed Presentation of Cervical Facet Dislocations." Journal of Orthopaedic Surgery 19, no. 3 (December 2011): 331–35. http://dx.doi.org/10.1177/230949901101900314.

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Purpose. To review treatment outcomes of 19 patients with delayed presentation of cervical facet dislocations. Methods. Records of 17 men and 2 women aged 21 to 63 (mean, 39) years who presented with unilateral (n=14) or bilateral (n=5) cervical facet dislocation after a delay of 7 to 21 (mean, 14) days were reviewed. The most common level of dislocation was C5–C6 (n=9), followed by C4–C5 (n=6), C3–C4 (n=2), and C6–C7 (n=2). The neurological status was graded according to the Frankel classification. One patient (with bilateral facet dislocation) had complete quadriplegia (grade A), 11 had incomplete spinal cord injury (grades C and D), and 7 had nerve root injury. Closed reduction using continuous skull traction for 2 days was attempted. In patients achieving closed reduction, only anterior discectomy and fusion was performed. Those who failed closed reduction underwent posterior partial/complete facetectomy and fixation. If there was traumatic disk prolapse, anterior decompression and fusion was then performed. Results. The mean follow-up was 46 (range, 12–108) months. 10 of 14 patients with unilateral facet dislocation were reduced with traction and then underwent anterior discectomy and fusion. The remaining 4 patients who failed closed reduction underwent posterior facetectomy and fixation; 3 of them had traumatic disk prolapse and thus also underwent anterior discectomy and fusion with cage and plate. Four of the 5 patients with bilateral facet dislocations failed closed reduction and underwent posterior facetectomy and lateral mass fixation, as well as anterior surgery. The remaining patient achieved reduction after traction and hence underwent only anterior discectomy and fusion. All patients achieved pain relief and sufficient neck movement for normal activities. All 7 patients with nerve root injury improved completely; 9 of the 11 patients with incomplete spinal cord injury improved by one Frankel grade, and the remaining 2 by 2 grades. The patient with complete quadriplegia showed no improvement. Conclusion. Preoperative traction is a safe and effective initial treatment for neglected cervical facet dislocation, as it reduces the need for extensive (anterior and posterior) surgery. If closed reduction is successful, anterior discectomy and fusion is the surgery of choice. If not, posterior facetectomy and fusion followed by anterior surgery is preferred.
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Ivancic, Paul C., Adam M. Pearson, Yasuhiro Tominaga, Andrew K. Simpson, James J. Yue, and Manohar M. Panjabi. "Biomechanics of Cervical Facet Dislocation." Traffic Injury Prevention 9, no. 6 (December 9, 2008): 606–11. http://dx.doi.org/10.1080/15389580802344804.

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Leite, C. C., B. E. Escobar, C. Bazan III., and J. Randy Jinkins. "MRI of cervical facet dislocation." Neuroradiology 39, no. 8 (August 8, 1997): 583–88. http://dx.doi.org/10.1007/s002340050472.

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Panjabi, Manohar M., Andrew K. Simpson, Paul C. Ivancic, Adam M. Pearson, Yasuhiro Tominaga, and James J. Yue. "Cervical facet joint kinematics during bilateral facet dislocation." European Spine Journal 16, no. 10 (June 14, 2007): 1680–88. http://dx.doi.org/10.1007/s00586-007-0410-2.

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Bartels, Ronald H. M. A., and Roland Donk. "Delayed management of traumatic bilateral cervical facet dislocation: surgical strategy." Journal of Neurosurgery: Spine 97, no. 3 (October 2002): 362–65. http://dx.doi.org/10.3171/spi.2002.97.3.0362.

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✓ Postinjury cervical spine instability typically requires surgical treatment in the acute or semiacute stage. The authors, however, report on three patients with older (> 8 weeks) untreated bilateral cervical facet dislocation. In two patients they attempted a classic anterior-posterior-anterior approach but failed. The misalignment in the second stage of the procedure could not be corrected, and they had to add a fourth, posterior, stage. To avoid the fourth stage, thereby reducing operating time and risk of neurological damage while turning the patient, they propose the following sequence: 1) a posterior approach to perform a complete facetectomy bilaterally with no attempt to reduce the dislocation; 2) an anterior microscopic discectomy with reduction of the dislocation and anterior fixation; and 3) posterior fixation. This sequence of procedures was successfully performed in the third patient. Based on this experience, they suggest that in cases of nonacute bilateral cervical facet dislocations the operating sequence should be posterior-anterior-posterior.
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Anissipour, Alireza K., Julie Agel, Matthew Baron, Erik Magnusson, Carlo Bellabarba, and Richard J. Bransford. "Traumatic Cervical Unilateral and Bilateral Facet Dislocations Treated With Anterior Cervical Discectomy and Fusion Has a Low Failure Rate." Global Spine Journal 7, no. 2 (April 2017): 110–15. http://dx.doi.org/10.1177/2192568217694002.

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Study Design: Retrospective radiographic and chart review. Objective: To define the rate and associated risk factors of treatment failure of anterior cervical fusion for treatment of cervical facet dislocations. Methods: Between 2004 and 2014, a retrospective review at a single level 1 trauma center identified 38 patients with unilateral or bilateral dislocated facet(s) treated with anterior cervical discectomy and fusion (ACDF). Two patients were eliminated due to less than 30-day follow-up. Demographic data, initial neurological exams, surgical data, radiographic findings, and follow-up records were reviewed. Results: Of the 36 patients with facet dislocations treated with ACDF using a fixed locking plate, 16 were unilateral and 20 were bilateral. The mean age was 35 years (range 13-58). Mean follow-up was 323 days (range 30-1998). There were 3 treatment failures (8%). Three of 7 (43%) endplate fractures failed ( P < .01), and 1/28 (4%) facet fractures failed ( P = .13). The mean time to failure was 4 weeks (1-7 weeks). One treatment failure had a facet fracture, and all 3 failures had an associated endplate fracture. Conclusion: Treatment failure occurred in 3 out of 36 (8%) patients with facet fracture dislocations treated with anterior cervical discectomy, fusion, and plating. Rates of failure are lower than has been previously reported. Endplate fractures of the inferior level in jumped facets appears to be a major risk factor of biomechanical failure. However, a facet fracture may not be a risk factor for failure. In the absence of an endplate fracture, ACDF is a reasonable treatment option in patients with single-level cervical facet dislocation.
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Ordonez, Bernardo J., Edward C. Benzel, Sait Naderi, and Simcha J. Weller. "Cervical facet dislocation: techniques for ventral reduction and stabilization." Journal of Neurosurgery: Spine 92, no. 1 (January 2000): 18–23. http://dx.doi.org/10.3171/spi.2000.92.1.0018.

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Object. To demonstrate the safety and utility of one surgical approach, the authors reviewed their experience with the ventral surgical approach for decompression, reduction, and stabilization in 10 patients with either unilateral or bilateral cervical facet dislocation. Methods. Six patients presented with unilateral cervical facet dislocation and four patients with bilateral cervical facet dislocation. There were six male and four female patients who ranged in age from 17 to 72 years (average 37.1 years). The level of facet dislocation was C4–5 in one, C5–6 in four, and C6–7 in five patients. Three patients presented with a complete spinal cord injury (SCI), three patients with an incomplete SCI, three with radicular symptoms or myeloradiculopathy, and one patient was neurologically intact. All patients underwent plain radiography, magnetic resonance imaging, and computerized tomography evaluation of the cervical spine. All patients had sustained significant ligamentous injury with minimum or no bone disruption. All patients underwent ventral decompressive surgery, reduction of the dislocation, and stabilization of the cervical spine. Techniques for performing ventral reduction of unilateral or bilateral cervical facet dislocation are described. Decompression, reduction, and stabilization of the cervical spine via the ventral approach was accomplished in all but one patient. This patient underwent a ventral decompressive procedure and an attempt at ventral reduction and subsequent dorsal reduction and fusion in which a lateral mass screw plate fixation system was used; this was followed by ventral placement of instrumentation and fusion. There were no surgery-related complications. Postoperative neurological status was unchanged in four patients and improved in six patients. No patient experienced neurological deterioration after undergoing this surgical approach. Conclusions. The authors conclude that a ventral surgical decompression, reduction, and stabilization procedure provides a safe and effective alternative for the treatment of patients with unilateral or bilateral cervical facet dislocation without significant bone disruption.
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Kahn, Anthony, Robert Leggon, and Ronald W. Lindsey. "Cervical Facet Dislocation: Management Following Delayed Diagnosis." Orthopedics 21, no. 10 (October 1998): 1089–91. http://dx.doi.org/10.3928/0147-7447-19981001-07.

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Дисертації з теми "Cervical facet dislocation"

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Kontautas, Egidijus. "Stuburo kaklinės dalies tarpslankstelinių sąnarių išnirimų atstatymo optimizavimas." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2005. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2005~D_20051207_095351-28290.

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1. INTRODUCTION Injuries of the lower cervical spine can be among the most devastating injuries of the musculoskeletal system because of the increased risk of the injury to the spinal cord, and also because they so often occur to the younger members of the population (Jones A.A.M. et al., 2003; Sekhon H.S.L. et al., 2001; Ball P.A., 2001). The cervical spine is the most vulnerable spinal segment (Sekhon H.S.L. et al., 2001). The mechanism of cervical spine trauma is defined by the direction and magnitude of the forces that have been applied externally to the head and neck complex resulting in injury (Allen B.L.Jr., 1982). Common injury vectors include flexion, compression, rotation and extension (Allen B.L.Jr., 1982). The pattern of injury is related not only to the external applied force, but also to the initial position or posture of the head and neck at the time of injury (Allen B.L.Jr., 1982). One pattern of these injuries of the lower cervical spine is a facet dislocations (Allen B.L.Jr., 1982). The facet dislocation of the cervical spine result from a hyperflexion injury of the neck (Allen B.L.Jr., 1982). These injuries are characterized radiographically by anterolisthesis of one cervical vertebrae over the other and include the slide anteriorly of the inferior facet of the upper dislocated vertebra over the superior facet of the vertebra below (Allen B.L.Jr., 1982; Razack N. et al., 2000). The facet dislocations of the lower cervical spine represent from 4% to 50% of... [to full text]
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Quarrington, Ryan David. "Towards Understanding the Injury Mechanics and Clinical Outcomes of Traumatic Subaxial Cervical Facet Dislocation and Fracture-Dislocation." Thesis, 2018. http://hdl.handle.net/2440/120294.

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Despite potentially devastating outcomes, the injury mechanisms of traumatic subaxial cervical facet dislocation (CFD) and fracture-dislocation (CFD+Fx) are not well understood and have not been reliably produced in biomechanical testing. In particular, bilateral CFD (BFD) with concomitant facet fracture (BFD+Fx) has not been produced experimentally, possibly due to a lack of neck muscle replication. Muscle activation may impose intervertebral compression and anterior shear during injury, increasing loading of the facets and preventing isolated dislocation via intervertebral separation – such separation has been observed during inertially-produced CFD. The mechanical behaviour of the facets during these scenarios, and the effect of axial distraction on the risk of facet fracture or dislocation, have not been investigated. The aim of this thesis was to improve understanding of the epidemiology, clinical outcomes, and injury mechanisms of CFD and CFD+Fx, and to investigate the biomechanics underlying the injury. In Study 1, a large-cohort medical record and radiographic review of subaxial cervical subluxations, dislocations, and fracture-dislocations presenting at an Australian tertiary hospital over the decade to 2014 was performed. Two primary injury causations were identified: motor vehicle accidents in younger adults, and falls in the elderly. BFD frequently caused spinal cord injury (SCI) and concomitant facet fracture was common. The C6/C7 vertebral level was most commonly involved, and injury to this level most often caused SCI. In Study 2, the bilateral inferior facets of 31 isolated human cadaver subaxial cervical vertebrae (6×C3, C4, C5, and C7, 7×C6) were loaded quasi-statically in simulated supraphysiologic anterior shear and compressive-flexion directions using a materials testing machine – these motions are thought to be associated with BFD. Facet stiffness and failure load were significantly greater in the simulated compressive-flexion loading direction, and sub-failure deflection and surface strains were higher in anterior shear. Facet tip fractures occurred during anterior shear loading, while failure through the pedicles was most common in compressive-flexion. In Study 3, the effect of intervertebral axial separation on human cadaver C6 inferior facet biomechanics during non-destructive anterior shear, axial rotation, flexion, and lateral bending motions of twelve C6/C7 functional spinal units (FSUs) was investigated. Axial compression generally increased facet deflection and strains, when compared to intervertebral distraction. In Study 4, a method was developed to reliably apply 20 mm of constrained anterior shear motion with superimposed intervertebral axial compression or distraction to twelve human cadaver cervical FSUs in a materials testing machine. The effect of superimposed axial compression vs distraction on the type of fractures observed was assessed for the subset of specimens that successfully achieved 20 mm of anterior shear. BFD+Fx was produced in five of 12 specimens, of which three had axial compression superimposed. The mechanical behaviour of the C6 inferior facets at the point of initial anatomical failure did not appear to be affected by intervertebral axial separation. This thesis presents the first large-cohort clinical investigation of CFD and provides quantitative information about the biomechanical response of the subaxial cervical facets to simulated traumatic loading. Axial compression generally increased facet surface strains and deflections when superimposed on intervertebral motions, and constrained intervertebral anterior shear can produce BFD+Fx. It is anticipated that this thesis will inform the development of improved preventative measures and provide data for the validation of models of cervical trauma.
Thesis (Ph.D.) -- University of Adelaide, School of Mechanical Engineering, 2018
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Книги з теми "Cervical facet dislocation"

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Chapman, Jens R., and Richard J. Bransford. Emergency management of the traumatized cervical spine. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780199550647.003.012038.

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♦ Unconscious patients should have CT scan of neck♦ Emergency MRI if possible in spinal cord injury♦ Avoid flexion/extension views if possible♦ In spinal shock avoid over transfusion and consider epinephrine; high dose steroids probably not indicated♦ Reduce dislocation acutely (MRI before in intact patients if possible)♦ Do not put distraction injury into traction♦ Urgent surgery for traumatic disc hernaition, expanding epidural haematoma, depressed lamina fracture or complex facet fractures with dislocation.
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Частини книг з теми "Cervical facet dislocation"

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Eseonu, Kelechi, and Nicolas Beresford-Cleary. "Cervical Facet Fracture/Dislocation." In Spine Surgery Vivas for the FRCS (Tr & Orth), 19–24. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/9781003201304-7.

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Kaufman, Brian E., John A. Heydemann, and Suken A. Shah. "Unilateral Cervical Facet Fracture-Dislocation." In Pediatric Orthopedic Trauma Case Atlas, 439–43. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-319-29980-8_70.

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Kaufman, Brian E., John A. Heydemann, and Suken A. Shah. "Unilateral Cervical Facet Fracture-Dislocation." In Pediatric Orthopedic Trauma Case Atlas, 1–5. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-28226-8_70-1.

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Klineberg, Eric, and Munish Gupta. "Cervical Open Posterior Reduction of Facet Dislocation." In Spine Trauma, 163–69. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-03694-1_12.

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Le, Anh X. "Open Anterior Reduction of Cervical Facet Dislocation." In Spine Trauma, 171–75. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-03694-1_13.

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Lee, Young M., Joseph Osorio, and Sanjay Dhall. "Cervical Traumatic Deformity (Bilateral Facet Dislocation) Complication." In Spinal Deformity, 53–57. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-60083-3_7.

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Klezl, Zdenek, Navjot Singh Bhangoo, and Jan Stulik. "Treatment of Cervical Facet Subluxations, Dislocations and Fracture-Dislocations." In European Instructional Lectures, 65–88. Berlin, Heidelberg: Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-46287-4_7.

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Riesenburger, Ron, Simcha J. Weller, Sait Naderi, Mina G. Safain, and Edward C. Benzel. "Cervical Facet Dislocation." In Benzel's Spine Surgery, 2-Volume Set, 1148–53. Elsevier, 2017. http://dx.doi.org/10.1016/b978-0-323-40030-5.00130-1.

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"8 Cervical Facet Dislocation." In Decision Making in Spinal Care, edited by Greg Anderson and Alexander R. Vaccaro. Stuttgart: Georg Thieme Verlag, 2007. http://dx.doi.org/10.1055/b-0034-56299.

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"14 Cervical Facet Dislocation." In Atlas of Emergency Neurosurgery, edited by Jamie S. Ullman and P. B. Raksin. Stuttgart: Georg Thieme Verlag, 2015. http://dx.doi.org/10.1055/b-0035-121760.

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Тези доповідей конференцій з теми "Cervical facet dislocation"

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McLachlin, Stewart D., Parham Rasoulinejad, Kevin R. Gurr, Stewart I. Bailey, Chris S. Bailey, and Cynthia E. Dunning. "Sub-Axial Cervical Spine Instability Following Unilateral Facet Injury: A Biomechanical Analysis." In ASME 2010 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2010. http://dx.doi.org/10.1115/sbc2010-19377.

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Unilateral facet injuries are relatively common in the sub-axial cervical spine. Facet fractures, capsular disruptions, and posterior ligament tears can all contribute to this type of injury resulting in a range of instability spanning undisplaced fractures to complete unilateral dislocations [1]. For a particular injury pattern, considerable variability exists in the choice of treatment, and the modality selected is frequently based on surgeon preference [2]. This is due, in part, to a lack of biomechanical studies focused on increasing the understanding of changes in spinal stability that occur following cervical spine injury.
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Lim, Tae-Hong, Howard S. An, Young Do Koh, and Linda M. McGrady. "A Biomechanical Comparison Between Modern Anterior Versus Posterior Plate Fixation of Unstable Cervical Spine Injuries." In ASME 1997 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/imece1997-0306.

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Abstract Unstable cervical spine injuries include flexion-distraction injuries with unilateral or bilateral facet dislocations and burst fracture of the vertebral body. These unstable injuries have been treated in various ways. For instance, various posterior fixation methods have been available, and particularly plating with lateral mass screws was proved to provide a rigid fixation. However, most cervical decompressions need to be performed anteriorly because the majority of compression is caused by either vertebral body retro-pulsion or herniated disc material (anterior structure). Anterior plating technique was recently introduced and employed for the surgical treatment of unstable injuries. Anterior plating is thought to offer an acceptable stability through a single surgical approach, but additional posterior fixation is frequently recommend to achieve a sufficient stability. There is a paucity of data on a direct biomechanical comparison of the stiffness provided by modern anterior, posterior, or combined plate-screw fixation in a human cadaveric cervical spine model. The purpose of this study was to compare the biomechanical characteristics of anterior vs posterior plating constructs and to evaluate the stiffness of a combined anterior-posterior fixation construct in a clinically simulated flexion-distraction injury and burst fracture models of the cervical spine.
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