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Interbody fusion device

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https://www.readbyqxmd.com/read/29433006/strains-in-trussed-spine-interbody-fusion-implants-are-modulated-by-load-and-design
#1
Jason P Caffrey, Eloy Alonso, Koichi Masuda, Jessee P Hunt, Cameron N Carmody, Timothy M Ganey, Robert L Sah
Titanium cages with 3-D printed trussed open-space architectures may provide an opportunity to deliver targeted mechanical behavior in spine interbody fusion devices. The ability to control mechanical strain, at levels known to stimulate an osteogenic response, to the fusion site could lead to development of optimized therapeutic implants that improve clinical outcomes. In this study, cages of varying design (1.00 mm or 0.75 mm diameter struts) were mechanically characterized and compared for multiple compressive load magnitudes in order to determine what impact certain design variables had on localized strain...
February 3, 2018: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29417771/-comparison-of-clinical-effects-between-anterior-cervical-zero-incision-fusion-system-and-traditional-nail-plate-system-in-the-treatment-of-cervical-spondylotic-myelopathy
#2
Bu-Qing Chang, Hu Feng, Chao-Jiang Yu, Kai Huang, Xiao Gao, Hao Tang, Yun-Chang Jiang
OBJECTIVE: To compare the short-term efficacy of anterior cervical discectomy and fusion(ACDF) with traditional nail plate system and Zero-profile device in the treatment of cervical spondylotic myelopathy(CSM). METHODS: The clinical data of 45 patients with CSM treated from July 2014 to August 2015 was retrospectively analyzed. There were 23 males and 22 females with an average age of 53.7 years old(range, 32 to 71 years old). The course of disease was 5 months to 2 years...
May 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29414477/effect-of-porous-orthopaedic-implant-material-and-structure-on-load-sharing-with-simulated-bone-ingrowth-a-finite-element-analysis-comparing-titanium-and-peek
#3
R Dana Carpenter, Brett S Klosterhoff, F Brennan Torstrick, Kevin T Foley, J Kenneth Burkus, Christopher S D Lee, Ken Gall, Robert E Guldberg, David L Safranski
Osseointegration of load-bearing orthopaedic implants, including interbody fusion devices, is critical to long-term biomechanical functionality. Mechanical loads are a key regulator of bone tissue remodeling and maintenance, and stress-shielding due to metal orthopaedic implants being much stiffer than bone has been implicated in clinical observations of long-term bone loss in tissue adjacent to implants. Porous features that accommodate bone ingrowth have improved implant fixation in the short term, but long-term retrieval studies have sometimes demonstrated limited, superficial ingrowth into the pore layer of metal implants and aseptic loosening remains a problem for a subset of patients...
January 30, 2018: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29383282/a-posttraumatic-distal-radius-allograft-10-years-follow-up
#4
Giulio Lauri, Marco Biondi, Giuliana Roselli, Prospero Bigazzi
Background  Wrist osteoarthritis is a common disease often resulting from malunited fractures of the distal radius. The primary treatment purpose is to provide pain relief, while maintaining strength and mobility whenever possible. In a patient presenting a posttraumatic degeneration of the wrist, deciding which surgical technique, which joints to sacrifice and which to preserve is crucial to optimizing the outcome. Case Description  We describe a 10-year follow-up of an osteoarticular allograft of the distal radius proposed to treat an isolated distal radius posttraumatic degeneration...
February 2018: Journal of Wrist Surgery
https://www.readbyqxmd.com/read/29366985/impaction-durability-of-porous-peek-and-titanium-coated-peek-interbody-fusion-devices
#5
F Brennan Torstrick, Brett S Klosterhoff, L Erik Westerlund, Kevin T Foley, Joanna Gochuico, Christopher S D Lee, Ken Gall, David L Safranski
BACKGROUND CONTEXT: Various surface modifications, often incorporating roughened or porous surfaces, have recently been introduced to enhance osseointegration of interbody fusion devices. However, these topographical features can be vulnerable to damage during clinical impaction. Despite the potential negative impact of surface damage on clinical outcomes, current testing standards do not replicate clinically relevant impaction loading conditions. PURPOSE: The purpose of this study was to compare the impaction durability of conventional smooth PEEK cervical interbody fusion devices with two surface-modified PEEK devices that feature either a porous structure or plasma-sprayed titanium coating...
January 20, 2018: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29354737/a-radiographic-follow-up-study-of-stand-alone-cage-and-graft-plate-constructs-for-single-level-anterior-cervical-discectomy-and-fusion
#6
Joseph F Baker, Jaime Gomez, Kartik Shenoy, Sarah Kim, Afshin Razi, Yong Kim
Background: Anterior cervical discectomy and fusion (ACDF) may be performed using an interbody cage or graft with an anterior plate or with a stand-alone (SA) interbody device without the anterior plate. The pros and cons of each vary. This study examined the radiographic outcome of the two techniques with a focus on implant subsidence. Methods: A retrospective review of cases of singe level ACDF by a single surgeon was undertaken. Medical and radiographic records were reviewed to determine subsidence, pre- and post-operative segmental and total lordosis in cohorts of both stand-alone and graft-and-plate constructs...
December 2017: Journal of Spine Surgery (Hong Kong)
https://www.readbyqxmd.com/read/29279739/evaluation-of-two-novel-integrated-stand-alone-spacer-designs-compared-with-anterior-and-anterior-posterior-single-level-lumbar-fusion-techniques-an-in-vitro-biomechanical-investigation
#7
Craig A Kuhns, Jonathan A Harris, Mir M Hussain, Aditya Muzumdar, Brandon S Bucklen, Saif Khalil
Study Design: In vitro biomechanical investigation. Purpose: To compare the biomechanics of integrated three-screw and four-screw anterior interbody spacer devices and traditional techniques for treatment of degenerative disc disease. Overview of Literature: Biomechanical literature describes investigations of operative techniques and integrated devices with four dual-stacked, diverging interbody screws; four alternating, converging screws through a polyether-ether-ketone (PEEK) spacer; and four converging screws threaded within the PEEK spacer...
December 2017: Asian Spine Journal
https://www.readbyqxmd.com/read/29238643/factors-associated-with-clinical-outcomes-after-lumbar-interbody-fusion-with-a-porous-nitinol-implant
#8
Fahad H Abduljabbar, Asim M Makhdom, Mona Rajeh, Alisson R Tales, Jacob Mathew, Jean Ouellet, Michael Weber, Peter Jarzem
Study Design: A retrospective cohort study. Objective: The aim of this study is to assess the association of demographic and perioperative factors with clinical outcomes of lumbar interbody fusion with a porous nitinol (TiNi) implant for degenerative disc disease. Methods: Forty-one patients with degenerative lumbar disease were prospectively followed for a mean of 4.8 years. All patients were instrumented with porous TiNi interbody fusion devices...
December 2017: Global Spine Journal
https://www.readbyqxmd.com/read/29225416/getting-peek-to-stick-to-bone-the-development-of-porous-peek-for-interbody-fusion-devices
#9
F Brennan Torstrick, David L Safranski, J Kenneth Burkus, James L Chappuis, Christopher S D Lee, Robert E Guldberg, Ken Gall, Kathryn E Smith
Interbody fusion cages are routinely implanted during spinal fusion procedures to facilitate arthrodesis of a degenerated or unstable vertebral segment. Current cages are most commonly made from polyether-ether-ketone (PEEK) due to its favorable mechanical properties and imaging characteristics. However, the smooth surface of current PEEK cages may limit implant osseointegration and may inhibit successful fusion. We present the development and clinical application of the first commercially available porous PEEK fusion cage (COHERE®, Vertera, Inc...
September 2017: Techniques in Orthopaedics: TIO
https://www.readbyqxmd.com/read/29062822/stand-alone-anterior-lumbar-interbody-fusion-complications-and-perioperative-results
#10
Rodrigo Amaral, Ronaldo Ferreira, Luis Marchi, Rubens Jensen, Joes Nogueira-Neto, Luiz Pimenta
OBJECTIVES: Historically, anterior lumbar interbody fusion (ALIF) was related to high rates of intraoperative complications and adverse events related to interbody devices. In recent decades, there have been technical adjustments, and cages that are more suitable have emerged. The aim of this study is to evaluate the efficacy and complication rate of the use of stand-alone mini-ALIF using a self-locking cage. METHODS: Retrospective single center study. Inclusion criteria: retroperitoneal mini-ALIF for single-level fusion (L5S1); self-locking cage; DDD/stenosis and grade I spondylolisthesis...
September 2017: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/29049131/comparison-of-surgical-outcomes-narcotics-utilization-and-costs-after-an-anterior-cervical-discectomy-and-fusion-stand-alone-cage-versus-anterior-plating
#11
Ehsan Tabaraee, Junyoung Ahn, Daniel D Bohl, Michael J Collins, Dustin H Massel, Khaled Aboushaala, Kern Singh
STUDY DESIGN: Retrospective cohort analysis of a prospectively maintained registry. OBJECTIVE: To compare the surgical outcomes, narcotic utilization, and costs between a stand-alone (SA) cage and anterior plating (AP) with an interbody device for 1-level anterior cervical discectomy and fusion (ACDF). BACKGROUND DATA: ACDF with a SA cage has gained popularity as a potential alternative to anterior cervical plating. Few studies have compared the surgical outcomes, narcotic utilization, and costs of ACDF utilizing a SA cage versus AP with an interbody device...
November 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/29042769/bioabsorbable-self-retaining-pla-nano-sized-%C3%AE-tcp-cervical-spine-interbody-fusion-cage-in-goat-models-an-in-vivo-study
#12
Lu Cao, Qian Chen, Li-Bo Jiang, Xiao-Fan Yin, Chong Bian, Hui-Ren Wang, Yi-Qun Ma, Xiang-Qian Li, Xi-Lei Li, Jian Dong
STUDY DESIGN: This is an experimental animal study. OBJECTIVE: The objective of this study was to compare an anterior cervical discectomy and interbody fusion of a novel polylactide/nano-sized β-tricalcium phosphate (PLA/nβ-TCP) bioabsorbable self-retaining cervical fusion cage (BCFC) with an autologous bone graft and polyetheretherketone (PEEK) cages. BACKGROUND: Although PLA cervical cages have potential advantages compared with traditional materials, they are not currently routinely used in spine surgery because of undesirable effects such as the lack of osteoconductivity and osteolysis around the implant...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28989848/biomechanical-stability-of-a-stand-alone-interbody-spacer-in-two-level-and-hybrid-cervical-fusion-constructs
#13
Daniel G Kang, Scott C Wagner, Robert W Tracey, John P Cody, Rachel E Gaume, Ronald A Lehman
STUDY DESIGN: In vitro human cadaveric biomechanical analysis. OBJECTIVE: To evaluate the segmental stability of a stand-alone spacer (SAS) device compared with the traditional anterior cervical plate (ACP) construct in the setting of a 2-level cervical fusion construct or as a hybrid construct adjacent to a previous 1-level ACP construct. METHODS: Twelve human cadaveric cervical spines (C2-T1) were nondestructively tested with a custom 6-degree-of-freedom spine simulator under axial rotation (AR), flexion-extension (FE), and lateral bending (LB) at 1...
October 2017: Global Spine Journal
https://www.readbyqxmd.com/read/28958177/use-of-minimally-invasive-spine-surgical-instruments-for-the-treatment-of-bone-tumors
#14
Russell A Reeves, Matthew C DeWolf, Peter J Shaughnessy, James B Ames, Eric R Henderson
Orthopedic oncologists often encounter patients with minor bony lesions that are difficult to access surgically and therefore require large exposures out of proportion to the severity of disease that confer significant patient morbidity. Minimally invasive surgical techniques offer the advantage of smaller incisions, shorter operative times, decreased tissue damage, and decreased costs. A variety of surgical procedures have emerged using minimally invasive technologies, particularly in the field of spine surgery...
October 4, 2017: Expert Review of Medical Devices
https://www.readbyqxmd.com/read/28770402/kinematic-efficacy-of-supplemental-anterior-lumbar-interbody-fusion-at-lumbosacral-levels-in-thoracolumbosacral-deformity-correction-with-and-without-pedicle-subtraction-osteotomy-at-l3-an-in-vitro-cadaveric-study
#15
Benny T Dahl, Jonathan A Harris, Manasa Gudipally, Mark Moldavsky, Saif Khalil, Brandon S Bucklen
PURPOSE: Pedicle subtraction osteotomy (PSO) is performed to treat rigid, sagittal spinal deformities, but high rates of implant failure are reported. Anterior lumbar interbody fusion has been proposed to reduce this risk, but biomechanical investigation is lacking. The goal of this study was to quantify the (1) destabilizing effects of a lumbar osteotomy and (2) contribution of anterior lumbar interbody fusion (ALIF) at the lumbosacral junction as recommended in literature. METHODS: Fourteen fresh human thoracolumbosacral spines (T12-S1) were tested in flexion-extension (FE), lateral bending (LB), and axial rotation (AR)...
November 2017: European Spine Journal
https://www.readbyqxmd.com/read/28765797/radiographic-analysis-of-cervical-and-spinal-alignment-in-multilevel-acdf-with-lordotic-interbody-device
#16
Yoshihiro Katsuura, Alex Lemons, Eileen Lorenz, Rachel Swafford, James Osborn, Garrick Cason
BACKGROUND: Restoration and maintenance of cervical lordosis is an important clinical parameter in spine surgery. The purpose of this study was to determine the extent to which a multilevel anterior cervical discectomy and fusion (ACDF: greater than 3 levels) procedure restores cervical lordosis and the affect of increasing lordosis on sagittal vertical axis. METHODS: We performed a retrospective radiographic analysis of 69 patients who underwent multilevel ACDF by 2 surgeons between 2013 and 2014...
2017: International Journal of Spine Surgery
https://www.readbyqxmd.com/read/28760032/minimally-invasive-transforaminal-lumbar-interbody-fusion-with-expandable-versus-static-interbody-devices-radiographic-assessment-of-sagittal-segmental-and-pelvic-parameters
#17
Ammar H Hawasli, Jawad M Khalifeh, Ajay Chatrath, Chester K Yarbrough, Wilson Z Ray
OBJECTIVE Minimally invasive transforaminal lumbar interbody fusion (MIS-TLIF) has been adopted as an alternative technique to hasten recovery and minimize postoperative morbidity. Advances in instrumentation technologies and operative techniques have evolved to maximize patient outcomes as well as radiographic results. The development of expandable interbody devices allows a surgeon to perform MIS-TLIF with minimal tissue disruption. However, sagittal segmental and pelvic radiographic outcomes after MIS-TLIF with expandable interbody devices are not well characterized...
August 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28751242/evaluation-of-a-peek-titanium-composite-interbody-spacer-in-an-ovine-lumbar-interbody-fusion-model-a-biomechanical-micro-computed-tomography-and-histologic-analyses
#18
Kirk C McGilvray, Erik I Waldorff, Jeremiah Easley, Howard B Seim, Nianli Zhang, Raymond J Linovitz, James T Ryaby, Christian M Puttlitz
BACKGROUND CONTEXT: The most commonly used materials used for interbody cages are titanium metal and polymer polyetheretherketone (PEEK). Both of these materials have demonstrated good biocompatibility. A major disadvantage associated with solid titanium cages is their radiopacity, limiting post-operative monitoring of spinal fusion via standard imaging modalities. However, PEEK is radiolucent, allowing for temporal assessment of the fusion mass by clinicians. On the other hand, PEEK is hydrophobic, which can limit bony in-growth...
July 24, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28736113/titanium-vs-polyetheretherketone-peek-interbody-fusion-meta-analysis-and-review-of-the-literature
#19
REVIEW
Scott Seaman, Panagiotis Kerezoudis, Mohamad Bydon, James C Torner, Patrick W Hitchon
Spinal interbody fusion is a standard and accepted method for spinal fusion. Interbody fusion devices include titanium (Ti) and polyetheretherketone (PEEK) cages with distinct biomechanical properties. Titanium and PEEK cages have been evaluated in the cervical and lumbar spine, with conflicting results in bony fusion and subsidence. Using Preferred Reporting Items for Systematic reviews and Meta-analyses (PRISMA) guidelines, we reviewed the available literature evaluating Ti and PEEK cages to assess subsidence and fusion rates...
October 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28735135/endoscope-assisted-abscess-drainage-secondary-to-endoscope-assisted-transforaminal-lumbar-interbody-fusion-1-year-follow-up
#20
Karthik Madhavan, Steven Shelby Burks, Lee Onn Chieng, Anand Veeravagu, Michael Y Wang
INTRODUCTION: Endoscopic discectomy and fusions have been gaining popularity in the recent past and are noted to be safe for their application in elderly population. The procedure involves ultra-small incision for discectomy followed by placement of percutaneous screws in awake patients. Treatment of advanced spinal pathology with endoscope-assisted techniques is challenging. Although not common with the endoscopic approach, postoperative infection can be problematic, as there are no established guidelines on its management...
November 2017: World Neurosurgery
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