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Interbody fusion device

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https://www.readbyqxmd.com/read/29652237/failure-of-facet-replacement-system-with-metal-on-metal-bearing-surface-and-subsequent-discovery-of-cobalt-allergy-report-of-2-cases
#1
Matthew L Goodwin, William Ryan Spiker, Darrel S Brodke, Brandon D Lawrence
The aim of this study was to report on 2 patients in whom metal-on-metal (MOM) facet replacements failed, with subsequent positive findings on allergy testing. Motion-preserving devices have been used with limited success when instrumentation is indicated in the mobile spine. MOM-bearing surfaces in orthopedics were developed to increase implant longevity, yet have been associated with numerous adverse outcomes, including local tissue reactions, pseudotumors, metallosis, and the need for revision surgery. Five patients with spinal stenosis and low-grade spondylolisthesis were randomized to undergo facet replacement surgery with the ACADIA facet replacement system at the authors' institution...
April 13, 2018: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29649611/predictors-of-adverse-discharge-disposition-in-adult-spinal-deformity-and-associated-costs
#2
Peter G Passias, Gregory W Poorman, Cole A Bortz, Rabia Qureshi, Bassel G Diebo, Justin C Paul, Samantha R Horn, Frank A Segreto, Alexandra Pyne, Cyrus M Jalai, Virginie Lafage, Shay Bess, Frank J Schwab, Hamid Hassanzadeh
BACKGROUND CONTEXT: With advances in the understanding of adult spinal deformity (ASD), more complex osteotomy and fusion techniques are being implemented with increasing frequency. Patients undergoing ASD corrections infrequently require extended acute care, longer inpatient stays, and are discharged to supervised care. Given the necessity of value-based health care, identification of clinical indicators for adverse discharge disposition in ASD surgeries is paramount. PURPOSE: On nationwide and surgeon-created databases, identify predictors of adverse discharge disposition after ASD surgeries and view corresponding differences in charges...
April 9, 2018: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29564921/hollow-modular-anchorage-hma-screws-for-anterior-transvertebral-fixation-in-high-grade-spondylolisthesis-cases-requiring-360-degrees-in-situ-fusion
#3
Matthias A König, Bronek M Boszczyk
OBJECTIVE: 360 degrees in-situ fusion for high-grade spondylolisthesis showed satisfying clinical long-term results. Combining anterior with posterior surgery increases fusion rates. Anteriorly inserted transvertebral HMA screws could be an alternative to strut graft constructs or cages, avoiding donor site complications. In addition, complete posterior muscle detachment is avoided and the injury risk of neural structures is minimized. This study investigates the use of HMA screws in this context...
March 22, 2018: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/29505853/use-of-motor-evoked-potentials-during-lateral-lumbar-interbody-fusion-reduces-postoperative-deficits
#4
Michael R Riley, Adam T Doan, Richard W Vogel, Alexander O Aguirre, Kayla S Pieri, Edward H Scheid
Background Context Intraoperative neurophysiological monitoring (IONM) has gained rather wide-spread acceptance as a method to mitigate risk to the lumbar plexus during Lateral Lumbar Interbody Fusion (LLIF) surgery. The most common approach to IONM involves using only electromyography (EMG) monitoring, and the rate of postoperative deficit remains unacceptably high. Other test modalities, such as transcranial electric motor-evoked potentials (tcMEPs) and somatosensory-evoked potentials (SSEPs), may be more suitable for monitoring neural integrity but they have not been widely adopted during LLIF...
March 2, 2018: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29496625/the-in-vivo-response-to-a-novel-ti-coating-compared-with-polyether-ether-ketone-evaluation-of-the-periphery-and-inner-surfaces-of-an-implant
#5
William Robert Walsh, Matthew H Pelletier, Chris Christou, Jiawei He, Frank Vizesi, Scott D Boden
BACKGROUND CONTEXT: Increasing bone ongrowth and ingrowth of polyether ether ketone (PEEK) interbody fusion devices has the potential to improve clinical outcomes. PURPOSE: This study evaluated the in vivo response of promoting new bone growth and bone apposition with NanoMetalene (NM) compared with PEEK alone in a cancellous implantation site with an empty aperture. STUDY DESIGN: This is a randomized control animal study. METHODS: Implants and funding for this study were provided by SeaSpine (60,000 USD)...
February 26, 2018: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29496624/bony-ingrowth-potential-of-3d-printed-porous-titanium-alloy-a-direct-comparison-of-interbody-cage-materials-in-an-in-vivo-ovine-lumbar-fusion-model
#6
Kirk McGilvray, Jeremiah Easley, Howard B Seim, Daniel Regan, Sigurd H Berven, Wellington K Hsu, Thomas E Mroz, Christian M Puttlitz
BACKGROUND CONTEXT: There is significant variability in the materials commonly used for interbody cages in spine surgery. It is theorized that 3-D printed interbody cages utilizing porous titanium material can provide more consistent bone ingrowth and biological fixation. PURPOSE: The purpose of this study was to provide an evidence-based approach to decision making regarding interbody materials for spinal fusion. STUDY DESIGN: Comparative animal study...
February 26, 2018: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29457388/-case-control-study-of-therapeutic-effects-between-extreme-lateral-interbody-fusion-and-conventional-posterior-operation-for-the-treatment-of-upper-lumbar-disc-herniation
#7
Can-Hua Xu, Zeng-Hui Wu, Rong-Chun Chen, Hong-Fa Zhong, Qing-Shun Zhang, Ning Liu, Bi Zhang
OBJECTIVE: To evaluate the clinical outcomes between extreme lateral interbody fusion and conventional posterior operation in the treatment of upper lumbar disc herniation. METHODS: Among 60 patients with upper lumbar disc herniation were treated with extreme lateral interbody fusion(XLIF) or conventional posterior operation from June 2010 to December 2014, 30 patients(19 males and 11 females) were treated with XLIF (XLIF group); and the other 30 patients(17 males and 13 females) were treated with conventional posterior operation (conventional group)...
November 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29433006/strains-in-trussed-spine-interbody-fusion-implants-are-modulated-by-load-and-design
#8
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
#9
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
#10
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
#11
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-polyether-ether-ketone-peek-and-titanium-coated-peek-interbody-fusion-devices
#12
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 polyether-ether-ketone (PEEK) cervical interbody fusion devices with two surface-modified PEEK devices that feature either a porous structure or plasma-sprayed titanium coating...
January 31, 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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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