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cervical disc arthroplasty

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https://www.readbyqxmd.com/read/28378073/kinematics-of-cervical-segments-c5-c6-in-axial-rotation-before-and-after-total-disc-arthroplasty
#1
Martin Michael Wachowski, Jan Weiland, Markus Wagner, Riccardo Gezzi, Dietmar Kubein-Meesenburg, Hans Nägerl
PURPOSE: The kinematical properties of C5/C6 segments in axial rotation are evaluated before and after total disc arthroplasty (TDA) with PRESTIGE(®)-and BRYAN(®) Cervical Disc (Medtronic) under flexion/extension as parameters and compared with those of C3/C4. METHODS: Eight human segments were stimulated by triangularly varying, axially directed torque (T z(t)) under compressing static axial preloads. Using a 6D-measuring device with high resolution, the response of segmental motion was characterized by the instantaneous helical axis (IHA)...
April 4, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28358860/discover-cervical-disc-arthroplasty-versus-anterior-cervical-discectomy-and-fusion-in-symptomatic-cervical-disc-diseases-a-meta-analysis
#2
Lei Shangguan, Guang-Zhi Ning, Yu Tang, Zhe Wang, Zhuo-Jing Luo, Yue Zhou
OBJECTIVE: Symptomatic cervical disc disease (SCDD) is a common degenerative disease, and Discover artificial cervical disc, a new-generation nonconstrained artificial disk, has been developed and performed gradually to treat it. We performed this meta-analysis to compare the efficacy and safety between Discover cervical disc arthroplasty (DCDA) and anterior cervical discectomy and fusion (ACDF) for SCDD. METHODS: An exhaustive literature search of PubMed, EMBASE, and the Cochrane Library was conducted to identify randomized controlled trials that compared DCDA with ACDF for patients suffering SCDD...
2017: PloS One
https://www.readbyqxmd.com/read/28357067/mid-term-efficacy-and-safety-of-cervical-disc-arthroplasty-versus-fusion-in-cervical-spondylosis-a-systematic-review-and-meta-analysis
#3
Guo-Sheng Zhao, Qiao Zhang, Zheng-Xue Quan
Anterior cervical discectomy and fusion (ACDF) and cervical disc arthroplasty (CDA) are the most commonly used procedures in cervical spondylosis. However, only a few published studies exist in the literature comparing these two operation types, particularly its mid-term efficacy and safety. Furthermore, in those studies, even large sample trials, when compared, have elicited controversial results, making it inconvenient for clinicians to refer to them. The aim of the present study was to clarify the advantages and shortcomings of the two procedures...
February 2017: Biomedical Reports
https://www.readbyqxmd.com/read/28353143/cervical-disc-replacement-surgery-biomechanical-properties-postoperative-motion-and-postoperative-activity-levels
#4
REVIEW
Alfred Pisano, Melvin Helgeson
PURPOSE OF REVIEW: Cervical disc arthroplasty (CDA) is an evolving technique used in the treatment of cervical disc disease. To remain up to date on studies regarding its efficacy, we sought to answer three questions: What do biomechanical studies demonstrate in regard to the kinematics of CDA? How does CDA affect cervical motion? What are the postoperative activity levels of patients after cervical disc arthroplasty? RECENT FINDINGS: 1) In regard to biomechanics, recent data suggests that CDA maintains motion while possibly altering facet biomechanics...
March 28, 2017: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/28343045/cervical-disc-arthroplasty-do-conflicts-of-interest-influence-the-outcome-of-clinical-studies
#5
REVIEW
Ankur S Narain, Fady Y Hijji, Kelly H Yom, Krishna T Kudaravalli, Kern Singh
BACKGROUND CONTEXT: Cervical disc arthroplasty (CDA) is an emerging technique for the treatment of cervical degenerative disease. Multiple studies have investigated the outcomes of CDA, particularly in comparison with cervical arthrodesis techniques such as anterior cervical discectomy and fusion (ACDF). As many entities have financial interests in CDA implants, it is imperative to consider the influence of conflicts of interest on the results of studies investigating the efficacy of CDA...
March 22, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28337729/adjacent-level-disease-background-and-update-based-on-disc-replacement-data
#6
REVIEW
I David Kaye, Alan S Hilibrand
PURPOSE OF REVIEW: The precise etiology of adjacent segment disease following cervical spine surgery is controversial. Theories for development include inevitable changes secondary to the natural progression of the degenerative cascade and changes secondary to altered biomechanics of the fused cervical spine. Motion preserving techniques, such as cervical disc arthroplasties (CDA), have been introduced with the hopes of reducing the rates of adjacent segment pathology. Recently, 7-year data from the investigational device exemption (IDE) studies have been published...
March 23, 2017: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/28304237/cervical-disc-arthroplasty-with-the-prestige-lp-disc-versus-anterior-cervical-discectomy-and-fusion-at-2-levels-results-of-a-prospective-multicenter-randomized-controlled-clinical-trial-at-24-months
#7
Matthew F Gornet, Todd H Lanman, J Kenneth Burkus, Scott D Hodges, Jeffrey R McConnell, Randall F Dryer, Anne G Copay, Hui Nian, Frank E Harrell
OBJECTIVE The authors compared the efficacy and safety of arthroplasty using the Prestige LP cervical disc with those of anterior cervical discectomy and fusion (ACDF) for the treatment of degenerative disc disease (DDD) at 2 adjacent levels. METHODS Patients from 30 investigational sites were randomized to 1 of 2 groups: investigational patients (209) underwent arthroplasty using a Prestige LP artificial disc, and control patients (188) underwent ACDF with a cortical ring allograft and anterior cervical plate...
March 17, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28291414/is-cervical-disc-arthroplasty-good-for-congenital-cervical-stenosis
#8
Peng-Yuan Chang, Hsuan-Kan Chang, Jau-Ching Wu, Wen-Cheng Huang, Li-Yu Fay, Tsung-Hsi Tu, Ching-Lan Wu, Henrich Cheng
OBJECTIVE Cervical disc arthroplasty (CDA) has been demonstrated to be as safe and effective as anterior cervical discectomy and fusion (ACDF) in the management of 1- and 2-level degenerative disc disease (DDD). However, there has been a lack of data to address the fundamental discrepancy between the two surgeries (CDA vs ACDF), and preservation versus elimination of motion, in the management of cervical myelopathy associated with congenital cervical stenosis (CCS). Although younger patients tend to benefit more from motion preservation, it is uncertain if CCS caused by multilevel DDD can be treated safely with CDA...
March 10, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28290960/outcomes-following-multilevel-cervical-disc-arthroplasty-in-the-young-active-population
#9
Nicholas J Zarkadis, Andrew W Cleveland, Nicholas A Kusnezov, John C Dunn, Pedro M Caram, Joshua P Herzog
BACKGROUND: Cervical radiculopathy is a common disorder that portends significant morbidity. The presence of radiculopathy can have a debilitating effect on patients as well as a significant economic impact. Active duty military patients with increased physical occupational demands can be significantly impacted by cervical disease. The resulting disability can have a strong negative impact on operational readiness. Several studies have demonstrated comparably good functional outcomes between cervical disc arthroplasty (CDA) and anterior cervical discectomy and fusion for single-level disease...
March 2017: Military Medicine
https://www.readbyqxmd.com/read/28272256/a-morphometric-study-of-the-middle-and-lower-cervical-vertebral-endplates-and-their-components
#10
Hang Feng, Xiang-Yi Fang, Da-Geng Huang, Cheng-Cheng Yu, Hou-Kun Li, Song-Chuan Zhao, Chao-Yuan Ge, Ru-Hai Bai, Ding-Jun Hao
Cervical disc arthroplasty is a common method of treating cervical degenerative disease. However, the footprints of most prosthesis dimensions are obtained from data of Caucasian individuals. Besides, there is a large discrepancy between footprints of currently available cervical disc prostheses and anatomic dimensions of cervical endplates. We aimed to detail the three-dimensional (3D) anatomic morphology of the subaxial cervical vertebral endplate, utilizing high-precision, high-resolution scanning equipment, and provide a theoretical basis for designing appropriate disc prostheses for Chinese patients...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28272237/risk-factors-for-dysphagia-after-anterior-cervical-spine-surgery-a-meta-analysis
#11
Feng-Yu Liu, Da-Long Yang, Wen-Zheng Huang, Li-Shuang Huo, Lei Ma, Hui Wang, Si-Dong Yang, Wen-Yuan Ding
BACKGROUND: Dysphagia is a well-known complication following anterior cervical spine surgery. Although risk factors for dysphagia have been reported in the literature, they still remain controversial. This study aims to investigate the risk factors associated with dysphagia following anterior cervical spinal surgery. METHODS: PubMed, EMBASE, and The Cochrane Library were searched up to June 2016 for studies examining dysphagia following anterior cervical spinal surgery...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28246009/clinical-and-radiographic-features-of-hybrid-surgery-for-the-treatment-of-skip-level-cervical-degenerative-disc-disease-a-minimum-24-month-follow-up
#12
Ting-Kui Wu, Bei-Yu Wang, Ding Cheng, Xin Rong, Ji-Gang Lou, Ying Hong, Hao Liu
We describe the radiographic changes of IS and investigate the safety and feasibility of hybrid surgery (HS) coupling cervical disc arthroplasty (CDA) and anterior cervical discectomy and fusion (ACDF) for the treatment of skip-level cervical degenerative disc disease (CDDD). Twenty-seven patients who received HS were retrospectively reviewed. Clinical evaluation based on the Japanese Orthopedic Association (JOA) and Neck Disability Index (NDI) and Visual Analog Scale (VAS) scores. Radiographic parameters included cervical alignment (CA), functional spine unite (FSU) angle of intermediated segment (IS), range of motion (ROM) and intervertebral disc height (IDH)...
February 25, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28245994/anterior-migration-after-bryan-cervical-disc-arthroplasty-the-relationship-between-hyperlordosis-and-its-impact-on-clinical-outcomes
#13
Tao Lei, Tong Tong, Dechao Miao, Xianda Gao, Jiaxin Xu, Di Zhang, Yong Shen
BACKGROUND: Various modifications have been tested to prevent kyphosis after Bryan cervical disc arthroplasty (CDA). However, the migration of Bryan prostheses has not been systematically studied. This study investigated the cause of anterior migration (AM) and assessed the effect of AM on clinical and radiographic outcomes. METHODS: We retrospectively reviewed 46 consecutive patients who underwent modified Bryan CDA between August 2006 and December 2010. We measured functional spinal unit (FSU), angle of operative disc space (AODS), range of motion (ROM), and sagittal alignment of cervical spine (SACS) preoperatively, postoperatively, and at the final follow-up, and compared these values between the AM and non-AM groups...
February 25, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28207657/3-tesla-kinematic-mri-of-the-cervical-spine-for-evaluation-of-adjacent-level-disease-after-monosegmental-anterior-cervical-discectomy-and-arthroplasty-results-of-2-year-follow-up
#14
Steffen K Fleck, Soenke Langner, Christian Rosenstengel, Rebecca Kessler, Marc Matthes, Jan-Uwe Müller, Inga Langner, Sascha Marx, Henry W S Schroeder
STUDY DESIGN: We prospectively evaluated adjacent disc levels after anterior cervical discectomy and arthroplasty (ACDA) using kinematic magnetic resonance imaging (MRI) and plain functional radiographs. OBJECTIVE: ACDA is an established treatment for degenerative cervical disc disease. The objective of this study was to evaluate the use of kinematic MRI for assessing the range of motion (ROM) before and after ACDA compared with plain functional radiographs and to evaluate adjacent degenerative disc disease (aDDD) at mid-term follow-up...
February 15, 2017: Spine
https://www.readbyqxmd.com/read/28207654/long-term-clinical-outcomes-of-cervical-disc-arthroplasty-a-prospective-randomized-controlled-trial
#15
Willa R Sasso, Joseph D Smucker, Maria P Sasso, Rick C Sasso
STUDY DESIGN: Prospective, randomized, single-center, clinical trial. OBJECTIVE: To prospectively examine the 7- and 10-year outcomes of cervical arthroplasty to anterior cervical discectomy and fusion (ACDF). SUMMARY OF BACKGROUND DATA: Degeneration of the cervical discs causing radiculopathy is a frequent source of surgical intervention, commonly treated with ACDF. Positive clinical outcomes are associated with arthrodesis techniques, yet there remains a long-term concern for adjacent segment change...
February 15, 2017: Spine
https://www.readbyqxmd.com/read/28198781/biomechanical-analysis-of-two-level-cervical-disc-replacement-with-a-stand-alone-u-shaped-disc-implant
#16
Yang Li, Guy R Fogel, Zhenhua Liao, Rajnesh Tyagi, Gaolong Zhang, Weiqiang Liu
STUDY DESIGN: Biomechanical study using a three-dimensional nonlinear finite element (FE) model. OBJECTIVE: To analyze biomechanical changes with three prostheses based on two-level arthroplasty and to verify the biomechanical efficiency of dynamic cervical implants (DCIs) with a stand-alone U-shaped structure. SUMMARY OF BACKGROUND DATA: Few studies have compared biomechanical behavior of various prostheses as they relate to clinical results after two-level total disc replacement (TDR)...
February 14, 2017: Spine
https://www.readbyqxmd.com/read/28178135/durability-of-cervical-disc-arthroplasties-and-its-influence-factors-a-systematic-review-and-a-network-meta-analysis
#17
REVIEW
Chao Chen, Xiaolin Zhang, Xinlong Ma
BACKGROUND: The durability of cervical disc arthroplasties (CDA) may vary significantly because of different designs and implanting techniques of the devices. Nevertheless, the comparative durability remains unknown. OBJECTIVES: We aimed to assess the durability of CDAs in at least 2-year follow-up. We analyzed the classifications and causes of secondary surgical procedures, as well as the structural designs of the devices that might influence the durability. METHODS: PubMed, Medline, Embase, and Cochrane Central Register of Controlled Trials were searched from the inception of each database to September 2015 using the following Keywords: "cervical disc replacement" OR "cervical disc arthroplasty" AND "randomized controlled trial (RCT)...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28149452/tmj-inferior-compartment-arthroplasty-procedure-through-a-25-year-follow-up-functional-arthroplasty
#18
Piero Cascone, Valerio Ramieri, Paolo Arangio, Valentino Vellone, Achille Tarsitano, Claudio Marchetti
OBJECTIVE: The purpose of this study was to assess the outcomes of temporomandibular joint (TMJ) "functional arthroplasty" on the inferior compartment and disc reposition as a surgical treatment for internal derangement (ID). PATIENTS AND METHODS: By retrospective chart review, all patients who had TMJ surgery on the inferior compartment for TMJ ID from 1985 to 2010 were identified. Their charts were reviewed and subjective data as well as objective data was collected...
July 2016: Annali di Stomatologia
https://www.readbyqxmd.com/read/28142281/adjacent-level-arthroplasty-following-cervical-fusion
#19
Deshpande V Rajakumar, Akshay Hari, Murali Krishna, Subhas Konar, Ankit Sharma
OBJECTIVE Adjacent-level disc degeneration following cervical fusion has been well reported. This condition poses a major treatment dilemma when it becomes symptomatic. The potential application of cervical arthroplasty to preserve motion in the affected segment is not well documented, with few studies in the literature. The authors present their initial experience of analyzing clinical and radiological results in such patients who were treated with arthroplasty for new or persistent arm and/or neck symptoms related to neural compression due to adjacent-segment disease after anterior cervical discectomy and fusion (ACDF)...
February 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28142280/can-segmental-mobility-be-increased-by-cervical-arthroplasty
#20
Hsuan-Kan Chang, Chih-Chang Chang, Tsung-Hsi Tu, Jau-Ching Wu, Wen-Cheng Huang, Li-Yu Fay, Peng-Yuan Chang, Ching-Lan Wu, Henrich Cheng
OBJECTIVE Many reports have successfully demonstrated that cervical disc arthroplasty (CDA) can preserve range of motion after 1- or 2-level discectomy. However, few studies have addressed the extent of changes in segmental mobility after CDA or their clinical correlations. METHODS Data from consecutive patients who underwent 1-level CDA were retrospectively reviewed. Indications for surgery were medically intractable degenerative disc disease and spondylosis. Clinical outcomes, including visual analog scale (VAS)-measured neck and arm pain, Neck Disability Index (NDI), and Japanese Orthopaedic Association (JOA) scores, were analyzed...
February 2017: Neurosurgical Focus
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