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cervical artificial disc

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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
#1
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/28272256/a-morphometric-study-of-the-middle-and-lower-cervical-vertebral-endplates-and-their-components
#2
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/28261429/radiological-parameters-of-undegenerated-cervical-vertebral-segments-in-a-korean-population
#3
Sung Hoon Choi, HeeSang Lee, Jae Hwan Cho, Jin Il Jung, Dong-Ho Lee
BACKGROUND: Several scoring systems for cervical disc and facet joint degeneration, using radiography or computed tomography, have been developed and tested for reliability. However, definitions of disc height and facet joint space narrowing vary. To our knowledge, no study has reported quantitative data for normal radiologic values of the cervical spine in the Korean population. The purpose of this study is to determine normal cervical disc height, disc height ratio, and facet joint space values, and investigate the correlation between demographic data and these values...
March 2017: Clinics in Orthopedic Surgery
https://www.readbyqxmd.com/read/28254671/are-patient-reported-outcomes-predictive-of-patient-satisfaction-five-years-after-anterior-cervical-spine-surgery
#4
Gregory D Schroeder, Dom Coric, Han Jo Kim, Todd J Albert, Kris E Radcliff
BACKGROUND CONTEXT: Patient satisfaction is becoming an increasing common proxy for surgical quality; however, the correlation between patient satisfaction and surgical outcomes two and five years after anterior cervical surgery has not been evaluated. PURPOSE: To determine if patient satisfaction is predicted by improvement in patient reported outcomes (PRO) two and five years after anterior cervical spine surgery. STUDY DESIGN: A retrospective analysis of prospectively collected data...
February 27, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28175519/345%C3%A2-elective-anterior-cervical-discectomy-and-fusion-vs-cervical-artificial-disc-replacement-a-comparison-of-perioperative-morbidity-and-early-outcomes
#5
Pavan S Upadhyayula, John K Yue, Reid Hoshide, Erik Curtis, Joseph D Ciacci
No abstract text is available yet for this article.
August 1, 2016: Neurosurgery
https://www.readbyqxmd.com/read/28142281/adjacent-level-arthroplasty-following-cervical-fusion
#6
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/28142258/bone-loss-of-vertebral-bodies-at-the-operative-segment-after-cervical-arthroplasty-a-potential-complication
#7
Dong Hwa Heo, Dong Chan Lee, Jong Yang Oh, Choon Keun Park
OBJECTIVE Bony overgrowth and spontaneous fusion are complications of cervical arthroplasty. In contrast, bone loss or bone remodeling of vertebral bodies at the operation segment after cervical arthroplasty has also been observed. The purpose of this study is to investigate a potential complication-bone loss of the anterior portion of the vertebral bodies at the surgically treated segment after cervical total disc replacement (TDR)-and discuss the clinical significance. METHODS All enrolled patients underwent follow-up for more than 24 months after cervical arthroplasty using the Baguera C disc...
February 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28142245/cervical-arthroplasty-what-does-the-labeling-say
#8
REVIEW
Mazda K Turel, Mena G Kerolus, Owoicho Adogwa, Vincent C Traynelis
OBJECTIVE The aim of this paper was to comprehensively review each of the Food and Drug Administration (FDA)-approved labels of 7 total cervical disc replacements, assess the exact methodology in which the trial was conducted, and provide a broad comparison of these devices to allow each surgeon to determine which disc best suits his or her specific treatment goals based on the specific labels and not the studies published. METHODS The FDA-approved labels for each of the 7 artificial discs were obtained from the official FDA website...
February 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28042725/stepwise-illustration-of-teeth-fixation-semi-constrained-cervical-disc-arthroplasty
#9
Chih-Chang Chang, Jau-Ching Wu, Peng-Yuan Chang, Mei-Yin Yeh, Yi-Hsuan Kuo, Li-Yu Fay, Tsung-Hsi Tu, Wen-Cheng Huang, Henrich Cheng
There are many kinds of artificial discs available for cervical disc arthroplasty (CDA), with various designs of fixation and articulation mechanisms. Each of these designs has different features and theoretically fits most optimally in selected types of patients. However, there has been insufficient literature to guide individualized selection among these CDA devices. Since CDA aims to restore the joint function rather than arthrodesis, tailor-made size, shape, and mechanical properties should be taken into account for each candidate's target disc...
January 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28042722/m6-c-artificial-disc-placement
#10
Domagoj Coric, John Parish, Margaret O Boltes
There has been a steady evolution of cervical total disc replacement (TDR) devices over the last decade resulting in surgical technique that closely mimics anterior cervical discectomy and fusion as well as disc design that emphasizes quality of motion. The M6-C TDR device is a modern-generation artificial disc composed of titanium endplates with tri-keel fixation as well as a polyethylene weave with a polyurethane core. Although not yet approved by the FDA, M6-C has finished a pilot and pivotal US Investigational Device Exemption (IDE) study...
January 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28042721/surgical-technique-for-revision-surgery-of-cervical-artificial-disc-replacements
#11
Julia Onken, Bernhard Meyer, Peter Vajkoczy
OBJECTIVE Cervical artificial disc replacement (C-ADR) is a widely used procedure with low risk at implantation. Few cases have been reported about the surgical techniques of C-ADR revision. The authors describe their surgical experience with the explantation of a Galileo C-ADR. METHODS Revision surgery was performed in a 58-year-old patient. Patient positioning and surgical opening techniques were performed as appropriate for anterior cervical decompression. RESULTS Revision surgery via the initial anterior approach was successful following an atraumatic removal of the implant...
January 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28042720/resection-of-uncovertebral-joints-and-posterior-longitudinal-ligament-for-cervical-disc-arthroplasty
#12
Tsung-Hsi Tu, Chih-Chang Chang, Jau-Ching Wu, Li-Yu Fay, Wen-Cheng Huang, Henrich Cheng
The most commonly accepted indications for cervical disc arthroplasty (CDA) are 1- and 2-level cervical disc herniation or spondylosis causing radiculopathy or myelopathy that is refractory to medical management. Unlike anterior cervical discectomy and fusion (ACDF), which eliminates motion, CDA aims to restore the physiological range of motion of the indexed joint. Thus, the effect of indirect decompression gained by the insertion of a sufficiently large interbody graft and incorporation into arthrodesis after ACDF cannot be duplicated for CDA...
January 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28032699/an-analysis-of-paravertebral-ossification-in-cervical-artificial-disc-replacement-a-novel-classification-based-on-computed-tomography
#13
Wei Tian, Ming-Xing Fan, Ya-Jun Liu, Xiao Han, Kai Yan, Han Wang, Yan-Wei Lyu
OBJECTIVE: Cervical artificial disc replacement (CADR) is a new technology in cervical spine surgery. However, CADR may result in paravertebral ossification (PO) after surgery and affect the mobility of the related spinal segments. The present widely used assessment method based on X-ray tomography cannot provide the position information of PO, and also PO detection rates by X-ray are low. The incidence of PO varies dramatically between studies. This study built a novel classification system based on cervical computer tomography (CT) scan to re-evaluate the incidence of PO and its influence on CADR, and also analyzed the predisposing factors of PO...
November 2016: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28002363/comparison-of-outcomes-of-single-level-anterior-cervical-discectomy-with-fusion-and-single-level-artificial-cervical-disc-replacement-for-single-level-cervical-degenerative-disc-disease
#14
Praveen Kumar Pandey, Inder Pawar, Jyoti Gupta, Raaghav Rai Verma
STUDY DESIGN: A single-center, prospective comparative study of prospectively collected outcomes, with a minimum 12 months follow-up. OBJECTIVES: The primary purpose of the study is to investigate the clinical, functional, and radiological outcomes of cervical total disc replacement (CTDR) in comparison with anterior cervical discectomy and fusion (ACDF) in the treatment of single-level cervical disc degenerative disease, prospectively. SUMMARY OF BACKGROUND DATA: CTDR has recently been an alternative to ACDF in cervical disc degenerative disease to preserve the motion at the treated level...
January 1, 2017: Spine
https://www.readbyqxmd.com/read/27939974/revision-surgeries-following-artificial-disc-replacement-of-cervical-spine
#15
Jong-Beom Park, Han Chang, Jin S Yeom, Kyung-Soo Suk, Dong-Ho Lee, Jae Chul Lee
OBJECTIVE: We investigated causes and results of revision surgeries after artificial disc replacement of cervical spine (C-ADR). METHODS: Twenty-one patients (mean age: 52.8) who underwent revision surgery after C-ADR and who had a minimum 2-year of follow-up were included into this study. The mean time between the primary and revision surgeries was 21 months. During their primary surgeries, 14 patients underwent single level C-ADR, 2 two-level C-ADR, and 5 two-level hybrid surgery for 16 radiculopathy, 3 myelopathy, and 2 adjacent segment diseases...
December 2016: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/27902945/artificial-cervical-disc-replacement-with-the-prestige-lp-prosthesis-for-the-treatment-of-non-contiguous-2-level-cervical-degenerative-disc-disease-a-minimum-24-month-follow-up
#16
Tingkui Wu, Beiyu Wang, Chen Ding, Yang Meng, Jigang Lou, Yi Yang, Hao Liu
OBJECTIVE: We describe the features of non-contiguous 2-level cervical degenerative disc disease (NCDDD), investigate the safety and feasibility of artificial cervical disc replacement (ACDR) for the treatment of NCDDD, and expect that our study will provide spine surgeons with an alternative procedure for NCDDD. METHODS: Twenty-five patients with NCDDD received ACDR with a Prestige-LP prosthesis. Clinical outcomes were evaluated using the 36-Short Form (SF-36, Mental Component Summary [MCS] and Physical Component Summary [PCS]), Visual Analog Scale (VAS), Japanese Orthopedic Association (JOA), and Neck Disability Index (NDI) scores...
January 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/27890691/minimum-four-year-subsequent-surgery-rates-of-cervical-disc-replacement-versus-fusion-a-meta-analysis-of-prospective-randomized-clinical-trials
#17
T K Wu, H Liu, B Y Wang, Y Meng
INSTRUCTION: Anterior cervical discectomy and fusion (ACDF) is a well-accepted surgical management strategy for radiculopathy and/or myelopathy. However, complications sometimes required subsequent surgery at the operated and adjacent levels. Artificial cervical disc replacement (ACDR) has been accepted as the most extensive non-fusion procedure and is designed to preserve motion. However, some specific complications can result in subsequent surgery, thus, attracting the attention of investigators...
November 24, 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/27888676/revision-surgery-for-cervical-artificial-disc-surgical-technique-and-clinical-results
#18
J Onken, A Reinke, J Radke, T Finger, S Bayerl, P Vajkoczy, B Meyer
OBJECTIVE: Cervical artificial disc replacement (C-ADR) was developed with the goal of preserving mobility of the cervical segment in patients with degenerative disc disease. So far, little is known about experiences with revision surgery and explantation of C-ADRs. Here, we report our experience with revision the third generation, Galileo-type disc prosthesis from a retrospective study of two institutions. PATIENTS AND METHODS: Between November 2008 and July 2016, 16 patients with prior implantation of C-ADR underwent removal of the Galileo-type disc prosthesis (Signus, Medizintechnik, Germany) due to a call back by industry...
January 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/27751923/return-to-sports-after-cervical-total-disc-replacement
#19
Andreas Reinke, Michael Behr, Alexander Preuss, Jimmy Villard, Bernhard Meyer, Florian Ringel
OBJECTIVE: Total disc replacement (TDR) is typically indicated in young patients with a cervical soft disc herniation. There are few data on the activity level of patients after cervical TDR, in particular from young patients who are expected to have a high activity level with frequent exercising. The expectation is that returning to active sports after cervical TDR is not restricted. METHODS: Fifty patients were treated with a monosegmental cervical TDR at our department between May 2006 and March 2012...
January 2017: World Neurosurgery
https://www.readbyqxmd.com/read/27713104/quantitative-morphometric-study-of-the-subaxial-cervical-vertebrae-end-plate
#20
Hang Feng, Xiangyi Fang, Dageng Huang, Chengcheng Yu, Songchuan Zhao, Dingjun Hao
BACKGROUND CONTEXT: Cervical disc arthroplasty has been gradually adopted as an alternative for the treatment of cervical degenerative disease. However, there is a large discrepancy between footprints of currently available cervical disc prostheses and anatomic dimensions of cervical end plates. PURPOSE: This study aimed to accurately and comprehensively quantify the three-dimensional (3D) anatomic morphology of the cervical vertebral end plate and provide a theoretical basis for designing appropriate disc prostheses...
October 3, 2016: Spine Journal: Official Journal of the North American Spine Society
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