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Cervical fusion

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https://www.readbyqxmd.com/read/28227237/fusion-of-inertial-and-magnetic-sensors-for-3d-position-and-orientation-estimation
#1
P Tadayon, T Felderhoff, A Knopp, G Staude, P Tadayon, T Felderhoff, A Knopp, G Staude, G Staude, P Tadayon, T Felderhoff, A Knopp
This paper presents a new method for 3D position and orientation estimation based on the magnetic field generated by a single coil and the fusion of low power magnetometers and inertial sensors. The fixed spatial relationship between the sensors is exploited to solve the ambiguity problem that occurs when only a single coil is employed. In this context a new positioning algorithm is developed and verified by simulations. Using a single coil instead of three coils as common in conventional magnetic field based systems brings a benefit both regarding power consumption and construction size...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28225364/preoperative-risk-factors-of-c5-nerve-root-palsy-after-laminectomy-and-fusion-in-patients-with-cervical-myelopathy-analysis-of-70-consecutive-patients
#2
Kyung-Soo Suk, Kyung-Chung Kang, Hak-Sun Kim, Seong-Hwan Moon, Hwan-Mo Lee, Jung-Ho Seo, Sung-Min Kim, Sung-Yub Jin, Pierre Mella
STUDY DESIGN: A retrospective study. OBJECTIVE: To identify preoperative risk factors causing cervical fifth nerve root palsy (C5 palsy) after laminectomy and fusion (LF). SUMMARY OF BACKGROUND DATA: It is well known that postoperative C5 palsy is not rare after cervical surgery. Although there remains controversy, C5 palsy is considered to be more common in patients who had LF than in those who had laminoplasty. However, the reason for the higher incidence of C5 palsy in patients with LF has been poorly understood...
February 20, 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28219364/the-relationship-between-changes-of-cervical-sagittal-alignment-after-anterior-cervical-discectomy-and-fusion-and-spino-pelvic-sagittal-alignment-under-roussouly-classification-a-four-year-follow-up-study
#3
Dong-Ning Huang, Miao Yu, Nan-Fang Xu, Mai Li, Shao-Bo Wang, Yu Sun, Liang Jiang, Feng Wei, Xiao-Guang Liu, Zhong-Jun Liu
BACKGROUND: Anterior cervical discectomy and fusion (ACDF) is widely used in the treatment of cervical degenerative disease; however, the variation of cervical sagittal alignment changes after ACDF has been rarely explored. The purpose of this study is to determine the relationship between changes of cervical sagittal alignment after ACDF and spino-pelvic sagittal alignment under Roussouly classification. METHODS: A cohort of 133 Chinese cervical spondylotic patients who received ACDF from 2011 to 2012 was recruited...
February 20, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28219354/relationship-between-facet-tropism-and-facet-joint-degeneration-in-the-sub-axial-cervical-spine
#4
Xin Rong, Ziyang Liu, Beiyu Wang, Xuelin Pan, Hao Liu
BACKGROUND: Facet tropism is the angular asymmetry between the left and right facet joint orientation. Although debatable, facet tropism was suggested to be associated with disc degeneration, facet degeneration and degenerative spondylolisthesis in the lumbar spine. The purpose of this study was to explore the relationship between facet tropism and facet degeneration in the sub-axial cervical spine. METHODS: A total of 200 patients with cervical spondylosis were retrospectively analyzed...
February 20, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28216748/comparison-of-occipitocervical-and-atlantoaxial-fusion-in-treatment-of-unstable-jefferson-fractures
#5
Yong Hu, Zhen-Shan Yuan, Christopher K Kepler, Wei-Xin Dong, Xiao-Yang Sun, Jiao Zhang
BACKGROUND: Controversy exists regarding the management of unstable Jefferson fractures, with some surgeons performing reduction and immobilization of the patient in a halo vest and others performing open reduction and internal fixation. This study compares the clinical and radiological outcome parameters between posterior atlantoaxial fusion (AAF) and occipitocervical fusion (OCF) constructs in the treatment of the unstable atlas fracture. MATERIALS AND METHODS: 68 consecutive patients with unstable Jefferson fractures treated by AAF or OCF between October 2004 and March 2011 were included in this retrospective evaluation from institutional databases...
January 2017: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/28216519/study-of-preoperative-3d-ct-angiography-of-uterine-artery-in-patients-with-uterine-cervical-cancer
#6
Hitoshi Fujioka, Tomoyasu Kato, Miyuki Sone, Tatsuya Horita, Shunsuke Sugawara, Shinsuke Tsukagoshi
Depiction of the fine vessel can provide useful preoperative information for patients with uterine cervical cancer. Although angiography can visualize vessels in detail, it is invasive. MR-angiography is a minimally invasive method to depict vessels, but the resolution of images is insufficient for preoperative evaluation. In this study, we used less invasive three-dimensional CT angiography (3D-CTA) and reconstructed images of adaptive iterative dose resolution 3D (AIDR 3D) with display field of view (D-FOV), which are suitable for arteries with large and small diameters, and created the fusion images...
2017: Nihon Hoshasen Gijutsu Gakkai Zasshi
https://www.readbyqxmd.com/read/28213693/erratum-to-impact-of-old-age-on-patient-report-outcomes-and-cost-utility-for-anterior-cervical-discectomy-and-fusion-surgery-for-degenerative-spine-disease
#7
Silky Chotai, Scott L Parker, J Alex Sielatycki, Ahilan Sivaganesan, Harrison F Kay, Joseph B Wick, Matthew J McGirt, Clinton J Devin
No abstract text is available yet for this article.
February 17, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28207668/impact-of-obesity-on-outcomes-in-adults-undergoing-elective-posterior-cervical-fusion
#8
Kevin Phan, Parth Kothari, Nathan J Lee, Sohaib Virk, Jun S Kim, Samuel K Cho
STUDY DESIGN: Retrospective study of prospectively collected data. OBJECTIVE: To determine the effect of obesity (body mass Index > 30) on postoperative morbidity and mortality after elective posterior cervical fusion in adults. SUMMARY OF BACKGROUND DATA: In those with spine disease, obesity has been shown to portend poorer general and disease-specific functional health status. The effect of obesity on outcomes after spine surgery, especially posterior cervical fusion, however, remains unclear...
February 15, 2017: Spine
https://www.readbyqxmd.com/read/28207667/differences-in-short-term-outcomes-between-primary-and-revision-anterior-cervical-discectomy-and-fusion
#9
Bryce A Basques, Nathaniel T Ondeck, Erik J Geiger, Andre M Samuel, Adam M Lukasiewicz, Matthew L Webb, Daniel D Bohl, Dustin H Massel, Benjamin C Mayo, Kern Singh, Jonathan N Grauer
STUDY DESIGN: Retrospective cohort study. OBJECTIVE: To compare short-term morbidity for primary and revision anterior cervical discectomy and fusion (ACDF). SUMMARY OF BACKGROUND DATA: Revision ACDF procedures are relatively common, yet their risks are poorly characterized in the literature. There is a need to assess the relative risk of revision ACDF procedures compared with primary surgery. METHODS: The prospectively collected American College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP) database was used to identify patients who underwent primary and revision ACDF from 2005 to 2014...
February 15, 2017: Spine
https://www.readbyqxmd.com/read/28207663/role-of-ethnicity-in-alignment-compensation-propensity-matched-analysis-of-differential-compensatory-mechanism-recruitment-patterns-for-sagittal-malalignment-in-288-asd-patients-from-japan-korea-and-united-states
#10
Bassel G Diebo, Isaac Gammal, Yoon Ha, Seung Hwan Yoon, Jae Won Chang, Byeongwoo Kim, Morio Matsumoto, Yu Yamato, Daisaku Takeuchi, Naobumi Hosogane, Mitsuru Yagi, Hiroshi Taneichi, Frank Schwab, Virginie Lafage, Christopher Ames
STUDY DESIGN: Retrospective review of adult spinal deformity patients in a multiethnic database. OBJECTIVE: To investigate the role of ethnicity on recruitment of compensatory mechanisms for sagittal spinal deformity. SUMMARY OF BACKGROUND DATA: While the impacts of age, sex, and pelvic morphology on the ability to compensate for sagittal malalignment have been investigated, the role of ethnicity in compensatory mechanism recruitment is poorly understood...
February 15, 2017: Spine
https://www.readbyqxmd.com/read/28207654/long-term-clinical-outcomes-of-cervical-disc-arthroplasty-a-prospective-randomized-controlled-trial
#11
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/28207536/cervical-plexus-anesthesia-versus-general-anesthesia-for-anterior-cervical-discectomy-and-fusion-surgery-a-randomized-clinical-trial
#12
Hui Wang, Lei Ma, Dalong Yang, Tao Wang, Qian Wang, Lijun Zhang, Wenyuan Ding
Both general anesthesia (GA) and cervical plexus anesthesia (CPA) can be used for anterior cervical discectomy and fusion (ACDF) surgery. The aim of this study was to evaluate the influence of anesthetic techniques on perioperative mortality and morbidity in patients undergoing cervical surgery.From January 2008 to December 2015, 356 patients who underwent 1-level ACDF for cervical spinal myelopathy were prospectively reviewed. They were assigned to receive GA (group A) and CPA (group B). The analgesic efficacy of the block was assessed by anesthesia preparation time, the maximum heart rate, and mean arterial blood pressure changes compared with the baseline, time of postoperative revival, and duration of recovery stay...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28196468/posterior-pedicle-screw-fixation-to-treat-lower-cervical-fractures-associated-with-ankylosing-spondylitis-a-retrospective-study-of-35-cases
#13
Liang Yan, Zhenguo Luo, Baorong He, Jijun Liu, Dingjun Hao
BACKGROUND: The most common site of fractures in patients with ankylosing spondylitis (AS) is the cervical spine, especially the lower cervical spine and cervicothoracic junction. The optimal treatment for cervical spine fractures secondary to AS is controversial. This study aimed to explore the effects of posterior pedicle screw fixation alone on fractures of the lower cervical spine in patients with AS. METHODS: From January 2006 to January 2013, a total of 35 patients with AS and a lower cervical spine fracture were treated using only posterior cervical/thoracic pedicle screw fixation...
February 14, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28187076/nutritional-status-as-an-adjunct-risk-factor-for-early-postoperative-complications-following-posterior-cervical-fusion
#14
Nathan J Lee, Parth Kothari, Jun S Kim, Kevin Phan, John Di Capua, John Shin, Samuel K Cho
STUDY DESIGN: Retrospective study on prospectively collected data. OBJECTIVE: To study the impact of nutritional status, as measured by serum albumin level, on patient outcomes following posterior cervical fusion (PCF) surgery. SUMMARY OF BACKGROUND DATA: Malnutrition is a potential modifiable risk factor that has garnered an increasing amount attention within orthopedics in recent years. There is evidence to suggest the role of nutritional status in lumbar and ACDF surgery, yet the data for PCF is still lacking...
February 9, 2017: Spine
https://www.readbyqxmd.com/read/28186971/ensnaring-membrane-type-1-matrix-metalloproteinase-mt1-mmp-with-tissue-inhibitor-of-metalloproteinase-timp-2-using-the-haemopexin-domain-of-the-protease-as-a-carrier-a-targeted-approach-in-cancer-inhibition
#15
Bingjie Jiang, Yan Zhang, Jian Liu, Anastasia Tsigkou, Magdalini Rapti, Meng Huee Lee
Metastatic cancer cells express Membrane Type 1-Matrix Metalloproteinase (MT1-MMP) to degrade the extracellular matrix in order to facilitate migration and proliferation. Tissue Inhibitor of Metalloproteinase (TIMP)-2 is the endogenous inhibitor of the MMP. Here, we describe a novel and highly effective fusion strategy to enhance the delivery of TIMP-2 to MT1-MMP. We can reveal that TIMP-2 fused to the haemopexin +/- transmembrane domains of MT1-MMP (two chimeras named T2PEX+TM and T2PEX) are able to interact with MT1-MMP on the cell surface as well as intracellularly...
February 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28185064/smith-robinson-procedure-with-and-without-caspar-plating-as-a-treatment-for-cervical-spondylotic-myelopathy-a-26-year-follow-up-of-23-patients
#16
Benedikt W Burkhardt, Moritz Brielmaier, Karsten Schwerdtfeger, Salam Sharif, Joachim M Oertel
PURPOSE: The purpose of this study was to assess long-term follow-up data after anterior cervical decompression and fusion (ACDF) with and without Caspar plating (ACDF + PS) for the treatment of cervical spondylotic myelopathy (CSM) with special focus on functional outcome, pain, and repeat surgery for adjacent segment disease (ASD). METHOD: Hospital records of 45 patients who were affected by CSM and underwent ACDF or ACDF + PS at least 17 years ago were reviewed...
February 9, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28182597/surgical-treatment-for-subaxial-cervical-facet-dislocations-with-incomplete-or-without-neurological-deficit-a-prospective-study-of-52-cases
#17
Xingjie Jiang, Yu Yao, Mingchen Yu, Yong Cao, Huilin Yang
BACKGROUND This study aimed to treat patients with subaxial cervical facet dislocations with incomplete or without neurological deficit by a prospectively designed surgical protocol and observe the short-term clinical outcomes. MATERIAL AND METHODS Fifty-two consecutive subaxial cervical dislocation patients with incomplete or without neurological deficit were enrolled. The surgical strategy was determined based on whether or not the initial anterior closed reduction was successful and whether or not the patients were simultaneously combined with traumatic disc herniation (TDH)...
February 9, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28178135/durability-of-cervical-disc-arthroplasties-and-its-influence-factors-a-systematic-review-and-a-network-meta-analysis
#18
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/28175519/345%C3%A2-elective-anterior-cervical-discectomy-and-fusion-vs-cervical-artificial-disc-replacement-a-comparison-of-perioperative-morbidity-and-early-outcomes
#19
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/28175440/169%C3%A2-laminoplasty-vs-laminectomy-with-posterior-spinal-fusion-for-multilevel-cervical-spondylotic-myelopathy-matched-cohorts-of-regional-sagittal-balance
#20
Darryl Lau, Ethan A Winkler, Khoi Duc Than, Dean Chou, Praveen V Mummaneni
No abstract text is available yet for this article.
August 1, 2016: Neurosurgery
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