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Cervical intervertebral disc

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https://www.readbyqxmd.com/read/29427744/towards-the-scale-up-of-tissue-engineered-intervertebral-discs-for-clinical-application
#1
Sarah E Gullbrand, Dong Hwa Kim, Edward Bonnevie, Beth G Ashinsky, Lachlan J Smith, Dawn M Elliott, Robert L Mauck, Harvey E Smith
Replacement of the intervertebral disc with a viable, tissue-engineered construct that mimics native tissue structure and function is an attractive alternative to fusion or mechanical arthroplasty for the treatment of disc pathology. While a number of engineered discs have been developed, the average size of these constructs remains a fraction of the size of human intervertebral discs. In this study, we fabricated medium (3 mm height x 10 mm diameter) and large (6 mm height x 20 mm diameter) sized disc-like angle ply structures (DAPS), encompassing size scales from the rabbit lumbar spine to the human cervical spine...
February 7, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29409935/comparison-between-cervical-disc-arthroplasty-and-conservative-treatment-for-patients-with-single-level-cervical-radiculopathy-at-c5-6
#2
Axiang He, Dong Xie, Bo Qu, Xiaomin Cai, Qin Kong, Lili Yang, Xiongsheng Chen, Lianshun Jia
BACKGROUND: Cervical radiculopathy is a common disease that affects millions of people. Patients usually are managed by conservative therapy and surgical treatments. OBJECTIVE: To compare the clinical outcomes between cervical disc arthroplasty (CDA) and conservative management for patients with single level cervical radiculopathy at C5/6. METHODS: Seventy-two patients with cervical radiculopathy that only affect C5/6 joints were included and thirty-two of them received CDA surgery, and forty patients were treated with conservative management...
January 30, 2018: International Journal of Surgery
https://www.readbyqxmd.com/read/29403240/only-spinal-fixation-as-treatment-of-prolapsed-cervical-intervertebral-disc-in-patients-presenting-with-myelopathy
#3
Atul Goel, Pralhad Dharurkar, Abhidha Shah, Sandeep Gore, Sandeep More, Shashi Ranjan
Aim: An alternative form of surgical treatment of prolapsed cervical intervertebral disc in patients presenting with symptoms related to myelopathy is discussed. The treatment involved fixation of the affected spinal segments and aimed at arthrodesis. No direct manipulation or handling of the disc was done. Materials and Methods: During the period August 2010 to June 2017, 16 patients presenting with symptoms attributed to myelopathy and diagnosed to have prolapsed cervical intervertebral disc were surgically treated by spinal stabilization...
October 2017: Journal of Craniovertebral Junction and Spine
https://www.readbyqxmd.com/read/29383502/influences-of-different-lower-cervical-bone-graft-heights-on-the-size-of-the-intervertebral-foramen-multiple-planar-dynamic-measurements-with-laser-scanning
#4
Rui Yang, Mengjun Ma, Lin Huang, Jichao Ye, Yong Tang, Peng Wang, Dezhen Yin, Keng Chen, Weiping Li, Huiyong Shen
The aim of this study is to evaluate the influences of different bone graft heights on the size of the intervertebral foramen, which will help determine the optimal graft height in clinical practice. Six fresh adult cadavers were used, with the C5-C6 vertebral column segment defined as the functional spinal unit (FSU). After discectomy, the C5/6 intervertebral height was set as the baseline height (normal disc height). We initially used spiral computed tomography (CT) to scan and measure the middle area of the intervertebral foramen when at the baseline height...
January 30, 2018: Lasers in Medical Science
https://www.readbyqxmd.com/read/29382028/intraoperative-conversion-of-artificial-cervical-disc-replacement-to-anterior-cervical-discectomy-and-fusion-for-iatrogenic-fracture-a-rare-case-report
#5
Bei-Yu Wang, Ting-Kui Wu, Hao Liu, Yu-Xiao Deng, Chen Ding
RATIONALE: Artificial cervical disc replacement (ACDR) has been reported to be an effective and safe surgical treatment for cervical spondylosis. However, iatrogenic fracture during ACDR surgery has rarely been reported. Considering its infrequency, we report a rare clinical case, with the aim of sharing our experience and exploring when to convert ACDR to fusion intraoperatively. PATIENTS CONCERNS: A 47-year-old woman felt neck pain with weakness and numbness in both upper limbs for 5 months...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29376740/evaluation-of-spinal-involvement-in-children-with-mucopolysaccharidosis-vi-the-role-of-mri
#6
Elif Bulut, Emine Pektas, Hatice S Sivri, Burcak Bilginer, Mumtaz M Umaroglu, Burce Ozgen
PURPOSE: To evaluate spinal MRI features of mucopolysaccharidosis (MPS) VI and to assess the correlation with clinical findings. METHODS: We retrospectively evaluated spinal MRI scans and clinical findings at the time of imaging in 14 patients (8 male, 6 female) with MPS VI. Craniometric measurements were performed and the images were assessed for bony anomalies, spinal stenosis and spinal cord compression. The degree of cervical cord compression was scored and correlated with neurological examination findings at the time of imaging...
January 29, 2018: British Journal of Radiology
https://www.readbyqxmd.com/read/29369059/use-of-an-ultrasonic-bone-curet-for-the-extraction-of-a-cervical-artificial-disc-a-novel-application-a-case-report
#7
J Timothy, V Petralia, J R Wilson
CASE: Eighteen months after implantation of a C6-C7 cervical artificial disc (ProDisc-C; DePuy Synthes), a 44-year-old woman presented with right-sided C7 radiculopathy. Imaging revealed posterior subsidence of the prosthesis, with C7 foraminal stenosis. An ultrasonic curet was used to safely and effectively extract the prosthesis without neurologic complication; safe access for the insertion of an intervertebral cage was facilitated. CONCLUSION: The ultrasonic curet was a safe and effective adjunct for revision artificial cervical disc replacement surgery; this technique may help to reduce potential injury to neural structures in a procedure with a traditionally high complication rate...
January 24, 2018: JBJS Case Connector
https://www.readbyqxmd.com/read/29366867/forestier-syndrome-and-obstructive-sleep-apnea-surgical-treatment
#8
D K Ribeiro, J A Pinto, G S Freitas
INTRODUCTION: We report a case of obstructive sleep apnea that occurred as a result of Forestier disease and describe the surgical treatment that was performed. SUMMARY: The patient is a 56-year-old man who presented dysphagia for solids and liquids, snoring (score 10) and excessive daytime sleepiness for 5 years. On fiber optic laryngoscopy examination, there was interarytenoid edema and protrusion of the posterior wall of the larynx. The cervical X-Ray showed protrusion of intervertebral disc between C3-C5 (skeletal hyperostosis) and the polysomnography revealed apnea-hypopnea index (AHI) of 56 events/h...
January 20, 2018: European Annals of Otorhinolaryngology, Head and Neck Diseases
https://www.readbyqxmd.com/read/29327972/albert-dereymaeker-and-joseph-cyriel-mulier-s-description-of-anterior-cervical-discectomy-with-fusion-in-1955
#9
Ronald H M A Bartels, Jan Goffin
Anterior cervical discectomy with fusion (ACDF) is a very well-known and often-performed procedure in the practice of spine surgeons. The earliest descriptions of the technique have always been attributed to Cloward, Smith, and Robinson. However, in the French literature, this procedure was also described by others during the exact same time period (in the 1950s). At a meeting in Paris in 1955, Belgians Albert Dereymaeker and Joseph Cyriel Mulier, a neurosurgeon and an orthopedic surgeon, respectively, described the technique that involved an anterior cervical discectomy and the placement of an iliac crest graft in the intervertebral disc space...
January 12, 2018: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29325196/ventral-slot-surgery-to-manage-cervical-intervertebral-disc-disease-in-three-cats
#10
Abbe Harper Crawford, Rodolfo Cappello, Akash Alexander, Steven De Decker
OBJECTIVE:  This case series describes the clinical presentation, management and outcome of three cats diagnosed with cervical intervertebral disc disease that underwent decompressive ventral slot surgery. METHODS:  This is a retrospective case series evaluating client-owned cats undergoing a ventral slot surgical procedure to manage cervical intervertebral disc disease (n = 3). RESULTS:  A routine ventral slot surgery was performed in each case without complication, resulting in postoperative neurological improvement in all three cases...
January 2018: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://www.readbyqxmd.com/read/29304802/evaluation-of-the-influence-of-kyphosis-and-scoliosis-on-intervertebral-disc-extrusion-in-french-bulldogs
#11
Maria Claudia C M Inglez de Souza, Richard Ryan, Gert Ter Haar, Rowena M A Packer, Holger A Volk, Steven De Decker
BACKGROUND: Although thoracic vertebral malformations with kyphosis and scoliosis are often considered incidental findings on diagnostic imaging studies of screw-tailed brachycephalic breeds, they have been suggested to interfere with spinal biomechanics and intervertebral disc degeneration. It is however unknown if an abnormal spinal curvature also predisposes dogs to develop clinically relevant intervertebral disc herniations. The aim of this study was to evaluate if the occurrence of thoracic vertebral malformations, kyphosis or scoliosis would be associated with a higher prevalence of cervical or thoracolumbar intervertebral disc extrusion in French bulldogs...
January 5, 2018: BMC Veterinary Research
https://www.readbyqxmd.com/read/29301464/intervertebral-disc-degeneration-in-warmblood-horses-morphology-grading-and-distribution-of-lesions
#12
Wilhelmina Bergmann, Niklas Bergknut, Stefanie Veraa, Andrea Gröne, Hans Vernooij, Inge D Wijnberg, Willem Back, Guy C M Grinwis
Equine intervertebral disc degeneration is thought to be rare and of limited clinical relevance, although research is lacking. To objectively assess pathological changes of the equine intervertebral disc and their clinical relevance, description of the normal morphology and a practical, biologically credible grading scheme are needed. The objectives of this study are to describe the gross and histological appearance of the equine intervertebral discs and to propose a grading scheme for macroscopic degeneration...
January 1, 2018: Veterinary Pathology
https://www.readbyqxmd.com/read/29285559/pressure-induced-end-plate-fracture-in-the-porcine-spine-is-the-annulus-fibrosus-susceptible-to-damage
#13
Chelsea R Snow, Maxine Harvey-Burgess, Brigitte Laird, Stephen H M Brown, Diane E Gregory
PURPOSE: To determine if the mechanical properties of the annulus fibrosus (AF) are altered following end-plate fracture. Vertebral fractures, particularly those in the growth plate, are relatively common among adolescents. What is unclear is whether or not these fractures are also associated with concomitant damage to the intervertebral disc (IVD), in particular the AF. METHODS: The current study employed a high-rate IVD pressurization model to create growth plate fractures in the porcine cervical spine...
December 28, 2017: European Spine Journal
https://www.readbyqxmd.com/read/29279758/the-role-of-dynamic-magnetic-resonance-imaging-in-cervical-spondylotic-myelopathy
#14
REVIEW
John Paul Kolcun, Lee Onn Chieng, Karthik Madhavan, Michael Y Wang
Dynamic spinal cord compression has been investigated for several years, but until the advent of open MRI, the use of dynamic MRI (dMRI) did not gain popularity. Several publications have shown that cervical cord compression is both static and dynamic. On many occasions the evaluation of cervical spondylotic myelopathy (CSM) is straightforward, but patients are frequently encountered with a significantly worse clinical examination than would be suggested by radiological images. In this paper, we present an extensive review of the literature in order to describe the importance of dMRI in various settings and applications...
December 2017: Asian Spine Journal
https://www.readbyqxmd.com/read/29276714/radiological-changes-in-the-cervical-spine-in-freshman-collegiate-sumo-wrestlers
#15
Yasuaki Nakagawa, Shogo Mukai, Kazufumi Minami, Yuji Hattori, Takashi Nakamura
Background: Sumo has long been a traditional sport in Japan and is rapidly attracting enthusiasts abroad. Sumo wrestling entails a risk of impact to the cervical spine during an initial charge. Few reports are available in the English-language literature regarding radiological changes in the cervical spine in sumo wrestlers. Purpose: To examine radiological changes in the cervical spine in freshmen collegiate sumo wrestlers. Study Design: Case series; Level of evidence, 4...
December 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29242976/a-rare-case-of-concomitant-cervical-disc-herniation-and-intradural-meningioma-treated-with-one-stage-posterior-surgery
#16
Xiaojian Hu, Zhong Chen, Yue Wang
STUDY DESIGN: Case report. PURPOSE: To present a rare case of cervical disc herniation concomitant with intradural meningioma which was successfully treated using a single one-stage posterior surgery of tumor resection and transdural discectomy. Coexistence of symptomatic disc herniation and intra-spinal tumor in the same cervical segment is extremely rare. Usually, two-stage anterior and posterior surgeries are needed to treat two conditions, respectively. One-stage posterior surgery to treat two pathologies simultaneously has not been reported in the literature...
December 14, 2017: European Spine Journal
https://www.readbyqxmd.com/read/29241695/percutaneous-full-endoscopic-anterior-transcorporeal-procedure-for-cervical-disc-herniation-a-novel-procedure-and-early-follow-up-study
#17
Qian Du, Xin Wang, Jian-Pu Qin, Thor Friis, Wei-Jun Kong, Yu-Qiang Cai, Jun Ao, Hao Xu, Wen-Bo Liao
OBJECTIVES: To describe the surgical technique of percutaneous full-endoscopic anterior transcorporeal cervical discectomy (PEATCD) in detail and report the clinical outcomes and radiological changes in patients with cervical intervertebral disc herniation (CIVDH). METHODS: A novel procedure, PEATCD, was performed on 36 patients with CIVDH between June 2015 and June 2016. A retrospective study of these patients was carried out over a follow-up period of 12-24 months...
December 11, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29233242/preflight-in-flight-and-postflight-imaging-of-the-cervical-and-lumbar-spine-in-astronauts
#18
Michael F Harrison, Kathleen M Garcia, Ashot E Sargsyan, Douglas Ebert, Roy F Riascos-Castaneda, Scott A Dulchavsky
BACKGROUND: Back pain is a common complaint during spaceflight that is commonly attributed to intervertebral disc swelling in microgravity. Ultrasound (US) represents the only imaging modality on the International Space Station (ISS) to assess its etiology. The present study investigated: 1) The agreement and correlation of spinal US assessments as compared to results of pre- and postflight MRI studies; and 2) the trend in intervertebral disc characteristics over the course of spaceflight to ISS...
January 1, 2018: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/29226132/effective-range-of-percutaneous-posterior-full-endoscopic-paramedian-cervical-disc-herniation-discectomy-and-indications-for-patient-selection
#19
Hongquan Wen, Xin Wang, Wenbo Liao, Weijun Kong, Jianpu Qin, Xing Chen, Hai Lv, Thor Friis
The objective was to investigate the effective and safe range of paramedian CDH by percutaneous posterior full-endoscopy cervical intervertebral disc nucleus pulposus resection (PPFECD) to provide a reference for indications and patient selection. Sixteen patients with CDH satisfied the inclusion criteria. Before surgery the patients underwent cervical spine MRI, and the distance between the dural sac and herniated disc was measured. An assessment was performed by MRI immediately after surgery, measuring the distance between dural sac and medial border of discectomy (DSMD)...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29220729/comparison-of-dynamic-cervical-implant-versus-anterior-cervical-discectomy-and-fusion-for-the-treatment-of-single-level-cervical-degenerative-disc-disease-a-five-year-follow-up
#20
Ce Zhu, Xi Yang, Lei Wang, Bo-Wen Hu, Li-Min Liu, Lin-Nan Wang, Hao Liu, Yue-Ming Song
OBJECTIVE: To compare clinical and radiographic outcomes of dynamic cervical implant(DCI) with anterior cervical discectomy and fusion(ACDF) in the treatment of single-level cervical degenerative disc disease (CDDD) 5 years after surgery. PATIENTS AND METHODS: Forty-three patients with DCI were matched one-to-one with patients with ACDF based on age, gender, and operative segment in this retrospective study. All patients had been followed up for more than 5 years...
December 5, 2017: Clinical Neurology and Neurosurgery
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