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https://www.readbyqxmd.com/read/29778132/cervical-vestibular-evoked-myogenic-potentials-cvemps-evoked-by-air-conducted-stimuli-in-patients-with-functional-neck-dissection
#1
Hasan Demirhan, Bahtiyar Hamit, Özgür Yiğit
OBJECTIVE: Cervical vestibular-evoked myogenic potentials (cVEMPs) are short-latency vestibulocollic reflexes. The damage on any point of the vestibulocollic reflex pathway could affect the cVEMPs. Whether neck dissection has an effect on the sacculocollic pathway, and consequently on cVEMPs, remains unexplored. The aim of this study was to evaluate the cVEMP findings in patients with functional neck dissection without vestibular symptoms. PATIENTS AND METHODS: This cross-sectional study design, 20 patients who had undergone unilateral neck dissection with sparing of the accessory nerve, SCM and internal jugular vein, were included...
June 2018: Journal of the National Medical Association
https://www.readbyqxmd.com/read/29777885/posttraumatic-cerebrospinal-fluid-leak-associated-with-an-upper-cervical-meningeal-diverticulum
#2
Noriya Enomoto, Hideo Mure, Toshiyuki Okazaki, Mai Azumi, Shinya Okita, Shinji Nagahiro, Yasushi Takagi
Spontaneous intracranial hypotension (SIH) has been increasingly recognized as a phenomenon caused by cerebrospinal fluid (CSF) leaks; however, its pathogenesis is still unclear. Here, we report two cases of SIH as a result of CSF leak from a meningeal diverticulum at the C2 nerve root sleeve. The first case is that of a 46-year-old man who had suffered from orthostatic headache after a bicycle accident at age 45. Computed tomography (CT) myelography revealed CSF leaks at the C1/2 level. He underwent epidural blood patch (EBP) therapy, but it was unsuccessful...
May 16, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29775860/a-cone-beam-computed-tomography-study-of-the-mesial-cervical-concavity-of-maxillary-first-premolars
#3
Linfeng Fan, Keyong Yuan, Chenguang Niu, Rui Ma, Zhengwei Huang
OBJECTIVE: To investigate the mesial cervical concavity of maxillary first premolars and its relationship with root and canal configuration using cone-beam computed tomography (CBCT). DESIGN: Images of maxillary first premolars (n = 1056) were collected from patients (n = 601) who had undergonein vivo CBCT scanning. The root and canal number and morphology were evaluated. The following measurements of the mesial cervical concavity of the maxillary first premolars were evaluated in section images: dentine thickness (in concavity at the cemento-enamel junction), concavity angle, depression depth (distance from mesial dentinal surface at concavity to mesial proximity), concavity position (distance from mesial dentinal wall at invagination to the top of the mesial marginal ridge)...
May 7, 2018: Archives of Oral Biology
https://www.readbyqxmd.com/read/29775002/-clinical-significance-of-four-quadrant-localization-in-the-diagnosis-and-treatment-of-metastatic-carcinoma-of-the-neck-with-unknown-primary
#4
Y Y Gao, X H Chen
Objective: The aim of this study is to investigate the clinical significance of four quadrant localization in the diagnosis and treatment of unknown primary cervical metastases. Method: The clinical data with unknown primary cervical metastases, were analyzed retrospectively. All the patients have not been found the original site in the initial treatment. There are four quadrants in the neck, the neck line as the longitudinal axis, and edge of cricoid cartilage as the horizontal axis. When cervical metastasis occurred in the left and right upper quadrant, the primary tumor site and radiotherapy from the skull base to the root of the neck; when appear in left and right lower quadrant, the primary investigation site and radiotherapy from neck to thoracic mediastinum, left lower abdomen also includes following primary search...
June 5, 2017: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29772859/-analysis-of-clinical-efficacy-of-unilateral-open-door-cervical-laminoplasty-combined-with-foraminotomy-for-cervical-ossification-of-posterior-longitudinal-ligament
#5
Feng Yang, Ming-Sheng Tan, Xiang-Sheng Tang, Liang-Hai Jiang, Ping Yi, Qing-Ying Hao
OBJECTIVE: To explore the clinical efficacy of unilateral open-door laminoplasty combined with foraminotomy for cervical ossification of posterior longitudinal ligament(OPLL). METHODS: The clinical data of 45 patients with OPLL underwent surgical treatment between September 2011 and September 2015 were retrospectively analyzed. There were 26 males and 19 females with a mean age of 53.6 years old(ranged from 28 to 71 years). Among them, 24 cases received the surgery of unilateral open-door cervical laminoplasty combined with foraminotomy(combined group), and 21 cases received a single unilateral open-door cervical laminoplasty(single group)...
April 25, 2018: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29772854/-observation-of-early-clinical-effect-of-percutaneous-transforaminal-endoscopic-technology-in-treating-cervical-spondylotic-radiculopathy
#6
Ying-Chun Zhang, Tai-Sheng Chen, Hua Zhu
OBJECTIVE: To explore the early clinical effect and safety of percutaneous transforaminal endoscopic technology for cervical spondylotic radiculopathy. METHODS: From August 2016 to September 2017, 14 patients with cervical spondylotic radiculopathy who responded poorly to non-surgical treatment for at least 6 weeks underwent percutaneous transforaminal endoscopic discectomy via posterior approach. There were 6 males and 8 females, aging from 32 to 68 years old with an average of (40...
April 25, 2018: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29769776/root-coverage-with-buccal-fat-pad-placed-on-restored-cervical-abrasion-case-report-with-three-year-follow-up
#7
Harpreet Singh Grover, Sagrika Shukla, Ashi Chug, Kuldeep Singh
A patient was reported with Class II gingival recession (GR) of 5 mm. After restoring abrasion with glass ionomer cement, a full-thickness flap was raised and using blunt dissection through the buccinator and loose surrounding fascia buccal fat pad (BFP) was exposed into the mouth. It was easily spread over the maxillary roots of 14, 15, and 16. It was secured and immobilized using sutures. Postoperatively, the patient did not report swelling or trismus. At 3-year postoperative, gingival margin was at cementoenamel junction, stable and healthy and did not show any recession...
March 2018: Journal of Indian Society of Periodontology
https://www.readbyqxmd.com/read/29768371/complex-regional-pain-syndrome-type-ii-after-cervical-transforaminal-epidural-injection-a-case-report
#8
Gi-Young Park, Dong Rak Kwon, Dae Gil Kwon
RATIONALE: We report a case of a 61-year-old patient who developed complex regional pain syndrome (CRPS) type II after a cervical transforaminal epidural steroid injection (CTESI). PATIENT CONCERNS: The patient developed sudden-onset severe pain and swelling of his upper right limb after a cervical transforaminal epidural injection. DIAGNOSES: On physical examination, the patient's symptoms and signs corresponded to the Budapest criteria for CRPS...
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29768091/effect-of-830-nm-diode-laser-irradiation-of-root-canal-on-bond-strength-of-metal-and-fiber-post
#9
Claudia Strefezza, Marcello Magri Amaral, José Quinto, Sheila Cynthia Gouw-Soares, Claudia Bianchi Zamataro, Denise Maria Zezell
OBJECTIVE AND BACKGROUND: The correct selections of the cementing agent, the endodontic post material and placement protocol are critical to provide an increased longevity of the teeth that went through endodontic treatment. The irradiation with diode laser before post cementation, can promote an antimicrobial effect. However, there is a lack of information about the effect of 830 nm diode laser on the post bond strength. This study analyzed the effect of dentin root canal irradiation with high-intensity diode laser, at 830 nm, operating in continuous or pulsed mode, on the retention of metal or fiber posts, cemented with self-etching resinous composite (Panavia F) and zinc phosphate cement (ZnPO4 )...
May 16, 2018: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/29765790/direct-posterior-bipolar-cervical-facet-radiofrequency-rhizotomy-a-simpler-and-safer-approach-to-denervate-the-facet-capsule
#10
Ovidiu Palea, Haroon M Andar, Ramon Lugo, Michelle Granville, Robert E Jacobson
Radiofrequency cervical rhizotomy has been shown to be effective for the relief of chronic neck pain, whether it be due to soft tissue injury, cervical spondylosis, or post-cervical spine surgery. The target and technique have traditionally been taught using an oblique approach to the anterior lateral capsule of the cervical facet joint. The goal is to position the electrode at the proximal location of the recurrent branch after it leaves the exiting nerve root and loops back to the cervical facet joint. The standard oblique approach to the recurrent nerve requires the testing of both motor and sensory components to verify the correct position and ensure safety so as to not damage the slightly more anterior nerve root...
March 14, 2018: Curēus
https://www.readbyqxmd.com/read/29747611/an-in-vitro-study-evaluating-the-effect-of-ferrule-design-on-the-fracture-resistance-of-endodontically-treated-mandibular-premolars-after-simulated-crown-lengthening-or-forced-eruption-methods
#11
Qingfei Meng, Qian Ma, Tianda Wang, Yaming Chen
BACKGROUND: The purpose of this study was to evaluate the effect of ferrule design on the fracture resistance of endodontically treated mandibular first premolars after simulated crown lengthening and orthodontic forced eruption methods restored with a fiber post-and-core system. METHODS: Forty extracted and endodontically treated mandibular first premolars were decoronated to create lingual-to-buccal oblique residual root models, with a 2.0 mm height of the lingual dentine wall coronal to the cemento-enamel junction, and the height of buccal surface at the cemento-enamel junction...
May 10, 2018: BMC Oral Health
https://www.readbyqxmd.com/read/29745256/salvage-of-cervical-motor-radiculopathy-using-peripheral-nerve-transfer-reconstruction
#12
Fardad T Afshari, Taushaba Hossain, Caroline Miller, Dominic M Power
PURPOSE: Motor nerve transfer surgery involves re-innervation of important distal muscles using either an expendable motor branch or a fascicle from an adjacent functioning nerve. This technique is established as part of the reconstructive algorithm for traumatic brachial plexus injuries. The reproducible outcomes of motor nerve transfer surgery have resulted in exploration of the application of this technique to other paralysing conditions. The objective of this study is to report feasibility and increase awareness about nerve transfer as a method of improving upper limb function in patients with cervical motor radiculopathy of different aetiology...
May 10, 2018: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/29737544/external-cervical-resorption-part-2-management
#13
REVIEW
S Patel, F Foschi, R Condon, T Pimentel, B Bhuva
Effective management of external cervical resorption (ECR) depends on accurate assessment of the true nature and accessibility of ECR; this has been discussed in part 1 of this 2 part paper. This aim of this paper is firstly, to review the literature in relation to the management of ECR, and secondly, based on the available evidence describe different strategies for the management of ECR. In cases where ECR is supracrestal, superficial and with limited circumferential spread a surgical repair without root canal treatment is the preferred approach...
May 8, 2018: International Endodontic Journal
https://www.readbyqxmd.com/read/29737380/the-zonal-pattern-of-arterial-supply-to-the-brachial-plexus-and-its-clinical-significance
#14
An-Bo Gao, Yun-Cheng Lv, Ai-Ping Wang, Li-Yuan Zhong, Mao-Lin Tang, Binu-Prathap Thomas, Tian-Hong Peng
PURPOSE: To provide the anatomical basis of blood supply of brachial plexus for the clinical microsurgical treatment of brachial plexus injury. METHODS: Thirteen adult anticorrosive cadaveric specimens (8 males, 5 females) were dissected in this study. 3 fresh cases (2 males, 1 female) were used to observe the zonal pattern of arteries supplying brachial plexus, and 10 cases (6 males, 4 females) were used to observe the source and distribution of the brachial plexus arteries under microscope...
May 8, 2018: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29708572/relationship-between-foraminal-area-and-degenerative-changes-in-the-lower-cervical-spine-with-implications-for-c5-nerve-root-palsy
#15
Matthew V Abola, Derrick M Knapik, Anahid A Hamparsumian, Randall E Marcus, Raymond W Liu, Zachary L Gordon
Preoperative foraminal stenosis at C4/5 is a predisposing risk factor for C5 nerve root palsy in elderly patients. However, the area of the C4/5 intervertebral foramen and its relationship to the extent of arthrosis and lower foraminal areas (C5/6 and C6/7) are unknown. The authors sought to compare the areas of the cervical intervertebral foramen at the C4/5, C5/6, and C6/7 levels, noting any differences across race or sex and the relationship between foraminal area and arthrosis grade. A total of 600 cervical foramina from an osseous collection were examined...
April 27, 2018: Orthopedics
https://www.readbyqxmd.com/read/29707549/percutaneous-endoscopic-cervical-discectomy-a-technical-review
#16
REVIEW
Javier Quillo-Olvera, Guang-Xun Lin, Jin-Sung Kim
The treatment of cervical disc herniations has evolved in the last 2 decades. While the anterior cervical discectomy and fusion continues being the gold standard for the treatment of radicular pain triggered by cervical disc herniation, other surgical approaches have been developed. Percutaneous endoscopic cervical discectomy has demonstrated the ability to decompress the exiting nerve root and dural sac correctly and encouraging clinical outcomes has been reported in the literature. One of the most important advantages offered by the endoscopic technique is the capability to resolve the patient's symptoms without the need for interbody fusion...
March 2018: Annals of Translational Medicine
https://www.readbyqxmd.com/read/29707016/diagnostic-efficacy-of-four-methods-for-locating-the-second-mesiobuccal-canal-in-maxillary-molars
#17
Mariana De Carlo Bello, Camilla Tibúrcio-Machado, Clacir Dotto Londero, Fernando Branco Barletta, Carlos Heitor Cunha Moreira, Cláudia Medianeira Londero Pagliarin
Introduction: The major cause for failure of root canal therapy is the inability to recognize the presence of all canals of the root canal system. Auxiliary tools, such as magnifying loupe, operative microscope and computed tomography (CT) images are used to facilitate the location of canals. The objective of the present survey was to evaluate the diagnostic efficacy of four methods for detecting the second canal of mesiobuccal roots (MB2) of permanent maxillary molars. Methods and Material: A total of 147 extracted human maxillary molars were assessed...
2018: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/29695816/comparative-study-on-differentiation-of-cervical-loop-cells-and-hertwig-s-epithelial-root-sheath-cells-under-the-induction-of-dental-follicle-cells-in-rat
#18
Yongwen Guo, Weihua Guo, Jie Chen, Ye Tian, Guoqing Chen, Weidong Tian, Ding Bai
Cervical loop cells (CLC) and Hertwig's epithelial root sheath (HERS) cells are believed to play critical roles in distinct developmental patterns between rodent incisors and molars, respectively. However, the differences in differentiation between CLC and HERS cells, and their response to inductions from dental follicle cells, remain largely unknown. In present study, CLC and HERS cells, as well as incisor dental follicle (IF) cells and molar dental follicle (MF) cells were isolated from post-natal 7-day rats...
April 25, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29690690/-advantages-and-disadvantages-of-endocrown-restorations-of-endodontically-treated-teeth-with-large-coronal-destruction
#19
X D Bao
The strength of endodontically treated teeth were reduced apparently because of structural damage, therefore further reduction of healthy tissue should be avoided as much as possible in restoration. Endocrown made by chair-side CAD/CAM is some kind of minimal invasive restoration, and the retention of restoration is achieved by reliable bonding and macromechanial retention forces. Without post preparation, the root structure could be resevered. Following the indications and use of biomechanical dentin-like CAD/CAM materials could reduce the adverse effect of tensile stress on cervical part...
April 9, 2018: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
https://www.readbyqxmd.com/read/29685193/is-the-glass-half-empty-or-half-full-a-novel-philosophical-approach-to-the-mystery-of-the-so-called-ferrule-effect
#20
Minos Stavridakis, Yiannis Brokos, Ivo Krejci
The prognosis of endodontically treated teeth has traditionally been associated with the presence of the so-called ferrule effect that is generally related with the presence of a minimum of 1-2 mm of sound tooth structure at the cervical area of parallel axial walls that totally encircle the tooth. Even though all of these factors are well desired, one should question if their absence should condemn a tooth and compel extraction as the only logical treatment plan option. For this reason an hypothesis is being formed that associates the aforementioned factors not with the presence of the so-called ferrule effect, but rather with the resistance form of the preparation that is being provided by the sound tooth structure at the cervical area of the tooth...
June 2018: Medical Hypotheses
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