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Cervical length

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https://www.readbyqxmd.com/read/28548212/an-electromyographic-study-on-the-sequential-recruitment-of-bilateral-sternocleidomastoid-and-masseter-muscle-activity-during-gum-chewing
#1
Shao-Xiong Guo, Bao-Yong Li, Yuan Zhang, Li-Juan Zhou, Lu Liu, Sven E Widmalm, Mei-Qing Wang
BACKGROUND: Mandibular functions are associated with electromyographic activity of the jaw muscles and also the sternocleidomastoid muscle (SCM). The precise spatiotemporal relation of SCM and masticatory muscles activities during chewing is worthy of investigation. OBJECTIVE: To analyze the sequential recruitment of SCM and masseter activities during chewing as indicated by the spatiotemporal locations of their activity peaks. METHODS: Jaw movements and bilateral surface electromyographic activity of SCM and masseter were recorded during gum chewing in 20 healthy subjects...
May 26, 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/28545443/cervical-kyphosis-in-patients-with-lenke-type-1-adolescent-idiopathic-scoliosis-the-prediction-of-thoracic-inlet-angle
#2
Ce Zhu, Xi Yang, Bangjian Zhou, Lei Wang, Chunguang Zhou, Tingxian Ling, Limin Liu, Yueming Song
BACKGROUND: Several studies have explored cervical kyphosis (CK) in adolescent idiopathic scoliosis (AIS) patients. However, few studies have evaluated the cervical alignment in these patients according to their coronal curve type. The aim of this study was to analyze the radiological features of cervical sagittal alignment in Lenke 1 AIS patients before and after surgery. METHODS: This is a retrospective study enrolled 50 patients. Preoperative and postoperative standing full-length radiographs (at last follow-up after operation) were used to measure the coronal and sagittal parameters...
May 25, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28544409/mind-the-gap-temporal-discrimination-and-dystonia
#3
A Sadnicka, C Daum, C Cordivari, K P Bhatia, J C Rothwell, S Manohar, M J Edwards
BACKGROUND AND PURPOSE: One of the most widely studied perceptual measures of sensory dysfunction in dystonia is the temporal discrimination threshold (TDT) (the shortest interval at which subjects can perceive that there are two stimuli rather than one). However the elevated thresholds described may be due to a number of potential mechanisms as current paradigms test not only temporal discrimination but also extraneous sensory and decision-making parameters. In this study two paradigms designed to better quantify temporal processing are presented and a decision-making model is used to assess the influence of decision strategy...
June 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28543926/comparative-effect-of-the-sites-of-anterior-cervical-pressure-on-the-geometry-of-the-upper-esophageal-sphincter-high-pressure-zone
#4
Ling Mei, Hongmei Jiao, Tarun Sharma, Arshish Dua, Patrick Sanvanson, Sudarshan R Jadcherla, Reza Shaker
OBJECTIVES/HYPOTHESIS: External cricoid pressure is increasingly used to augment the upper esophageal sphincter (UES). Our objective was to determine the effect of 1) pressures applied to cricoid, supracricoid, and subcricoid regions on the length and amplitude of the UES high-pressure zone (UESHPZ), and 2) the external cricoid pressure on lower esophageal sphincter (LES) tone. STUDY DESIGN: Case-control study. METHODS: We studied 11 patients with supraesophageal reflux (mean age 58 ± 12 years) and 10 healthy volunteers (mean age 47 ± 19 years)...
May 23, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28540785/single-session-high-intensity-focussed-ablation-hifu-versus-open-cervical-hemithyroidectomy-for-benign-thyroid-nodule-analysis-on-early-efficacy-safety-and-voice-quality
#5
Brian H H Lang, Carlos K H Wong, Estella P M Ma
BACKGROUND: High intensity focussed ultrasound (HIFU) is a promising non-surgical treatment for symptomatic benign thyroid nodule. We aimed to compare early efficacy, safety and voice quality between HIFU ablation and open thyroidectomy. METHODS: Consecutive patients who underwent single-session HIFU ablation or a hemithyroidectomy for symptomatic benign thyroid nodule were included. The 6-month extent of nodule shrinkage, symptom improvement score, thyroid function, hospital stay and cost were compared between the two procedures...
March 24, 2017: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/28540576/cervical-length-dynamics-in-triplet-pregnancies-a-retrospective-cohort-study
#6
Sophie Pils, Stephanie Springer, Verena Wehrmann, Kinga Chalubinski, Johannes Ott
PURPOSE: To review our experience with a screening program that included sequential cervical length measurements in our large population of triplet pregnancies. METHODS: Seventy-eight triplet pregnancies were retrospectively included. Cervical length measurements were performed by transvaginal ultrasound in 2-week intervals from week 16 + 0 onwards in a tertiary-care center in Vienna. The main outcome measurement was preterm delivery prior to 32 + 0 weeks of gestation...
May 24, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28537129/perioperative-outcomes-of-thoracic-outlet-syndrome-surgical-repair-in-a-nationally-validated-database
#7
Besma Nejim, Husain N Alshaikh, Isibor Arhuidese, Tammam Obeid, Ying Wei Lum, Joseph Canner, Satinderjit S Locham, Mahmoud Malas
We evaluated the occurrence of thoracic outlet syndrome (TOS) and 30-day postoperative outcomes. Patients undergoing cervical/first rib resection surgery were identified in the American College of Surgeons National Surgical Quality Improvement Program database (2005-2013). Thoracic outlet syndrome types were then examined. Propensity score matching was performed to account for potential confounders; 1180 patients were explored during the study period, 1007 (85.3%) were of the neurogenic TOS (NTOS), 32 (2.7%) patients had arterial TOS (ATOS), and 141 (12...
July 2017: Angiology
https://www.readbyqxmd.com/read/28535404/placental-inflammation-and-its-relationship-to-cervicovaginal-fetal-fibronectin-in-preterm-birth
#8
Laura van der Krogt, Alexandra E Ridout, Paul T Seed, Andrew H Shennan
OBJECTIVE: Late miscarriage and preterm birth are frequently thought to be associated with inflammation and infection, although in most cases the underlying cause of early delivery remains unknown. The placenta is the organ that links mother and fetus during pregnancy, and postnatal examination may provide useful information about pathophysiology. The relationship between placental pathological lesions and predictive markers of early delivery has not been explored. We sought to characterize preterm deliveries according to placental pathology and relate these to the performance of reliable predictive markers, fetal fibronectin and cervical length...
May 3, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28533991/multivariable-analysis-of-factors-affecting-length-of-stay-and-hospital-charges-after-atlantoaxial-fusion
#9
Jian Guan, Michael Karsy, Meic Schmidt, Andrew T Dailey, Erica Bisson
BACKGROUND: Atlantoaxial fusion is an effective procedure for treating degenerative, traumatic, and congenital abnormalities that result in upper cervical instability; however, data on which factors affect the length of stay and hospitalization-related charges are limited. The purpose of this study was to evaluate the pre-, intra-, and postoperative variables that affect these healthcare cost factors for patients undergoing posterior atlantoaxial fusion. METHODS: We retrospectively identified from a clinical database 59 patients who underwent isolated posterior atlantoaxial fusion at a single institution from 2010 to 2015...
April 18, 2017: Curēus
https://www.readbyqxmd.com/read/28531940/contusional-cerebellar-hemorrhage-related-to-placement-in-the-protrusion-position-after-atlantoaxial-fusion
#10
Yoshinari Miyaoka, Mikinobu Takeuchi, Norimitsu Wakao, Masahiro Aoyama, Kazuhiro Hongo, Masakazu Takayasu
BACKGROUND: Various complications after C1 lateral mass and C2 pedicle screw fusion surgery (C1LM-C2PSFS) have been reported. However, to our knowledge, this is the first report of contusional cerebellar hemorrhage caused by placement in the protrusion (chin-out) position after C1LM-2PSFS. CASE DESCRIPTION: An 81-year-old woman complaining of gait disturbance and clumsiness of both hands was diagnosed with cervical myelopathy with atlantoaxial subluxation. After we performed C1LM-C2PSFS, her neurologic deficits gradually improved, and there was no radiologic evidence of construct failure...
May 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28528932/robot-assisted-gynaecological-cancer-surgery-complications-and-prevention
#11
REVIEW
Ka Yu Tse, Hextan Yuen Sheung Ngan, Peter Christopher Lim
Ever since the US Food and Drug Administration approval of the use of da Vinci surgical systems (Intuitive Surgical Inc., Sunnyvale, California) in gynaecology in 2005, robot-assisted surgery has been widely adopted in different countries. Some of the applications in benign and oncological gynaecology include myomectomy, sacrocolpopexy, tubal anastomosis, simple hysterectomy, radical hysterectomy, radical trachelectomy, pelvic and/or para-aortic lymphadenectomy and even debulking surgery for ovarian cancer and pelvic exenteration for recurrent cervical and vaginal cancer...
April 23, 2017: Best Practice & Research. Clinical Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/28527755/perioperative-neurologic-complications-during-spinal-fusion-surgery-incidence-and-trends
#12
Parthasarathy Thirumala, James Zhou, Piruthiviraj Natarajan, Jeffrey Balzer, Edward Dixon, David Okonkwo, D K Hamilton
BACKGROUND CONTEXT: Perioperative neurologic complications after spine surgery may increase morbidity and healthcare costs related to the procedure. PURPOSE: We estimate the national incidence of perioperative neurologic complications following anterior cervical discectomy and fusion (ACDF), posterior cervical fusion, and thoracolumbar fusion procedures using the Nationwide Inpatient Sample (NIS) data from 1999 to 2011. Additionally, we identify risk factors for developing perioperative neurologic complications and the effects of these injuries on quantifiable patient outcomes...
May 17, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28526287/functional-analyses-of-the-primate-upper-cervical-vertebral-column
#13
Thierra K Nalley, Neysa Grider-Potter
Recent work has highlighted functional correlations between direct measures of head and neck posture and primate cervical bony morphology. Primates with more horizontal necks exhibit middle and lower cervical vertebral features that indicate increased mechanical advantage for deep nuchal musculature and mechanisms for column curvature formation and maintenance. How features of the C1 and C2 reflect quantified measures of posture have yet to be examined. This study incorporates bony morphology from the upper cervical levels from 20 extant primate species in order to investigate further how posture correlates with cervical vertebrae morphology...
June 2017: Journal of Human Evolution
https://www.readbyqxmd.com/read/28525480/a-new-entrance-technique-for-c2-pedicle-screw-placement-and-the-use-in-patients-with-atlantoaxial-instability
#14
Jia-Ming Liu, Jian Jiang, Zhi-Li Liu, Xin-Hua Long, Wen-Zhao Chen, Yang Zhou, Song Gao, Lai-Chang He, Shan-Hu Huang
STUDY DESIGN: A prospective study and a technique note. OBJECTIVES: To introduce a new entrance technique for C2 pedicle screw placement and to measure the related linear and angular parameters about the entrance point on computed tomography (CT) images. The safety of this technique for patients with atlantoaxial instability was also evaluated. BACKGROUND DATA: Although earlier studies have introduced different methods for C2 pedicle screw placement, the entry points and the angular parameters may be variable...
June 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28525474/anatomy-of-lamina-in-the-subaxial-cervical-spine-with-the-special-reference-to-translaminar-screws-ct-and-cadaveric-analysis-with-screw-trajectory-simulation
#15
Woojin Cho, Jason T Le, Adam L Shimer, Brian C Werner, John A Glaser, Francis H Shen
STUDY DESIGN: A cadaveric study. SUMMARY OF BACKGROUND DATA: Translaminar screws were initially developed for C2 fixation. Since then, their usage has expanded to include the subaxial cervical spine, and thoracic and lumbar spine. To the best of our knowledge, special anatomy for inserting translaminar screws in the subaxial cervical spine has not been studied. OBJECTIVE: To report the special anatomy for inserting translaminar screws in the subaxial cervical spine...
June 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28525473/is-total-disk-replacement-a-cost-effective-treatment-for-cervical-degenerative-disk-disease
#16
Bernd Wiedenhöfer, Joachim Nacke, Mike Stephan, Wiltrud Richter, Claus Carstens, Markus Eichler
STUDY DESIGN: A retrospective study. OBJECTIVE: The objective of this study was to assess the cost-effectiveness and clinical outcome of motion-preserving versus fusion procedures in cervical spine surgery. SUMMARY OF BACKGROUND DATA: During the last decade there has been a huge growth in spine surgery with a concurrent increase in the economic burden. Currently, there appear to be no differences in clinical outcome between cervical total disk replacement (TDR) and spinal fusion (SF)...
June 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28525472/a-comparison-of-implants-used-in-open-door-laminoplasty-structural-rib-allografts-versus-metallic-miniplates
#17
Ehsan Tabaraee, Praveen Mummaneni, Amir Abdul-Jabbar, David Shearer, Esha Roy, Beejal Amin, Christopher Ames, Shane Burch, Vedat Deviren, Sigurd Berven, Serena Hu, Dean Chou, Bobby K Tay
STUDY DESIGN: A retrospective case-controlled study. SUMMARY OF BACKGROUND DATA: Open-door laminoplasty has been successfully used to address cervical spondylotic myelopathy and ossification of the posterior longitudinal ligament. Two common implants include rib allograft struts and metallic miniplates. OBJECTIVE: The goals of this study were to compare outcomes, complications, and costs associated with these 2 implants. METHODS: A retrospective review was done on 51 patients with allograft struts and 55 patients with miniplates...
June 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28524790/cognard-type-v-intracranial-dural-arteriovenous-fistula-presenting-in-a-pediatric-patient-with-rapid-progressive-myelopathy
#18
Walter J Jermakowicz, Alexander G Weil, Artyom Vlasenko, Sanjiv Bhatia, Toba N Niazi
Cognard Type V dural arteriovenous fistulas (dAVFs) are a unique type of cranial vascular malformation characterized by congestion of the perimedullary venous system that may lead to devastating spinal cord pathology if left untreated. The authors present the first known case of a pediatric patient diagnosed with a Type V dAVF. A 14-year-old girl presented with a 3-week history of slowly progressive unilateral leg weakness that quickly progressed to bilateral leg paralysis, sphincter dysfunction, and complete sensory loss the day of her presentation...
May 19, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28523949/developmental-changes-in-pharyngeal-swallowing-acoustics-a-comparison-of-adults-and-children
#19
Neville W Hennessey, Gemma Fisher, Natalie Ciccone
This study examined developmental differences in the acoustics of pharyngeal swallowing. Thirty-one young children (M = 4.5 years) and 29 adults (M = 22.5 years) were recorded swallowing thin liquid and puree boluses. In comparison with adults, children showed longer total swallow sound duration and duration to peak intensity, as well as greater variability in the duration to peak intensity and mean of the averaged spectrum in Hz. Thin and puree boluses differed in measures of duration, intensity and frequency of the averaged sound spectrum, although these effects did not interact with age...
May 19, 2017: Logopedics, Phoniatrics, Vocology
https://www.readbyqxmd.com/read/28522371/c1-lateral-mass-screw-insertion-from-the-caudal-dorsal-to-the-cranial-ventral-direction-as-an-alternate-method-for-c1-fixation-a-quantitative-anatomical-and-morphometric-evaluation
#20
Mehmet Senoglu, Ali Karadag, Burak Kinali, Baran Bozkurt, Cigdem Icke, Duygu Halacoglu Savran, Erik H Middlebrooks
OBJECT: C1 lateral mass screw has been widely used for fixation of the upper cervical spine. However, traditional fixation methods are not without complication. Morphometric measurement of an alternative approach is conducted. METHODS: Three-dimensional CT scans of the cervical spine obtained in 100 adults were evaluated, and key measurements were determined for screw entry points, trajectories, and screw lengths for placement of a C1 screw via this alternate approach...
May 15, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
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