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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
#1
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/28171773/cervical-traction-therapy-with-and-without-neck-support-a-finite-element-analysis
#2
Kuan Wang, Huihao Wang, Zhen Deng, Zhengyan Li, Hongsheng Zhan, Wenxin Niu
BACKGROUND: Cervical traction is commonly used for treating neck pain. However, few studies have investigated the biomechanical impact such traction has on soft tissues. OBJECTIVES: To analyze the biomechanics of cervical traction therapy in a supine position with and without neck support (NS and non-NS). METHODS: A finite element model of the cervical spine was constructed to investigate the mechanism behind cervical traction therapy. An axial traction force of 100-N was loaded on the upper surface of C0 to simulate traction weight...
January 16, 2017: Musculoskelet Sci Pract
https://www.readbyqxmd.com/read/28128704/cervical-lordotic-alignment-following-posterior-spinal-fusion-for-adolescent-idiopathic-scoliosis-reciprocal-changes-and-risk-factors-for-malalignment
#3
Kazunori Hayashi, Hiromitsu Toyoda, Hidetomi Terai, Akinobu Suzuki, Masatoshi Hoshino, Koji Tamai, Shoichiro Ohyama, Hiroaki Nakamura
OBJECTIVE Numerous reports have been published on the effectiveness and safety of correction of the coronal Cobb angle and thoracolumbar sagittal alignment in patients with adolescent idiopathic scoliosis (AIS). Suboptimal sagittal alignment, such as decreased thoracic kyphosis (TK), after corrective surgery, is a possible cause of lumbar or cervical spinal degeneration and junctional malalignment; however, few reports are available on reciprocal changes outside of the fused segments, such as the cervical lordotic angle (CLA)...
January 27, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28116458/correlation-analysis-of-osteoporotic-vertebral-compression-fractures-and-spinal-sagittal-imbalance
#4
Yi-Long Zhang, Li-Tao Shi, Pei-Fu Tang, Zhi-Jie Sun, Ya-Hui Wang
PURPOSE: To evaluate the correlation between osteoporotic vertebral compression fractures and spinal sagittal imbalance, in order to provide a reference for clinical treatment. METHODS: From September 2013 to March 2015, 60 elderly patients with old osteoporotic vertebral compression factures (observation group) and 60 healthy elderly people (control group) were studied. Whole-spine anteroposterior and lateral view X‑ray photographs were taken from all participants, the number and location of fractured vertebrae were recorded, and sagittal parameters in both groups were compared...
January 23, 2017: Der Orthopäde
https://www.readbyqxmd.com/read/28107314/effect-of-treatment-with-twin-block-appliances-on-body-posture-in-class-ii-malocclusion-subjects-a-prospective-clinical-study
#5
Dalia Smailienė, Aistė Intienė, Irma Dobradziejutė, Gintaras Kušleika
BACKGROUND There is strong evidence that malocclusion and body posture are interdependent. The relationship between improvement of nasopharyngeal airway, correction of malocclusion by orthodontic treatment or orthognathic surgery, and changes in body posture were evaluated in several studies. The purpose of the present study was to analyze the effect of the orthodontic treatment with Twin-block appliance on body posture. MATERIAL AND METHODS The study group consisted of 23 children (mean age 12.45 (1.06) years)...
January 20, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28073140/-clinical-and-radiological-results-after-anterior-cervical-corpectomy-with-cage-fusion-a-retrospective-comparison-of-peek-vs-titanium-cages
#6
Chris Schulz, Uwe Max Mauer, René Mathieu
Background Anterior cervical corpectomy and fusion (ACCF) has become a standard procedure for patients with spondylotic myelopathy due to multisegmental stenosis of the cervical canal. Beside the fusion technique using autogenous bone grafts, synthetic cages have been increasingly used in recent years. Published information on the clinical and radiological results of different cage materials for ACCF is still limited. The study presented here is the largest series to date reporting clinical and radiological outcomes and complication rates after one- to three-level ACCF using structural polyetheretherketone (PEEK) or titanium cages augmented by anterior plate-screw osteosynthesis...
January 10, 2017: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/28065711/a-comparison-of-the-effects-of-male-pheromone-priming-and-optogenetic-inhibition-of-accessory-olfactory-bulb-forebrain-inputs-on-the-sexual-behavior-of-estrous-female-mice
#7
Elizabeth A McCarthy, Tenzin Kunkhyen, Wayne J Korzan, Ajay Naik, Arman Maqsudlu, James A Cherry, Michael J Baum
Previous research has shown that repeated testing with a stimulus male is required for ovariectomized, hormone-primed female mice to become sexually receptive (show maximal lordosis quotients; LQs) and that drug-induced, epigenetic enhancement of estradiol receptor function accelerated the improvement in LQs otherwise shown by estrous females with repeated testing. We asked whether pre-exposure to male pheromones ('pheromone priming') would also accelerate the improvement in LQs with repeated tests and whether optogenetic inhibition of accessory olfactory bulb (AOB) projection neurons could inhibit lordosis in sexually experienced estrous female mice...
January 5, 2017: Hormones and Behavior
https://www.readbyqxmd.com/read/28043852/surgical-techniques-for-lumbo-sacral-fusion
#8
REVIEW
P Tropiano, H Giorgi, A Faure, B Blondel
Lumbo-sacral (L5-S1) fusion is a widely performed procedure that has become the reference standard treatment for refractory low back pain. L5-S1 is a complex transition zone between the mobile lordotic distal lumbar spine and the fixed sacral region. The goal is to immobilise the lumbo-sacral junction in order to relieve pain originating from this site. Apart from achieving inter-vertebral fusion, the main challenge lies in the preoperative determination of the fixed L5-S1 position that will be optimal for the patient...
December 30, 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/27994787/long-term-outcomes-of-posterior-lumbar-interbody-fusion-using-stand-alone-ray-threaded-cage-for-degenerative-disk-disease-a-20-year-follow-up
#9
Saleh S Baeesa, Belen G Medrano, David C Noriega
STUDY DESIGN: Retrospective study. PURPOSE: To analyze outcomes of posterior lumbar interbody fusion (PLIF) stand-alone cages. OVERVIEW OF LITERATURE: PLIF for degenerative disk disease using stand-alone cages has lost its popularity owing to implant-related complications and pseudoarthrosis. METHODS: We analyzed the records of 45 patients (18 women, 27 men), operated between January 1994 and December 1996, with a mean follow-up of 18 years 3 months (20 years 3 months-22 years 3 months)...
December 2016: Asian Spine Journal
https://www.readbyqxmd.com/read/27988036/a-female-head-neck-model-for-rear-impact-simulations
#10
Jonas Östh, Manuel Mendoza-Vazquez, Fusako Sato, Mats Y Svensson, Astrid Linder, Karin Brolin
Several mathematical cervical models of the 50th percentile male have been developed and used for impact biomechanics research. However, for the 50th percentile female no similar modelling efforts have been made, despite females being subject to a higher risk of soft tissue neck injuries. This is a limitation for the development of automotive protective systems addressing Whiplash Associated Disorders (WADs), most commonly caused in rear impacts, as the risk for females sustaining WAD symptoms is double that of males...
January 25, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/27921118/can-different-occlusal-positions-instantaneously-impact-spine-and-body-posture-a-pilot-study-using-rasterstereography-for-a-three-dimensional-evaluation
#11
Karoline März, Werner Adler, Ragai-Edward Matta, Linda Wolf, Manfred Wichmann, Bastian Bergauer
PURPOSE: Orthodontists influence dental occlusion directly. To suggest any link between dental occlusion and body posture is highly contentious, as evidenced by the literature. Rasterstereography, an optical technique that enables three-dimensional (3D) body measurements to be collected, has not yet been used to impartially examine whether different occlusal positions could instantaneously alter spine and body posture. We therefore set out to use this technique to nonsubjectively evaluate this question under static conditions...
December 5, 2016: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/27889355/cervical-sagittal-alignment-in-adult-hyperkyphosis-treated-by-posterior-instrumentation-and-in-situ-bending
#12
F Paternostre, Y P Charles, E A Sauleau, J-P Steib
BACKGROUND: In the normal adult spine, a link between thoracolumbar and cervical sagittal alignment exists, suggesting adaptive cervical positional changes allowing horizontal gaze. In patients with thoracic hyperkyphosis, cervical adaptation to sagittal global alignment might be different from healthy individuals. However, this relationship has not clearly been reported in hyperkyphotic deformity. PURPOSE: The purpose of this study was to identify cervical sagittal alignment types observed on radiographs in young adults with thoracic hyperkyphosis...
November 23, 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/27887013/severe-cervical-spondylotic-myelopathy-with-complete-neurological-and-neuroradiological-recovery-within-a-month-after-surgery
#13
Th Marios, Zevgaridis Dimitrios, Th Theologos, Tsonidis Christos
Cervical spondylotic myelopathy is a complex syndrome evolving in the presence of degenerative changes. The choice of care and prognostic factors are controversial. The use of appropriate surgical technique is very important. Posterior approach may be chosen when pathology is present dorsally and/or in the presence of neutral to lordotic alignment. Anterior approach is the golden standard in patients with kyphosis and/or stenosis due to ventral lesions, even with three or more affected levels. A 67-year-old man presented with progressive weakness and clumsiness (mJOA: 5; Nurick: 4)...
November 24, 2016: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/27879567/collar-fixation-is-not-mandatory-after-cervical-laminoplasty-a-randomized-controlled-trial
#14
Tetsuro Hida, Yoshihito Sakai, Kenyu Ito, Sadayuki Ito, Shiro Imagama, Naoki Ishiguro, Atsushi Harada
STUDY DESIGN: Prospective randomized controlled study OBJECTIVES.: To determine the effect of collar-aided fixation on outcomes following laminoplasty for cervical compressive myelopathy. SUMMARY OF BACKGROUND DATA: Patients are often placed in a Philadelphia collar for weeks after cervical laminoplasty. However, the benefit of postoperative collar use remains controversial. We hypothesized that treatment outcomes in postoperative pain in patients without collars would not be inferior to the outcomes in patients using Philadelphia collars for two weeks...
November 22, 2016: Spine
https://www.readbyqxmd.com/read/27847575/microsurgical-foraminotomy-via-wiltse-paraspinal-approach-for-foraminal-or-extraforaminal-stenosis-at-l5-s1-level-risk-factor-analysis-for-poor-outcome
#15
Sung-Ik Cho, Chung-Kee Chough, Shu-Chung Choi, Jin-Young Chun
OBJECTIVE: The purpose of this study was to present the outcome of the microsurgical foraminotomy via Wiltse paraspinal approach for foraminal or extraforaminal (FEF) stenosis at L5-S1 level. We investigated risk factors associated with poor outcome of microsurgical foraminotomy at L5-S1 level. METHODS: We analyzed 21 patients who underwent the microsurgical foraminotomy for FEF stenosis at L5-S1 level. To investigate risk factors associated with poor outcome, patients were classified into two groups (success and failure in foraminotomy)...
November 2016: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/27821975/the-effect-of-lumbar-pelvic-alignment-and-abdominal-muscle-thickness-on-primary-dysmenorrhea
#16
Moon-Jeong Kim, Il-Hun Baek, Bong-Oh Goo
[Purpose] The purpose of this study was to identify effects of malalignment of the lumbar pelvis, as a passive element, and the thicknesses of abdominal muscles, as active elements, on primary dysmenorrhea. [Subjects and Methods] The subjects were divided into a primary dysmenorrhea group and normal group according to Visual Analogue Scale, and ultimately there were 28 subjects in the dysmenorrhea group and 22 subjects in the normal group. Alignment of the lumbar pelvis was measured by using a Formetric 4D analysis system, and the thicknesses of abdominal muscles were measured by using ultrasound imaging...
October 2016: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/27790313/age-related-incidence-of-cervical-spondylosis-in-residents-of-jeju-island
#17
Myung-Sang Moon, Min-Geun Yoon, Bong-Keun Park, Min-Suk Park
STUDY DESIGN: Cervical spine radiograms of 460 Jeju islanders. PURPOSE: To investigate the age-matched incidences and severity of the cervical disc degeneration and associated pathologic findings. OVERVIEW OF LITERATURE: Several related studies on the incidences of disc and Luschka's and facet joint degeneration have provided some basic data for clinicians. METHODS: Cervical radiographs of 460 (220 males and 240 females) patients in their fourth to ninth decade were analyzed...
October 2016: Asian Spine Journal
https://www.readbyqxmd.com/read/27788619/the-effect-of-training-on-lumbar-spine-posture-and-intervertebral-disc-degeneration-in-active-duty-marines
#18
Ana E Rodriguez-Soto, David B Berry, Rebecca Jaworski, Andrew Jensen, Christine B Chung, Brenda Niederberger, Aziza Qadir, Karen R Kelly, Samuel R Ward
Military training aims to improve load carriage performance and reduce risk of injuries. Data describing the lumbar spine (LS) postural response to load carriage throughout training are limited. We hypothesized that training would reduce the LS postural response to load. The LS posture of 27 Marines was measured from upright MR images: with and without load (22.6kg) at the beginning, middle and end of School of Infantry (SOI) training. Disc degeneration was graded at L5-S1. ANOVA and post-hoc tests were used to compare posture across training and by tasks, and disc health (α=0...
October 27, 2016: Ergonomics
https://www.readbyqxmd.com/read/27785930/evaluation-of-paravertebral-muscle-atrophy-and-fatty-degeneration-in-ankylosing-spondylitis
#19
Hatice Resorlu, Yılmaz Savas, Nilufer Aylanc, Ferhat Gokmen
AIM: The purpose of this study was to assess morphological changes in the paravertebral muscles in patients with ankylosing spondylitis. MATERIALS AND METHODS: Fifty-one patients diagnosed with ankylosing spondylitis and a 50 member control group were included in the study. The surface area of the multifidus and erector spinae muscles was measured at four levels between L1 and L5, and fatty degeneration in these muscles was scored. Lumbosacral and lumbar lordotic angles were determined for the patient and control groups...
October 27, 2016: Modern Rheumatology
https://www.readbyqxmd.com/read/27783108/-peek-cage-fusion-after-anterior-cervical-corpectomy-clinical-and-radiological-results-in-patients-with-spondylotic-myelopathy
#20
C Schulz, U M Mauer, R Mathieu
BACKGROUND: Anterior cervical corpectomy and fusion (ACCF) has become a standard procedure for patients with spondylotic myelopathy due to multisegmental stenosis of the cervical canal. In addition to the fusion technique using autogenous bone grafts and titanium implants, synthetic polyetheretherketone (PEEK) cages have been used increasingly during the last years. However, limited evidence on the clinical and radiological results of PEEK cages for ACCF exists in the literature. The study presented here is the largest series to date reporting clinical and radiological outcome as well as complication rates after one to three-level ACCF using PEEK cages augmented by an anterior plate-screw osteosynthesis...
October 25, 2016: Der Orthopäde
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