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https://www.readbyqxmd.com/read/28222342/concussion-is-associated-with-altered-preparatory-postural-adjustments-during-gait-initiation
#1
Cailbhe Doherty, Liang Zhao, John Ryan, Yusuke Komaba, Akihiro Inomata, Brian Caulfield
Gait initiation is a useful surrogate measure of supraspinal motor control mechanisms but has never been evaluated in a cohort following concussion. The aim of this study was to quantify the preparatory postural adjustments (PPAs) of gait initiation (GI) in fifteen concussion patients (4 females, 11 males) in comparison to a group of fifteen age- and sex-matched controls. All participants completed variants of the GI task where their dominant and non-dominant limbs as the 'stepping' and 'support' limbs. Task performance was quantified using the centre of pressure (COP) trajectory of each foot (computed from a force plate) and a surrogate of the centre of mass (COM) trajectory (estimated from an inertial measurement unit placed on the sacrum)...
February 17, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28216210/prevention-of-proximal-junctional-kyphosis-are-polyaxial-pedicle-screws-superior-to-monoaxial-pedicle-screws-at-the-upper-instrumented-vertebrae
#2
Hui Wang, Wenyuan Ding, Lei Ma, Lijun Zhang, Dalong Yang
INTRODUCTION: Evidence regarding whether the polyaxial pedicle screws at the upper instrumented vertebrae (UIV) are superior to monoaxial pedicle screws in prevention of proximal junctional kyphosis (PJK) is less clear. The aim of this study was therefore to explore the influence of different type of pedicle screws at UIV on the incidence of PJK. METHODS: 242 patients surgically treated with instrumented segmental posterior spinal fusion at a minimum 4 motion segments were reviewed retrospectively...
February 12, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28215408/predictive-validity-and-reliability-of-the-braden-scale-for-risk-assessment-of-pressure-ulcers-in-an-intensive-care-unit
#3
M Lima-Serrano, M I González-Méndez, C Martín-Castaño, I Alonso-Araujo, J S Lima-Rodríguez
OBJECTIVE: Contribution to validation of the Braden scale in patients admitted to the ICU, based on an analysis of its reliability and predictive validity. DESIGN: An analytical, observational, longitudinal prospective study was carried out. SETTING: Intensive Care Unit, Hospital Virgen del Rocío, Seville (Spain). PATIENTS: Patients aged 18years or older and admitted for over 24hours to the ICU were included. Patients with pressure ulcers upon admission were excluded...
February 15, 2017: Medicina Intensiva
https://www.readbyqxmd.com/read/28210997/3d-skeletal-uptake-of-18-f-sodium-fluoride-in-pet-ct-images-is-associated-with-overall-survival-in-patients-with-prostate-cancer
#4
Sarah Lindgren Belal, May Sadik, Reza Kaboteh, Nezar Hasani, Olof Enqvist, Linus Svärm, Fredrik Kahl, Jane Simonsen, Mads H Poulsen, Mattias Ohlsson, Poul F Høilund-Carlsen, Lars Edenbrandt, Elin Trägårdh
BACKGROUND: Sodium fluoride (NaF) positron emission tomography combined with computer tomography (PET/CT) has shown to be more sensitive than the whole-body bone scan in the detection of skeletal uptake due to metastases in prostate cancer. We aimed to calculate a 3D index for NaF PET/CT and investigate its correlation to the bone scan index (BSI) and overall survival (OS) in a group of patients with prostate cancer. METHODS: NaF PET/CT and bone scans were studied in 48 patients with prostate cancer...
December 2017: EJNMMI Research
https://www.readbyqxmd.com/read/28205592/a-new-basal-sauropodiform-dinosaur-from-the-lower-jurassic-of-yunnan-province-china
#5
Ya-Ming Wang, Hai-Lu You, Tao Wang
The Lufeng Formation in Lufeng Basin of Yunnan Province, southwestern China preserves one of the richest terrestrial Lower Jurassic vertebrate faunas globally, especially for its basal sauropodomorphs, such as Lufengosaurus and Yunnanosaurus. Here we report a new taxon, Xingxiulong chengi gen. et sp. nov. represented by three partial skeletons with overlapping elements. Xingxiulong possesses a number of autapomorphies, such as transversely expanded plate-like summit on top of the neural spine of posterior dorsal vertebrae, four sacral vertebrae, robust scapula, and elongated pubic plate approximately 40% of the total length of the pubis...
February 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28191659/lumbar-syndrome-a-case-manifesting-as-cutaneous-infantile-hemangiomas-of-the-lower-extremity-perineum-and-gluteal-region-and-a-review-of-published-work
#6
Xia Yu, Jia Zhang, Zhouwei Wu, Ming Liu, Ruhong Chen, Yan Gu, Ming Li, Zhirong Yao
We herein report a rare case of LUMBAR syndrome. A 1-month-old female infant presented with extensive segmental hemangiomas on the left lower extremity, left perineum and gluteal region with ulceration. Bilateral labia minoras were asymmetrical. Both legs were asymmetrical with left leg atrophy, and the intergluteal cleft was deviated. A dark red pustule and a sacrococcygeal dimple could be seen in the lumbosacral region. Lipomyelomeningocele, tethered cord and sacrum dysplasia were noted by magnetic resonance imaging...
February 13, 2017: Journal of Dermatology
https://www.readbyqxmd.com/read/28187305/improvement-of-upper-trunk-posture-during-walking-in-hemiplegic-patients-after-injections-of-botulinum-toxin-into-the-arm
#7
Harald Hefter, Dietmar Rosenthal
BACKGROUND: It has been hypothesized that altered trunk movements during gait in post-stroke patients or children with cerebral palsy are compensatory to lower limb impairment. Improvement of trunk movements and posture after injections of botulinum toxin into the affected arm would be at variance with this hypothesis and hint towards a multifactorial trunk control deficit. PATIENTS AND METHODS: Clinical gait analysis was performed in 11 consecutively recruited hemiplegic patients immediately before and 4weeks after a botulinum toxin type A-injection into the affected arm...
January 26, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28187072/predictors-of-blood-transfusion-in-posterior-lumbar-spinal-fusion-a-canadian-spine-outcome-and-research-network-csorn-study
#8
Mina W Morcos, Fan Jiang, Greg McIntosh, Michael Johnson, Sean Christie, Eugene Wai, Jean Ouellet, Chris Bailey, Henry Ahn, Jerome Paquet, Neil Manson, Charles Fisher, Raja Rampersaud, Ken Thomas, Hamilton Hall, Michael Weber
STUDY DESIGN: Retrospective cohort study. OBJECTIVE: To identify patient or procedure related predictors of postoperative blood transfusions in posterior lumbar fusion (PSF). SUMMARY OF BACKGROUND DATA: The rate of PSF surgery has increased significantly. It remains the most common surgical procedure used to stabilize the spine; however, the impact of blood loss requiring blood transfusions remains a significant concern. METHODS: Analysis of data from the Canadian Spine Outcomes and Research Network...
February 9, 2017: Spine
https://www.readbyqxmd.com/read/28182521/efficacy-and-safety-of-a-new-coverlet-device-on-skin-microclimate-management-a-pilot-study-in-critical-care-patients
#9
O Forriez, J Masseline, D Coadic, V David, P Trouiller, B Sztrymf
OBJECTIVE: To test the effect of a new coverlet device, allowing air circulation at the body/underlying surface interface, on skin microclimate management. METHOD: This prospective observational pilot study took place in a 15-bed university-affiliated intensive care unit. Overall, 34 mechanically ventilated patients were included. Skin humidity and temperature were monitored before and after the implementation of the tested device at the occiput, scapulas, buttocks and sacrum...
February 2, 2017: Journal of Wound Care
https://www.readbyqxmd.com/read/28173513/different-risk-factors-of-proximal-junctional-kyphosis-and-proximal-junctional-failure-following-long-instrumented-fusion-to-the-sacrum-for-adult-spinal-deformity-survivorship-analysis-of-160-patients
#10
Se-Jun Park, Chong-Suh Lee, Sung-Soo Chung, Jun-Young Lee, Sang-Soo Kang, Se-Hwan Park
No abstract text is available yet for this article.
February 1, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28164066/giant-cell-tumor-developing-in-paget-s-disease-of-bone-a-case-report-with-review-of-literature
#11
Vivek Verma, Ajay Puri, Sanket Shah, Bharat Rekhi, Ashish Gulia
INTRODUCTION: Paget's disease of bone (PDB) is a disease of elderly characterized by disorganized bone remodeling. Development of secondary neoplasm in PDB is a known but rare phenomenon. Development of giant cell tumor in PDB (GCT-PDB) is extremely rare, and little is known about its etiopathogenesis and management. We present a case report of such a development with a review of the literature and the role of various new modalities of treatment available in the management of this rare condition...
September 2016: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28158156/percutaneous-sacroplasty-for-non-neoplastic-osteoporotic-sacral-insufficiency-fractures
#12
Dong-Hwa Heo, Choon-Keun Park
BACKGROUND: Osteoporosis is an important problem in those of advanced age. Osteoporosis can induce sacral insufficiency fractures (SIFs). As average life expectancy increases, the number of patients with osteoporotic SIFs also increases. Osteoporotic SIFs cause severe low back pain and immobilization. Treatment of SIFs varies from analgesia to surgery. OBJECTIVES: To describe our experience and assess the safety and effectiveness of minimally invasive percutaneous sacroplasty in patients with osteoporotic SIFs...
February 2017: Pain Physician
https://www.readbyqxmd.com/read/28153036/biomechanical-comparison-of-multilevel-lateral-interbody-fusion-with-and-without-supplementary-instrumentation-a-three-dimensional-finite-element-study
#13
Xilin Liu, Jun Ma, Paul Park, Xiaodong Huang, Ning Xie, Xiaojian Ye
BACKGROUND: Lateral lumbar interbody fusion (LLIF) is a popular, minimally invasive technique that is used to address challenging multilevel degenerative spinal diseases. It remains controversial whether supplemental instrumentation should be added for multilevel LLIF. In this study, we compared the kinematic stability afforded by stand-alone lateral cages with those supplemented by bilateral pedicle screws and rods (PSR), unilateral PSR, or lateral plate (LP) fixation using a finite-element (FE) model of a multi-level LLIF construct with simulated osteoporosis...
February 2, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28148671/is-computer-navigation-when-used-in-the-surgery-of-iliosacral-pelvic-bone-tumours-safer-for-the-patient
#14
COMPARATIVE STUDY
M K Laitinen, M C Parry, J I Albergo, R J Grimer, L M Jeys
AIMS: Due to the complex anatomy of the pelvis, limb-sparing resections of pelvic tumours achieving adequate surgical margins, can often be difficult. The advent of computer navigation has improved the precision of resection of these lesions, though there is little evidence comparing resection with or without the assistance of navigation. Our aim was to evaluate the efficacy of navigation-assisted surgery for the resection of pelvic bone tumours involving the posterior ilium and sacrum...
February 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28127750/standing-sagittal-alignment-of-the-whole-axial-skeleton-with-reference-to-the-gravity-line-in-humans
#15
Kazuhiro Hasegawa, Masashi Okamoto, Shun Hatsushikano, Haruka Shimoda, Masatoshi Ono, Takao Homma, Kei Watanabe
Human beings stand upright with the chain of balance beginning at the feet, progressing to the lower limbs (ankles, knees, hip joints, pelvis), each of the spinal segments, and then ending at the cranium to achieve horizontal gaze and balance using minimum muscle activity. The details of the alignment and balance of the chain, however, are not clearly understood, due to the lack of information regarding the three-dimensional (3D) orientation of all bony elements in relation to the gravity line (GL). We performed a clinical study to clarify the standing sagittal alignment of whole axial skeletons in reference to the GL using the EOS slot-scanning 3D X-ray imaging system with simultaneous force plate measurement in a healthy human population...
January 27, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/28124426/relationship-between-transitional-lumbosacral-vertebrae-and-eight-lumbar-vertebrae-in-a-breeding-colony-of-labrador-retrievers-and-labrador-crosses
#16
C F Moeser, C M Wade
OBJECTIVE: Transitional lumbosacral vertebrae (TLSV) is a hereditary malformation of the spinal column diagnosed in various dog breeds. The aim of this study was to explore whether different lumbosacral phenotypes have an inherited basis. METHODS: Radiographs of all dogs within a breeding colony were performed and assessed. A comparison of the incidence of TLSV, eight lumbar vertebrae (8LV), and fusion of the first caudal vertebrae to the sacrum or near fusion of this area was made between litters of normal parentage and litters where one or both of the parents had an anomaly...
January 2017: Australian Veterinary Journal
https://www.readbyqxmd.com/read/28123731/bone-langerhans-cell-histiocytosis-with-pulmonary-involvement-in-an-adult-non-smoker-a-case-report-and-brief-review-of-the-literature
#17
Jie Shen, Shicheng Feng
Langerhans cell histiocytosis (LCH) is a rare disease of unknown cause, which encompasses a set of disorders of multiple organs with various clinical presentations that share the common characteristic of sizeable Langerhans cell infiltration. The clinical spectrum of LCH ranges from solitary bone lesions to involvement of other organs. lung involvement in LCH may be part of a multisystem disease, which almost exclusively occurs in adult smokers, while it is overlooked or misdiagnosed in the majority of non-smokers...
January 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28113592/visuomotor-entrainment-and-the-frequency-dependent-response-of-walking-balance-to-perturbations
#18
Jason R Franz, Carrie Francis, Matt Allen, Darryl G Thelen
Visuomotor entrainment, or the synchronization of motor responses to visual stimuli, is a naturally emergent phenomenon in human standing. Our purpose was to investigate the prevalence and resolution of visuomotor entrainment in walking and the frequency-dependent response of walking balance to perturbations. We used a virtual reality environment to manipulate optical flow in ten healthy young adults during treadmill walking. A motion capture system recorded trunk, sacrum, and heel marker trajectories during a series of 3-min conditions in which we perturbed a virtual hallway mediolaterally with systematic changes in the driving frequencies of perceived motion...
August 26, 2016: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/28110244/quantification-of-postural-control-deficits-in-patients-with-recent-concussion-an-inertial-sensor-based-approach
#19
Cailbhe Doherty, Liang Zhao, John Ryan, Yusuke Komaba, Akihiro Inomata, Brian Caulfield
BACKGROUND: The aim of this study was to quantify postural control ability in a group with concussion compared with a healthy control group. METHOD: Fifteen concussion patients (4 females, 11 males) and a group of fifteen age- and sex-matched controls were recruited. Participants were tested during the performance of the three stance variants (bilateral, tandem and unilateral) of the balance error scoring system standing on a force place, while wearing an inertial measurement unit placed at the posterior aspect of the sacrum...
January 16, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28110186/numb-chin-syndrome-as-a-sign-of-mandibular-metastasis-a-case-report
#20
Thomas Aerden, Koenraad Grisar, Patrick Neven, Esther Hauben, Constantinus Politis
INTRODUCTION: Metastasis to the oral cavity can be located in both the soft and bony tissues and comprise only 1% of all oral malignancies; however, it is clinically significant because it indicates widespread metastatic disease and an unfavorable prognosis. A numb chin is an important presentation of oral metastasis, but other dental and systemic pathology may be involved. PRESENTATION OF CASE: We present the case of a 54-year-old woman who presented with numb chin syndrome 8 years after a diagnosis of primary breast carcinoma...
January 4, 2017: International Journal of Surgery Case Reports
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