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https://www.readbyqxmd.com/read/28448899/undesirable-properties-of-the-dimensionless-normalisation-for-spatio-temporal-variables
#1
Kohleth Chia, Morgan Sangeux
We used theory and empirical data to demonstrate three undesirable properties of the dimensionless normalisation technique for gait spatio-temporal parameters. Firstly, it may not fully remove the correlation between leg length and spatio-temporal parameters. Secondly, it induces spurious correlation among spatio-temporal parameters, which might obscure their true correlation structure. Thirdly, it induces spurious correlation with external covariates, which complicates further statistical modelling. Therefore, depending on the objectives, we propose alternatives...
April 19, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28448898/kinematic-gait-pattern-in-children-with-cerebral-palsy-and-leg-length-discrepancy-effects-of-an-extra-sole
#2
Meta N Eek, Roland Zügner, Ingibjörg Stefansdottir, Roy Tranberg
The gait pattern in children with cerebral palsy (CP) often differs from normal, with slow velocity, problem with foot clearance and increased stress on joints. Several factors, such as muscle tone, impaired motor control, muscle contractures, skeletal deformities and leg length discrepancy affect gait. Leg length discrepancy can be treated surgically or with elevation of the shoe on the short leg. The purpose of this study was to examine whether compensating for leg length discrepancy, with elevation of the sole, leads to a change in movement pattern during walking in children with spastic CP...
April 17, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28442780/the-effect-of-body-composition-and-serum-inflammatory-markers-on-the-functional-muscle-bone-unit-in-premenopausal-women
#3
S M Mueller, I Herter-Aeberli, A C Cepeda-Lopez, M Flück, H H Jung, M Toigo
BACKGROUND/OBJECTIVES: A number of recent studies dealing with the relationship between the effects of high body mass (BM) and fat mass (FM) on bone mass and strength exhibit a range of contrasting variations in their findings. These diverse findings have led to an ongoing controversy as to whether high BM and FM positively or negatively affect bone mass and strength. Excessive fat mass and the associated low-grade inflammation might overturn the higher mechanical stimulus arising from a higher body mass...
April 26, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28439312/validation-of-the-multiplier-method-for-leg-length-predictions-on-a-large-european-cohort-and-an-assessment-of-the-effect-of-physiological-age-on-predictions
#4
J J Aird, C L Cheesman, A T Schade, F P Monsell
PURPOSE: The Avon Longitudinal Study of Parents and Children (ALSPAC) prospective cohort was used to determine the accuracy of the Paley multiplier method for predicting leg length. Using menarche as a proxy, physiological age was then used to increase the accuracy of the multiplier. METHODS: Chronological age was corrected in female patients over the age of eight years with documented date of first menses. Final sub-ischial leg length and predicted final leg length were predicted for all data points...
2017: Journal of Children's Orthopaedics
https://www.readbyqxmd.com/read/28435385/a-new-species-of-poropoea-foerster-from-africa-hymenoptera-chalcidoidea-trichogrammatidae
#5
Stefania Laudonia, Gennaro Viggiani, Silvano Biondi
A new species of Poropoea Foerster (Hymenoptera, Chalcidoidea, Trichogrammatidae) was obtained from eggs of attelabid beetles (Coleoptera: Attelabidae) associated with Combretum sp. (Myrtales, Combretaceae). This species is described from Ogooué-Ivindo province in north-eastern Gabon. The new species is easily distinguished from the known members of the genus Poropoea by the following combination of characters: female antennal club unsegmented, premarginal vein of the fore wing with a nodular premarginal vein and the stigma of the stigmal vein black, the wing lacks the RS1 track; front and hind legs more robust than the middle leg and with coxa and femur markedly enlarged, and ovipositor exserted to one-third of the gaster length...
2017: ZooKeys
https://www.readbyqxmd.com/read/28433868/effects-of-attentional-focus-on-walking-stability-in-elderly
#6
Jonathan L A de Melker Worms, John F Stins, Erwin E H van Wegen, Sabine M P Verschueren, Peter J Beek, Ian D Loram
INTRODUCTION: Balance performance in the elderly is related to psychological factors such as attentional focus. We investigated the effects of internal vs. external focus of attention and fall history on walking stability in healthy older adults. METHOD: Walking stability of twenty-eight healthy older adults was assessed by applying random unilateral decelerations on a split-belt treadmill and analysing the resulting balance recovery movements. The internal focus instruction was: concentrate on the movement of your legs, whereas the external focus instruction was: concentrate on the movement of the treadmill...
April 4, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28433416/static-postural-control-in-youth-with-osteogenesis-imperfecta-type-i
#7
Annie Pouliot-Laforte, Martin Lemay, Frank Rauch, Louis-Nicolas Veilleux
OBJECTIVE: To assess static postural control in eyes-open and eyes-closed conditions in individuals with osteogenesis imperfecta (OI) type I as compared to typically developing (TD) individuals. The second aim was to explore the relation between postural control and lower-limbs muscle function. DESIGN: This is a cross-sectional study. SETTINGS: The study was carried out in the outpatient department of a pediatric orthopedic hospital. PARTICIPANTS: 22 individuals with OI type I (mean age [range]: 13...
April 19, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28431451/-experience-with-the-hind-foot-relaxation-boot
#8
Hans Zwipp, Michael Borrmann, Eberhard Walter
The goal of this paper is to report our experience with hindfoot fractures using our specially developed boot, with a follow-up of 557 cases. This boot works like the well-known Allgöwer-Röck ortheses (ARO), but is a hybrid between a boot and an orthesis. It allows full weightbearing without using crutches and completely protects an acutely operated hind foot fracture, hind foot arthrodesis or a hind foot fracture which is suitable for conservative treatment. In its first generation, this boot was custom made and used in 408 cases, from March 1999 to February 2011...
April 21, 2017: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/28428035/evaluation-of-the-external-fixator-truelok-hexapod-system-for-tibial-deformity-correction-in-children
#9
Sébastien Pesenti, Christopher A Iobst, Franck Launay
BACKGROUND: Tibial deformities are common in paediatric orthopaedic practice. Correcting multiplanar tibial deformities associated with lower limb length discrepancycan be challenging. Hexapod external fixation with gradual correction has been proven effective in this situation. OBJECTIVE: To assess clinical and radiological outcomes of gradual tibial deformity correction using the external fixator TL-HEX(TM)(Orthofix) in children. HYPOTHESIS: TL-HEX™ is effective in correcting tibial deformities in children...
April 17, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28427725/association-of-mild-leg-length-discrepancy-and-degenerative-changes-in-the-hip-joint-and-lumbar-spine
#10
Kelvin J Murray, Tom Molyneux, Michael R Le Grande, Aurora Castro Mendez, Franz K Fuss, Michael F Azari
OBJECTIVE: The purpose of this study was to evaluate the correlation between mild leg length discrepancy (LLD) and degenerative joint disease (DJD) or osteoarthritis. METHODS: We evaluated standard postural lumbopelvic radiographs from 255 adults (121 women and 134 men) who had presented with spinal pain for chiropractic care. Symmetry of femoral head diameters was used to exclude magnification errors. Pearson's partial correlation was used to control for age and derive effect sizes for LLD on DJD in the hip and lower lumbar motion segments...
April 17, 2017: Journal of Manipulative and Physiological Therapeutics
https://www.readbyqxmd.com/read/28424851/vascularized-fibular-medialization-for-reconstruction-of-the-tibial-defects-following-tumour-excision
#11
Abed El-Negery, Nabil Ahmed Elmoghazy, Mohamed Serry Abd-Ellatif, Adham Elgeidi
PURPOSE: The purpose of this study was to evaluate the functional and oncologic results of fibular medialization when used alone as a single-stage reconstructive technique after wide excision of malignant tumours of the proximal, middle, or distal tibia. METHODS: Between December 2010 and May 2015, 14 patients (six males and eight females) with primary malignant tumours of the tibia (eight proximal, four diaphyseal, two distal) were treated by wide excision. The mean age of the patients at the time of surgery was 23...
April 19, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28424098/identification-of-odorant-binding-protein-genes-in-galeruca-daurica-coleoptera-chrysomelidae-and-analysis-of-their-expression-profiles
#12
L Li, Y-T Zhou, Y Tan, X-R Zhou, B-P Pang
Odorant-binding proteins (OBPs) play a fundamental role in insect olfaction. In recent years, Galeruca daurica (Joannis) (Coleoptera: Chrysomelidae) has become one of the most important insect pests in the Inner Mongolian grasslands of China. This pest only feeds on the species of Allium plants, implying the central role of olfaction in its search for specific host plants. However, the olfaction-related proteins have not been investigated in this beetle. In this study, we identified 29 putative OBP genes, namely GdauOBP1-29, from the transcriptome database of G...
April 20, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28421784/assessment-of-anthropometric-indicators-in-children-with-cerebral-palsy-according-to-the-type-of-motor-dysfunction-and-reference-standard
#13
Jorge Abraham García Iñiguez, Edgar Manuel Vásquez-Garibay, Andrea García Contreras, Enrique Romero-Velarde, Rogelio Troyo Sanromán
AIM: The study aimed to demonstrate that the assessment of the anthropomorphic measurements of children with cerebral palsy (CP) varies according to the type of motor dysfunction and references standard used for comparison. METHOD: In a cross-sectional design, 108 children 2 to 16 years were classified according to the type of motor dysfunction by gender and age group. Weight, mid-upper-arm-circumference (MUAC), and alternative measures for height were performed...
March 30, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/28420471/-mixed-venous-arterial-carbon-dioxide-difference-combined-with-passive-leg-raising-in-guiding-volume-management-for-patients-post-off-pump-coronary-artery-bypass-grafting
#14
Likun Huo, Peijun Li, Chang Xie, Chenglei Yan, Jie Li
OBJECTIVE: To investigate whether mixed venous-arterial carbon dioxide difference (Pv-aCO2) combined with passive leg raising (PLR) could better guide volume management for patients post off-pump coronary artery bypass grafting (OPCABG). METHODS: Eighty patients experienced OPCABG, and admitted to Tianjin Chest Hospital from June 1st to October 1st in 2016 were enrolled. They were randomly divided into two groups: observation group given Pv-aCO2 combined with PLR directed therapy and control group given central venous pressure (CVP) directed therapy, 40 cases in each group...
April 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28416826/-surgical-technique-and-early-clinical-outcomes-of-direct-anterior-approach-to-total-hip-arthroplasty
#15
M Lv, J Q Zhang, X S Wang, Y Huang, W Li, C Y Zhang
OBJECTIVE: To describe the surgical technique of direct anterior approach to total hip arthroplasty and to report the early clinical outcomes. METHODS: A series of 100 consecutive, unselected patients who had 116 primary total hip arthroplasty surgeries (16 bilateral) done through direct anterior approach from March 11 2015 to June 21 2016 was reviewed. There were 50 male patients and 50 female patients. The average patient age was 51 years, and the average body mass index was 24...
April 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28416439/clinical-and-radiographic-outcomes-of-bilateral-decompression-via-a-unilateral-approach-with-transforaminal-lumbar-interbody-fusion-for-lumbar-degenerative-spondylolisthesis-with-stenosis
#16
Xiaofei Cheng, Kai Zhang, Xiaojiang Sun, Changqing Zhao, Hua Li, Bin Ni, Jie Zhao
Background context Laminectomy with posterior lumbar interbody fusion (PLIF) has been shown to achieve satisfactory clinical outcomes, but it leads to potential adverse consequences associated with extensive disruption of posterior bony and soft-tissue structures. Purpose To compare the clinical and radiographic outcomes of bilateral decompression via a unilateral approach (BDUA) with transforaminal lumbar interbody fusion (TLIF) and laminectomy with PLIF in the treatment of degenerative lumbar spondylolisthesis (DLS) with stenosis...
April 14, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28413421/the-effect-of-vitamin-d-and-calcium-plus-vitamin-d-on-leg-cramps-in-pregnant-women-a-randomized-controlled-trial
#17
Ameneh Mansouri, Mojgan Mirghafourvand, Sakineh Mohammad Alizadeh Charandabi, Moslem Najafi
BACKGROUND: This study intended to determine the effects of Vitamin D and calcium-Vitamin D in treating leg cramps in pregnant women. MATERIALS AND METHODS: This study was conducted as a double-blind randomized controlled clinical trial on 126 participants, 18-35-year-old pregnant women with a minimum of two leg cramps per week who were referred to health-care centers in Tabriz-Iran in 2013. The participants were allocated to three 42 member groups using a randomized block design...
2017: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/28412561/metastatic-human-breast-cancer-to-the-spine-produces-mechanical-hyperalgesia-and-gait-deficits-in-rodents
#18
Rachel Sarabia-Estrada, Alejandro Ruiz-Valls, Hugo Guerrero-Cazares, Ana M Ampuero, Ismael Jimenez-Estrada, Samantha De Silva, Lydia J Bernhardt, C Rory Goodwin, A Karim Ahmed, Yuxin Li, Neil A Phillips, Ziya L Gokaslan, Alfredo Quiñones-Hinojosa, Daniel M Sciubba
BACKGROUND CONTEXT: Metastases to the spine are a common source of severe pain in cancer patients. The secondary effects of spinal metastases include pain, bone fractures, hypercalcemia, and neurological deficits. As the disease progresses, pain severity can increase until it becomes refractory to medical treatments and leads to a decreased quality of life for patients. A key obstacle in the study of pain-induced spinal cancer is the lack of reliable and reproducible spine cancer animal models...
April 13, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28411445/comparison-of-the-classifier-oriented-gait-score-and-the-gait-profile-score-based-on-imitated-gait-impairments
#19
Christian Josef, Kröll Josef, Schwameder Hermann
Common summary measures of gait quality such as the Gait Profile Score (GPS) are based on the principle of measuring a distance from the mean pattern of a healthy reference group in a gait pattern vector space. The recently introduced Classifier Oriented Gait Score (COGS) is a pathology specific score that measures this distance in a unique direction, which is indicated by a linear classifier. This approach has potentially improved the discriminatory power to detect subtle changes in gait patterns but does not incorporate a profile of interpretable sub-scores like the GPS...
April 5, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28408083/masquelet-technique-versus-ilizarov-bone-transport-for-reconstruction-of-lower-extremity-bone-defects-following-posttraumatic-osteomyelitis
#20
Kai Tong, Ziyi Zhong, Yulan Peng, Chuangxin Lin, Shenglu Cao, YunPing Yang, Gang Wang
OBJECTIVE: This study was to compare the effectiveness of Masquelet technique versus Ilizarov bone transport in the treatment of lower extremity bone defects following posttraumatic osteomyelitis. PATIENTS AND METHODS: We retrospectively reviewed 39 patients who had been treated at our department for lower extremity bone defects following posttraumatic osteomyelitis. They were 30 males and 9 females with a mean age of 39.18 (range, 12-63 years). The infected bone defects involved 26 tibias and 13 femurs...
April 4, 2017: Injury
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