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Motion analysis

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https://www.readbyqxmd.com/read/28937936/is-high-t-1-slope-a-significant-risk-factor-for-developing-interlaminar-bony-fusion-after-cervical-laminoplasty-a-retrospective-cohort-study
#1
Takeshi Oichi, Yasushi Oshima, Hiroyuki Oka, Yuki Taniguchi, Hirotaka Chikuda, Yoshitaka Matsubayashi, Katsushi Takeshita, Sakae Tanaka
OBJECTIVE Several investigators have reported the occurrence of interlaminar bony fusion after cervical laminoplasty, which is reportedly associated with reduced postoperative cervical range of motion (ROM). However, to the authors' knowledge, no previous study has investigated the characteristics of patients who were likely to develop interlaminar bony fusion after cervical laminoplasty. Therefore, the objective of this study was to investigate the risk factors for interlaminar bony fusion in patients with cervical spondylotic myelopathy (CSM) following cervical laminoplasty and to investigate the effect of interlaminar bony fusion on surgical outcomes...
September 15, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28937464/comparison-of-clinical-outcomes-after-anterior-cervical-discectomy-and-fusion-versus-cervical-total-disk-replacement-in-patients-with-modic-2-changes-on-mri
#2
Jia Li, Di Zhang, Wenyuan Ding, Yingze Zhang, Yong Shen
STUDY DESIGN: A retrospective investigation. OBJECTIVE: The aim of this research is to compare the clinical and radiologic outcomes of patients with Modic-2 changes who underwent anterior cervical discectomy and fusion (ACDF) or cervical total disk replacement (TDR) in single level. SUMMARY OF BACKGROUND DATA: There were few studies focused on the clinical and radiologic outcomes of patients with Modic-2 changes who underwent ACDF or cervical TDR in single level...
October 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28937266/statistical-analysis-of-adcs-and-clinical-biomarkers-in-detecting-acute-renal-transplant-rejection
#3
Elizabeth Hollis, Mohamed Shehata, Mohamed Abou El-Ghar, Mohammed Ghazal, Tarek Eldiasty, Michael Merchant, Andrew E Switala, Ayman El-Baz
OBJECTIVE: To determine which parameters are correlated with transplanted kidney status in patients who have undergone kidney transplantation and can be used for early assessment of acute renal rejection. METHODS: The study included 16 patients with stable renal allografts (Group 1) and 37 patients with rejected allografts (Group 2), determined by renal biopsy post transplantation. All patients' kidneys were evaluated using diffusion-weighted MRI (DW-MRI), in which both clincal and MRI-derived biomarkers were integrated...
September 13, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28935593/factors-affecting-peri-implant-fracture-following-locking-plate-for-osteoporotic-distal-femur-fractures
#4
Ki-Chul Park, Seung-Jae Lim, Young Sik Song, Kyu-Tae Hwang
INTRODUCTION: The purpose of this study is to evaluate the outcomes and to analyze the risk factors for the occurrence of peri-implant fracture after treatment of osteoporotic distal femoral fracturesusing a locking plate. HYPOTHESIS: Risk factors affecting peri-implant fracture exist after locking plate fixation in osteoporotic distal femur fracture. MATERIALS AND METHODS: Eighty nine(88 patients) with osteoporotic distal femoral fractures were evaluated between January2006 and January2014...
September 18, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28934797/percutaneous-endoscopic-debridement-and-drainage-with-four-different-approach-methods-for-the-treatment-of-spinal-infection
#5
Eun-Ji Choi, Su-Young Kim, Hyuck-Goo Kim, Hong-Sik Shon, Tae-Kyun Kim, Kyung-Hoon Kim
BACKGROUND: The incidence of spinal infection seems to be increasing in recent years. Percutaneous endoscopic debridement and drainage (PEDD) has become an effective alternative to extensive open surgery. OBJECTIVE: This study reviewed the charter of patients who received PEDD using 4 different approach methods to evaluate the clinical results. STUDY DESIGN: An Institutional Review Board (IRB)-approved retrospective chart review. SETTING: University hospital inpatient referred to our pain clinic...
September 2017: Pain Physician
https://www.readbyqxmd.com/read/28933605/early-active-rehabilitation-after-arthroscopic-rotator-cuff-repair-a-prospective-randomized-pilot-study
#6
Rudolf Raschhofer, Nikos Poulios, Wolfgang Schimetta, Rüdiger Kisling, Christian Mittermaier
OBJECTIVE: To compare two different rehabilitation strategies, primary passive motion versus early isometric loading of the rotator cuff. DESIGN: Prospective randomized controlled observer-blinded pilot study. SETTING: Institute of Physical Medicine and Rehabilitation. SUBJECTS: Thirty patients after rotator cuff surgery. INTERVENTION: All participants were randomly assigned to one of the two outpatient treatment groups: primary passive motion versus early isometric loading of the rotator cuff...
October 2017: Clinical Rehabilitation
https://www.readbyqxmd.com/read/28933513/effect-of-transcutaneous-electrical-nerve-stimulation-for-pain-control-after-total-knee-arthroplasty-a-systematic-review-and-meta-analysis
#7
Yongjun Zhu, Yuxing Feng, Lihua Peng
INTRODUCTION: Transcutaneous electrical nerve stimulation is a possible adjunctive therapy to pharmacological treatment for controlling pain after total knee arthroplasty. However, the results are controversial. A systematic review and meta-analysis was conducted to explore the effect of transcutaneous electrical nerve stimulation on patients with total knee arthroplasty. METHODS: PubMed, Embase, Web of Science, EBSCO, and Cochrane Library databases were searched systematically...
September 21, 2017: Journal of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28932282/management-of-post-traumatic-stiffness-of-the-shoulder-following-upper-limb-trauma-with-manipulation-under-anaesthetic
#8
Sarah T Lancaster, Thomas N Grove, David A Woods
BACKGROUND: A proportion of patients who sustain upper limb fractures develop post-traumatic stiffness (PTS), which may progress in a similar way to primary frozen shoulder (PFS). We have had success in treating PFS with manipulation under anaesthetic (MUA) and therefore treated PTS using MUA. Oxford Shoulder Scores (OSS), range of motion (ROM) data pre- and post-MUA, and the need for repeat procedure were compared. METHODS: Sixty-four patients with PTS following an upper limb fracture, unresponsive to conservative measures, were seen between 1 January 1999 and 1 November 2015...
October 2017: Shoulder & Elbow
https://www.readbyqxmd.com/read/28931607/direct-observation-of-conformational-population-shifts-in-crystalline-human-hemoglobin
#9
Naoya Shibayama, Mio Ohki, Jeremy Rh Tame, Sam-Yong Park
Although X-ray crystallography is the most commonly used technique for studying the molecular structure of proteins, it is not generally able to monitor the dynamic changes or global domain motions that often underlie allostery. These motions often prevent crystal growth or reduce crystal order. We have recently discovered a crystal form of human hemoglobin that contains three protein molecules allowed to express a full range of quaternary structures, while maintaining strong X-ray diffraction. Here we use this crystal form to investigate the effects of two allosteric effectors, phosphate and bezafibrate, by tracking the structures and functions of the three hemoglobin molecules following the addition of each effector...
September 20, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28931338/functional-outcomes-of-distal-radius-fractures-with-and-without-ulnar-styloid-fractures-a-meta-analysis
#10
Marjolein A M Mulders, Lili J Fuhri Snethlage, Robert-Jan O de Muinck Keizer, J Carel Goslings, Niels W L Schep
The aim of this meta-analysis was to compare the functional outcomes of patients with a distal radius fracture with and without a concomitant fracture of the ulnar styloid process. A systematic literature search was performed to identify all studies comparing patients with a distal radius fracture with and without an ulnar styloid process fracture. The initial search revealed 511 articles, of which 12 articles with a total of 2243 patients were included; 1196 patients with and 1047 patients without an ulnar styloid process fracture...
January 1, 2017: Journal of Hand Surgery, European Volume
https://www.readbyqxmd.com/read/28930881/comparing-the-immediate-effects-of-a-total-motion-release-warm-up-and-a-dynamic-warm-up-protocol-on-the-dominant-shoulder-in-baseball-athletes
#11
Stephen C Gamma, Russell Baker, Alan Nasypany, James May, Jeff G Seegmiller, Steven M Iorio
PURPOSE: A decrease in total range of motion (ROM) of the dominant shoulder may predispose baseball athletes to increased shoulder injury risk; the most effective technique for improving ROM is unknown. The purpose of this study was to compare the immediate effects of Total Motion Release® (TMR) to a generic dynamic warm-up program in baseball athletes. METHODS: Baseball athletes (n=20) were randomly assigned to an intervention group: TMR® group (TMRG; n=10) or traditional warm-up group (TWG; n=10)...
September 11, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28929926/three-dimensional-kinematic-analysis-and-power-output-of-elite-flat-water-kayakers
#12
Anna Bjerkefors, Olga Tarassova, Johanna S Rosén, Pascal Zakaria, Anton Arndt
The purpose was to examine power output and three-dimensional (3D) kinematic variables in the upper limbs, lower limbs and trunk in elite flat-water kayakers during kayak ergometer paddling. An additional purpose was to analyse possible changes in kinematics with increased intensity and differences between body sides. Six male and four female international level flat-water kayakers participated. Kinematic and kinetic data were collected during three tasks; low (IntL), high (IntH) and maximal (IntM) intensities...
September 20, 2017: Sports Biomechanics
https://www.readbyqxmd.com/read/28929348/-comparative-analysis-of-light-sensitivity-depth-and-motion-perception-in-animals-and-humans
#13
REVIEW
F Schaeffel
BACKGROUND: This study examined how humans perform regarding light sensitivity, depth perception and motion vision in comparison to various animals. OBJECTIVE: The parameters that limit the performance of the visual system for these different functions were examined. METHODS: This study was based on literature studies (search in PubMed) and own results. RESULTS: Light sensitivity is limited by the brightness of the retinal image, which in turn is determined by the f‑number of the eye...
September 19, 2017: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/28929210/discrimination-of-malignant-versus-benign-mediastinal-lymph-nodes-using-diffusion-mri-with-an-ivim-model
#14
Li-Ping Qi, Wan-Pu Yan, Ke-Neng Chen, Zheng Zhong, Xiao-Ting Li, Kejia Cai, Ying-Shi Sun, Xiaohong Joe Zhou
OBJECTIVES: To investigate the value of an intravoxel incoherent motion (IVIM) diffusion model for discriminating malignant versus benign mediastinal lymph nodes (MLN). METHODS: Thirty-five subjects with enlarged MLN were scanned at 1.5 Tesla. Diffusion-weighted imaging was performed with eight b-values. IVIM parameters D, D*, and f, as well as apparent diffusion coefficient (ADC) from a mono-exponential model were obtained. 91 nodes (49 malignant and 42 benign) were analysed with pathologic (n=90) or radiologic (n=1) confirmations...
September 19, 2017: European Radiology
https://www.readbyqxmd.com/read/28927669/are-the-hamstrings-from-the-drive-leg-or-landing-leg-more-active-in-baseball-pitchers-an-electromyographic-study
#15
Brandon J Erickson, Antonia Zaferiou, Peter N Chalmers, Deana Ruby, Phillip Malloy, Timothy J Luchetti, Nikhil N Verma, Anthony A Romeo
BACKGROUND: Ulnar collateral ligament reconstruction (UCLR) has become a common procedure among baseball players of all levels. There are several graft choices in performing UCLR, one of which is a hamstring (gracilis or semitendinosus) autograft. It is unclear whether the hamstring muscle from a pitcher's drive leg (ipsilateral side of the UCLR) or landing leg (contralateral side of the UCLR) is more active during the pitching motion. We hypothesized that the landing leg semitendinosus will be more electromyographically active than the drive leg...
September 15, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28927643/a-combined-kinematic-and-kinetic-analysis-at-the-residuum-socket-interface-of-a-knee-disarticulation-amputee
#16
Jinghua Tang, Michael McGrath, Nick Hale, Liudi Jiang, Dan Bader, Piotr Laszczak, David Moser, Saeed Zahedi
The bespoke interface between a lower limb residuum and a prosthetic socket is critical for an amputee's comfort and overall rehabilitation outcomes. Analysis of interface kinematics and kinetics is important to gain full understanding of the interface biomechanics, which could aid clinical socket fit, rehabilitation and amputee care. This pilot study aims to investigate the dynamic correlation between kinematic movement and kinetic stresses at the interface during walking tests on different terrains. One male, knee disarticulation amputee participated in the study...
September 15, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28927289/accounting-for-non-gaussian-sources-of-spatial-correlation-in-parametric-fmri-paradigms-i-revisiting-cluster-based-inferences
#17
Kaundinya Gopinath, Venkatagiri Krishnamurthy, K Sathian
In a recent study Eklund et al. (Eklund et al., 2016) employing resting state functional magnetic resonance imaging (rsfMRI) data as a surrogate for null fMRI datasets posited that cluster-wise family-wise error (FWE) rate corrected inferences made using parametric statistical methods in fMRI studies over the past two decades may have been invalid, particularly for cluster defining thresholds (CDTs) less stringent than p < 0.001; principally because the spatial autocorrelation functions (sACF) of fMRI data had been modeled incorrectly to follow a Gaussian form, whereas empirical data suggested otherwise (Eklund et al...
September 19, 2017: Brain Connectivity
https://www.readbyqxmd.com/read/28926386/effect-of-vascular-injury-on-functional-outcome-in-knees-with-multi-ligament-injury-a-matched-cohort-analysis
#18
Thomas L Sanders, Nicholas R Johnson, Nathan M Levy, Peter A Cole, Aaron J Krych, Michael Stuart, Bruce A Levy
BACKGROUND: Multi-ligament knee injury (MLKI) associated with knee dislocation can result in vascular injury. The purpose of this study was to compare knee function after MLKI between patients with a vascular injury requiring popliteal artery bypass grafting and patients without vascular involvement. Additionally, factors associated with poor knee function in patients who had MLKI with vascular injury were evaluated. METHODS: This retrospective study identified patients with an MLKI between 1992 and 2014...
September 20, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28926381/total-elbow-arthroplasty-for-distal-humeral-fractures-a-ten-year-minimum-follow-up-study
#19
Raul Barco, Philipp N Streubel, Bernard F Morrey, Joaquin Sanchez-Sotelo
BACKGROUND: Total elbow arthroplasty is commonly considered for elderly patients with comminuted distal humeral fractures. Satisfactory short-term outcomes have been reported, but long-term outcomes are unknown. Our purpose was to assess the long-term outcomes of total elbow arthroplasty after distal humeral fracture and to determine differences between elbows with or without inflammatory arthritis at the time of fracture. METHODS: Forty-four total elbow arthroplasties were performed after distal humeral fracture; those patients were followed for a minimum of 10 years and were evaluated with regard to pain, motion, Mayo Elbow Performance Scores, complications, and reoperations...
September 20, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28926061/network-based-modelling-and-percolation-analysis-of-conformational-dynamics-and-activation-in-the-cdk2-and-cdk4-proteins-dynamic-and-energetic-polarization-of-the-kinase-lobes-may-determine-divergence-of-the-regulatory-mechanisms
#20
G M Verkhivker
The overarching goal of delineating molecular principles underlying differentiation of the activation mechanisms in cyclin-dependent kinases (CDKs) is important for understanding regulatory divergences among closely related kinases which can be exploited in drug discovery of targeted and allosteric inhibitors. To systematically characterize dynamic, energetic and network signatures of the activation mechanisms, we combined atomistic simulations and elastic network modeling with the analysis of the residue interaction networks and rigidity decomposition of the CDK2-cyclin A and CDK4-cyclin D1/D3 complexes...
September 19, 2017: Molecular BioSystems
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