keyword
MENU ▼
Read by QxMD icon Read
search

postural alignment

keyword
https://www.readbyqxmd.com/read/29310920/total-hip-arthroplasty-patients-with-fixed-spinopelvic-alignment-are-at-higher-risk-of-hip-dislocation
#1
Christina I Esposito, Kaitlin M Carroll, Peter K Sculco, Douglas E Padgett, Seth A Jerabek, David J Mayman
BACKGROUND: Sitting radiographs have been used as a pre-operative tool to plan patient-specific total hip arthroplasty (THA) component position that would improve hip stability. Previous work has demonstrated that spinal mobility may impact functional acetabular position when seated. We sought to determine whether patients who dislocate following THA have different sitting spinopelvic alignment or acetabular component orientation compared to patients who did not dislocate. METHODS: A consecutive series of 1000 patients underwent post-operative low-dose biplanar spine-to-ankle lateral radiographs in standing and sitting positions 1 year following THA...
December 13, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29277028/are-we-simplifying-balance-evaluation-in-adolescent-idiopathic-scoliosis
#2
Saba Pasha, Keith Baldwin
BACKGROUND: Clinical evaluation of the postural balance in adolescent idiopathic scoliosis has been measured by sagittal vertical axis and frontal balance. The impact of the scoliotic deformity in three planes on balance has not been fully investigated. METHODS: 47 right thoracic and left lumbar curves adolescent idiopathic scoliosis and 10 non-scoliotic controls were registered prospectively. 13 spinopelvic postural parameters were calculated from the 3-dimantional reconstructions of X-rays...
November 29, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/29224907/quantitative-postural-analysis-of-children-with-congenital-visual-impairment
#3
Michelle de Pádua, Juliana F Sauer, Silvia M A João
OBJECTIVES: The aim of this study was to compare the postural alignment of children with visual impairment with that of children without visual impairment. METHODS: The sample studied was 74 children of both sexes ages 5 to 12 years. Of these, 34 had visual impairment and 40 were control children. Digital photos from the standing position were used to analyze posture. Postural variables, such as tilt of the head, shoulder position, scapula position, lateral deviation of the spine, ankle position in the frontal plane and head posture, angle of thoracic kyphosis, angle of lumbar lordosis, pelvis position, and knee position in the frontal and sagittal planes, were measured with the Postural Assessment Software 0...
December 7, 2017: Journal of Manipulative and Physiological Therapeutics
https://www.readbyqxmd.com/read/29200642/the-effects-of-calcaneal-posture-on-thoracolumbar-alignment-in-a-standing-position
#4
Seon-Chil Kim, Jae-Hoon Yi, Sang-Woo Jung, Dong-Kwon Seo
[Purpose] Severe calcaneus misalignment is correlated with low back pain, and affects pelvic alignment. However, little has been published with regard to the influence of pronation and supination on trunk alignment. Therefore, the present study aimed to investigate the influence of calcaneal inversion on pelvic and trunk alignment. [Subjects and Methods] A 3-dimensional motion analysis system was used to assess pelvic and trunk alignment in 10 healthy male subjects with unilateral and bilateral calcaneus inversion...
November 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/29196716/disrupted-superior-collicular-activity-may-reveal-cervical-dystonia-disease-pathomechanisms
#5
Eavan M Mc Govern, Owen Killian, Shruti Narasimham, Brendan Quinlivan, John B Butler, Rebecca Beck, Ines Beiser, Laura W Williams, Ronan P Killeen, Michael Farrell, Sean O'Riordan, Richard B Reilly, Michael Hutchinson
Cervical dystonia is a common neurological movement disorder characterised by muscle contractions causing abnormal movements and postures affecting the head and neck. The neural networks underpinning this condition are incompletely understood. While animal models suggest a role for the superior colliculus in its pathophysiology, this link has yet to be established in humans. The present experiment was designed to test the hypothesis that disrupted superior collicular processing is evident in affected patients and in relatives harbouring a disease-specific endophenotype (abnormal temporal discrimination)...
December 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29156321/postural-changes-in-orthodontic-patients-treated-with-clear-aligners-a-rasterstereographic-study
#6
Simone Parrini, Benedetta Comba, Gabriele Rossini, Serena Ravera, Giovanni Cugliari, Ilaria De Giorgi, Andrea Deregibus, Tommaso Castroflorio
BACKGROUND: Correlation between malocclusions and body posture has been discussed in the last decades, but there is still a lack of consensus in existing literature. Rasterstereography allows tridimensional reconstruction of the spine, starting from the back surface analysis. So far studies which tested modifications of rasterstereographic parameters during orthodontic treatment, comparing with those obtained from untreated control group, are not available. Clear aligner treatment produces alteration of vertical height due to the occlusal coverage and, subsequently, a stimulation of periodontal receptors which causes an inhibition of the jaw closing muscles and, hypothetically, changes in mandibular posture...
November 14, 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/29150315/surgical-options-for-osteoporotic-vertebral-compression-fractures-complicated-with-spinal-deformity-and-neurologic-deficit
#7
Kalliopi Alpantaki, Michael Dohm, Panagiotis Korovessis, Alexander G Hadjipavlou
INTRODUCTION: This paper describes surgical options for Osteoporotic vertebral compression fracture (OVCF) with acute flexible or chronic rigid kyphosis, and pseudarthrosis complicated with pain and neurologic deficit. METHODS: This study has two components. a) A prospective clinical study of surgical treatment of 31 patients (age: 69±11 years) with either acute flexible or progressive pseudarthrotic kyphosis manifested with severe pain or neurological deficit between 2010 and 2014...
November 12, 2017: Injury
https://www.readbyqxmd.com/read/29122194/multi-directional-one-handed-strength-assessments-using-anybody-modeling-systems
#8
Divyaksh Subhash Chander, Maria Pia Cavatorta
Digital human modeling tools support proactive ergonomics in optimizing work tasks and workplace layouts. Empirical-statistical model based tools are often used to estimate the force exertion capability of the operators. This work is intended to serve as an initial probing into the usability of a musculoskeletal model based software, AnyBody Modeling Systems (AMS), in evaluating the force exertion capability at different points in the workspace and for various exertion directions. As a first step, it focuses on the modeling approach and the accuracy of one-handed isometric strength estimates of AMS...
February 2018: Applied Ergonomics
https://www.readbyqxmd.com/read/29114765/operator-bias-errors-are-reduced-using-standing-marker-alignment-device-for-repeated-visit-studies
#9
Laura Hutchinson, Joel B Schwartz, Amy M Morton, Irene S Davis, Kevin Deluzio, Michael J Rainbow
When optical motion capture is used for motion analysis, reflective markers or a digitizer are typically used to record the location of anatomical landmarks identified through palpation. The landmarks are then used to construct anatomical coordinate systems. Failure to consistently identify landmarks through palpation over repeat tests creates artifacts in the kinematic waveforms. The purpose of this work was to improve intra- and inter-rater reliability in determining anatomical landmarks and the associated anatomical coordinate systems using a Marker Alignment Device...
November 6, 2017: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/29110218/cervical-sagittal-balance-a-biomechanical-perspective-can-help-clinical-practice
#10
REVIEW
Avinash G Patwardhan, Saeed Khayatzadeh, Robert M Havey, Leonard I Voronov, Zachary A Smith, Olivia Kalmanson, Alexander J Ghanayem, William Sears
PURPOSE: In this article, we summarize our work on understanding the influence of cervical sagittal malalignment on the mechanics of the cervical spine. METHODS: Biomechanical studies were performed using an ex vivo laboratory model to study the kinematic and kinetic response of human cervical spine specimens in the setting of cervical sagittal imbalance. The model allowed controlled variations of C2-C7 Sagittal Vertical Alignment (C2-C7 SVA) and T1-Slope so that clinically relevant sagittally malaligned profiles could be prescribed, while maintaining horizontal gaze, and their biomechanical consequences studied...
November 6, 2017: European Spine Journal
https://www.readbyqxmd.com/read/29103927/three-dimensional-gait-analysis-reveals-dynamic-alignment-change-in-a-patient-with-dropped-head-syndrome-a-case-report
#11
Kousei Miura, Hideki Kadone, Masao Koda, Hiroshi Kumagai, Katsuya Nagashima, Kengo Fujii, Hiroshi Noguchi, Toru Funayama, Tetsuya Abe, Takeo Furuya, Masashi Yamazaki
Dropped head syndrome (DHS) is a cervical kyphotic deformity caused by apparent weakness of the neck extensor muscles. We often encounter patients whose symptoms, including impaired forward vision and neck pain, deteriorate while walking. This is the first report of a case of dynamic spinal alignment change in a patient with DHS during walking using three-dimensional gait analysis. A 78-year-old Japanese woman complained of impaired forward vision and neck pain while walking. Her radiograph showed severe cervical kyphosis...
November 3, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/29076333/the-influence-of-natural-head-position-on-the-cervical-sagittal-alignment
#12
Kuan Wang, Zhen Deng,, Zhengyan Li, Huihao Wang, Hongsheng Zhan
Introduction: This study investigated the relationship between the parameters related to the natural head position and cervical segmental angles and alignment of patients with neck pain. Material and Methods: The lateral radiographs of the cervical spine were collected from 103 patients and were used to retrospectively analyze the correlation between the natural head position, cervical local sagittal angles, and alignment. Sagittal measurements were as follows: cervical curvature classification, slope of McGregor's line (McGS), local sagittal angles (C0–C2 angle, C2–C5 angle, C5–C7 angle, and C2–C7 angle), T1 slope, center of gravity of the head to sagittal vertical axis (CG–C7 SVA), and local sagittal alignment (C0–C2 SVA and C2–C7 SVA)...
2017: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29065584/the-influence-of-natural-head-position-on-the-cervical-sagittal-alignment
#13
Kuan Wang, Zhen Deng, Zhengyan Li, Huihao Wang, Hongsheng Zhan
INTRODUCTION: This study investigated the relationship between the parameters related to the natural head position and cervical segmental angles and alignment of patients with neck pain. MATERIAL AND METHODS: The lateral radiographs of the cervical spine were collected from 103 patients and were used to retrospectively analyze the correlation between the natural head position, cervical local sagittal angles, and alignment. Sagittal measurements were as follows: cervical curvature classification, slope of McGregor's line (McGS), local sagittal angles (C0-C2 angle, C2-C5 angle, C5-C7 angle, and C2-C7 angle), T1 slope, center of gravity of the head to sagittal vertical axis (CG-C7 SVA), and local sagittal alignment (C0-C2 SVA and C2-C7 SVA)...
2017: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29055741/radiologically-defining-horizontal-gaze-using-eos-imaging-a-prospective-study-of-healthy-subjects-and-a-retrospective-audit
#14
Hwee Weng Dennis Hey, Kimberly-Anne Tan, Vivienne Chien-Lin Ho, Syifa Bte Azhar, Joel-Louis Lim, Gabriel Ka-Po Liu, Hee-Kit Wong
BACKGROUND CONTEXT: As sagittal alignment of the cervical spine is important for maintaining horizontal gaze, it is important to determine the former for surgical correction. However, horizontal gaze remains poorly-defined from a radiological point of view. PURPOSE: The objective of this study was to establish radiological criteria to define horizontal gaze. STUDY DESIGN/SETTING: This study was conducted at a tertiary health-care institution over a 1-month period...
October 18, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29037657/procedures-of-assessment-on-the-quantification-of-thoracic-kyphosis-and-lumbar-lordosis-by-radiography-and-photogrammetry-a-literature-review
#15
Alessandra Beggiato Porto, Victor Hugo Alves Okazaki
The quantification of thoracic kyphosis and lumbar lordosis can be assessed in different ways; among them radiography and photogrammetry. However, the assessment procedures are not consistent in the literature for either method. The objective of this study was to conduct a literature review about postural assessment through radiography and photogrammetry, for delineating the procedures for both methods. In total 38 studies were selected by an online search in the MEDLINE and LILACS databases with the keywords: radiograph and posture, postural alignment, photogrammetry or photometry or biophotogrammetry...
October 2017: Journal of Bodywork and Movement Therapies
https://www.readbyqxmd.com/read/28985696/a-new-prosthetic-alignment-device-to-read-and-record-prosthesis-alignment-data
#16
Gholamhossein Pirouzi, Noor Azuan Abu Osman, Sadeeq Ali, Majid Davoodi Makinejad
Prosthetic alignment is an essential process to rehabilitate patients with amputations. This study presents, for the first time, an invented device to read and record prosthesis alignment data. The digital device consists of seven main parts: the trigger, internal shaft, shell, sensor adjustment button, digital display, sliding shell, and tip. The alignment data were read and recorded by the user or a computer to replicate prosthesis adjustment for future use or examine the sequence of changes in alignment and its effect on the posture of the patient...
October 1, 2017: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/28978769/case-studies-in-neuroscience-a-dissociation-of-balance-and-posture-demonstrated-by-camptocormia
#17
Rebecca J St George, Victor S Gurfinkel, Jeff Kraakevik, John G Nutt, Fay B Horak
Upright stance in humans requires an intricate exchange between the neural mechanisms that control balance and those that control posture; however, the distinction between these control systems is hard to discern in healthy subjects. By studying balance and postural control of a participant with camptocormia - an involuntary flexion of the trunk during standing that resolves when supine - a divergence between balance and postural control was revealed. A kinematic and kinetic investigation of standing and walking showed a stereotyped flexion of the upper body by almost 80 degrees over a few minutes, and yet the participant's ability to control their center of mass within their base of support and to compensate for external perturbations remained intact...
October 4, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28971359/baropodometry-on-patients-after-total-knee-arthroplasty
#18
A Notarnicola, G Maccagnano, A Fiore, A Spinarelli, L Montenegro, M Paoloni, F Pastore, S Tafuri, B Moretti
PURPOSE: It is well known that total knee replacement surgery decreases pain and improves function, but the effect on postural assessment needs to be studied better with the use of new technological devices. Total knee arthroplasty (TKA) improves motor coordination and stability of the knee. On the other hand, changing joint functionality can modify the balance. The aim of this trial is to record and analyze the static and dynamic baropodometric data of patients in the first few months following joint replacement...
October 3, 2017: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/28962913/analysis-of-cervical-spine-alignment-in-currently-asymptomatic-individuals-prevalence-of-kyphotic-posture-and-its-relationship-with-other-spinopelvic-parameters
#19
Seok Woo Kim, Tae-Hwan Kim, Do Hee Bok, Chulyoung Jang, Myung Ho Yang, Seonjong Lee, Je Hyun Yoo, Yoon Hae Kwak, Jae Keun Oh
BACKGROUND CONTEXT: Many studies tend to characterize cervical kyphosis as a significant clinical condition that needs to be treated. Moreover, opinions vary on whether cervical kyphosis should be considered a pathologic status or a natural occurrence in asymptomatic people. PURPOSE: This study aimed to determine the frequency of kyphotic posture of the cervical spine in currently asymptomatic individuals and to ascertain its relation with other spinopelvic parameters...
September 27, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28957404/megachiropteran-bats-profoundly-unique-from-microchiropterans-in-climbing-and-walking-locomotion-evolutionary-implications
#20
Rick A Adams, Richard T Carter
Understandably, most locomotor analyses of bats have focused on flight mechanics and behaviors. However, we investigated nonflight locomotion in an effort to glean deeper insights into the evolutionary history of bats. We used high-speed video (300 Hz) to film and compare walking and climbing mechanics and kinematics between several species of the suborders Megachiroptera (Pteropodidae) versus Microchiroptera (Vespertilionidae and Phyllostomatidae). We found fundamentally distinctive behaviors, functional abilities, and performance outcomes between groups, but nearly homogeneous outcomes within groups...
2017: PloS One
keyword
keyword
74660
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"