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https://www.readbyqxmd.com/read/28110390/operative-treatment-of-lateral-ligament-instability
#1
REVIEW
Rachel J Shakked, Sydney Karnovsky, Mark C Drakos
PURPOSE OF REVIEW: Ankle sprains, which account for 40% of sports injuries in the USA, can lead to chronic ankle instability. Chronic ankle instability can be classified as functional, mechanical, or a combination of both and is diagnosed using a combination of a physical exam, an MRI, and stress radiographs. This review focuses on different approaches to treatment, including non-operative and operative techniques, of chronic ankle instability, including reviewing traditional procedures as well as more novel and newer techniques...
January 21, 2017: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/28110171/long-term-usability-and-bio-integration-of-polyimide-based-intra-neural-stimulating-electrodes
#2
S Wurth, M Capogrosso, S Raspopovic, J Gandar, G Federici, N Kinany, A Cutrone, A Piersigilli, N Pavlova, R Guiet, G Taverni, J Rigosa, P Shkorbatova, X Navarro, Q Barraud, G Courtine, S Micera
Stimulation of peripheral nerves has transiently restored lost sensation and has the potential to alleviate motor deficits. However, incomplete characterization of the long-term usability and bio-integration of intra-neural implants has restricted their use for clinical applications. Here, we conducted a longitudinal assessment of the selectivity, stability, functionality, and biocompatibility of polyimide-based intra-neural implants that were inserted in the sciatic nerve of twenty-three healthy adult rats for up to six months...
January 13, 2017: Biomaterials
https://www.readbyqxmd.com/read/28100099/a-user-centered-qualitative-study-on-experiences-with-ankle-foot-orthoses-and-suggestions-for-improved-design
#3
Dymphy van der Wilk, Juha Markus Hijmans, Klaas Postema, Gijsbertus Jacob Verkerke
BACKGROUND: Improving ankle-foot orthosis design can best be done by implementing a user-centered approach. OBJECTIVE: To provide insight into the ideas of ankle-foot orthosis users with flaccid ankle muscle paresis on the importance of activities and suggestions for an improved ankle-foot orthosis design. STUDY DESIGN: A focus-group discussion with eight ankle-foot orthosis users (57 ± 5 years, 50% female). METHODS: Main inclusion criteria were as follows: ⩾18 years, unable to stand on tip-toe and unable to lift toes...
January 1, 2017: Prosthetics and Orthotics International
https://www.readbyqxmd.com/read/28097520/extremity-fractures-associated-with-atvs-and-dirt-bikes-a-10-year-national-epidemiologic-study
#4
D J Lombardo, T Jelsema, A Gambone, M Weisman, G Petersen-Fitts, J D Whaley, V J Sabesan
BACKGROUND: Morbidity and mortality of all-terrain vehicles and dirt bikes have been studied, as well as the association of helmet use and head injury. HYPOTHESIS/PURPOSE: The purpose of this study is to compare and contrast the patterns of extremity fractures associated with ATVs and dirt bikes. We believe there will be unique and potentially preventable injury patterns associated with dirt bikes and three-wheeled ATVs due to the poor stability of these vehicles...
January 17, 2017: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/28093261/experimental-evaluation-of-a-new-morphological-approximation-of-the-articular-surfaces-of-the-ankle-joint
#5
Claudio Belvedere, Sorin Siegler, Andrea Ensini, Jason Toy, Paolo Caravaggi, Ramya Namani, Giulia Giannini, Stefano Durante, Alberto Leardini
The mechanical characteristics of the ankle such as its kinematics and load transfer properties are influenced by the geometry of the articulating surfaces. A recent, image-based study found that these surfaces can be approximated by a saddle-shaped, skewed, truncated cone with its apex oriented laterally. The goal of this study was to establish a reliable experimental technique to study the relationship between the geometry of the articular surfaces of the ankle and its mobility and stability characteristics and to use this technique to determine if morphological approximations of the ankle surfaces based on recent discoveries, produce close to normal behavior...
January 7, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28093252/low-energy-open-ankle-fractures-in-the-elderly-outcome-and-treatment-algorithm
#6
Asanka Wijendra, Rupali Alwe, Michael Lamyman, George A Grammatopoulos, Gregoris Kambouroglou
BACKGROUND: With an aging but still active population, open ankle fractures are increasingly presenting as low energy fragility injuries, sharing many characteristics with that of hip fractures. Yet, there is little in the literature on the management and outcome of these fractures. The primary aim of this study was to describe the outcome following open, ankle fragility fracture. Our secondary aim was to identify potential factors that improved outcome. METHODS: All consecutive, low energy open ankle fractures treated at a Level I Trauma Centre over a five-year period were included...
December 10, 2016: Injury
https://www.readbyqxmd.com/read/28089126/the-all-inside-arthroscopic-brostr%C3%A3-m-procedure-augmented-with-a-proximal-suture-anchor-an-innovative-technique
#7
James M Cottom, Phillip E Richardson
Arthroscopic treatments of chronic lateral ankle stability have been reported in the literature. The authors report on an innovative technique augmenting the "All- Inside" Arthroscopic Broström procedure with an additional suture anchor.
January 6, 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28065472/adaptive-changes-in-running-kinematics-as-a-function-of-head-stability-demands-and-their-effect-on-shock-transmission
#8
Jongil Lim, Michael A Busa, Richard E A van Emmerik, Joseph Hamill
This study aimed to identify adaptive changes in running kinematics and impact shock transmission as a function of head stability requirements. Fifteen strides from twelve recreational runners were collected during preferred speed treadmill running. Head stability demands were manipulated through real-time visual feedback that required head-gaze orientation to maintain within boxes of different sizes, ranging from 21° to 3° of visual angle with 3° decrements. The main outcome measures were tibial and head peak accelerations in the time and frequency domains (impact and active phases), shock transmission from tibia to head, stride parameters, and sagittal plane joint kinematics...
December 29, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/28050532/foot-and-ankle-fractures-during-childhood-review-of-the-literature-and-scientific-evidence-for-appropriate-treatment
#9
REVIEW
Stefan Rammelt, Alexandre Leme Godoy-Santos, Wolfgang Schneiders, Guido Fitze, Hans Zwipp
Foot and ankle fractures represent 12% of all pediatric fractures. Malleolar fractures are the most frequent injuries of the lower limbs. Hindfoot and midfoot fractures are rare, but inadequate treatment for these fractures may results in compartment syndrome, three-dimensional deformities, avascular necrosis and early post-traumatic arthritis, which have a significant impact on overall foot and ankle function. Therefore, the challenges in treating these injuries in children are to achieve adequate diagnosis and precise treatment, while avoiding complications...
November 2016: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/28042996/individual-difference-in-%C3%AE-band-corticomuscular-coherence-and-its-relation-to-force-steadiness-during-isometric-voluntary-ankle-dorsiflexion-in-healthy-humans
#10
Junichi Ushiyama, Junya Yamada, Meigen Liu, Junichi Ushiba
OBJECTIVE: Magnitude of β-band coherent neural activities between the sensorimotor cortex and contracting muscle is known to vary across healthy individuals. To clarify how this variance affects actual motor function, this study examined associations between the corticomuscular coherence (CMC) and force steadiness. METHODS: CMC was calculated between scalp electroencephalograms (EEGs) over the sensorimotor cortex and surface electromyograms (EMGs) from the tibialis anterior muscle during tonic isometric voluntary ankle dorsiflexion at 30% of maximal effort in 22 healthy individuals...
December 7, 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28038340/spatio-temporal-and-kinematic-gait-analysis-in-patients-with-frontotemporal-dementia-and-alzheimer-s-disease-through-3d-motion-capture
#11
Rosaria Rucco, Valeria Agosti, Francesca Jacini, Pierpaolo Sorrentino, Pasquale Varriale, Manuela De Stefano, Graziella Milan, Patrizia Montella, Giuseppe Sorrentino
Alzheimer's disease (AD) and behavioral variant of Frontotemporal Dementia (bvFTD) are characterized respectively by atrophy in the medial temporal lobe with memory loss and prefrontal and anterior temporal degeneration with dysexecutive syndrome. In this study, we hypothesized that specific gait patterns are induced by either frontal or temporal degeneration. To test this hypothesis, we studied the gait pattern in bvFTD (23) and AD (22) patients in single and dual task ("motor" and "cognitive") conditions...
December 21, 2016: Gait & Posture
https://www.readbyqxmd.com/read/28032032/extrinsic-visual-feedback-and-additional-cognitive-physical-demands-affect-single-limb-balance-control-in-individuals-with-ankle-instability
#12
You-Jou Hung, Jacob Miller
AIM: To investigate the impact of extrinsic visual feedback and additional cognitive/physical demands on single-limb balance in individuals with ankle instability. METHODS: Sixteen subjects with ankle instability participated in the study. Ankle instability was identified using the Cumberland Ankle Instability Tool (CAIT). The subject's unstable ankle was examined using the Athletic Single Leg Stability Test of the Biodex Balance System with 4 different protocols: (1) default setting with extrinsic visual feedback from the monitor; (2) no extrinsic visual feedback; (3) no extrinsic visual feedback with cognitive demands; and (4) no extrinsic visual feedback with physical demands...
December 18, 2016: World Journal of Orthopedics
https://www.readbyqxmd.com/read/28026736/-peripheral-factures-of-the-talus-mid-term-results
#13
M Peml, P Kálal, P Kopačka, M Kloub
PURPOSE OF THE STUDY Peripheral fractures of the talus (lateral talar process and posterior talar process) are rare injuries, easy to miss on examination due to their location and clinical manifestation. They account for 0.3% to 1.0% of all fractures of the talus. An incorrect or late treatment of talar process fractures can result in permanent pain, impingement syndrome, healing in malposition, pseudoarthrosis development and also, due to joint instability, in a potential development of severe subtalar arthritis...
2016: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
https://www.readbyqxmd.com/read/28009675/effects-of-foot-and-ankle-devices-on-balance-gait-and-falls-in-adults-with-sensory-perception-loss-a-systematic-review
#14
Joanne Paton, Anna L Hatton, Keith Rome, Bridie Kent
BACKGROUND: Foot and ankle devices are being developed as a method of preventing people with sensory perception loss sustaining a fall. Such devices are believed to work by reducing the likelihood of a fall by improving the balance and gait of the user. OBJECTIVES: The objective of the review was to evaluate the effectiveness of foot and ankle devices for the prevention of falls and the improvement of balance and gait in adults with sensory perception loss. INCLUSION CRITERIA TYPES OF PARTICIPANTS: Participants were community-dwelling adults with bilateral pathological sensory perception loss...
December 2016: JBI Database of Systematic Reviews and Implementation Reports
https://www.readbyqxmd.com/read/28005114/an-update-on-management-of-syndesmosis-injury-a-national-us-database-study
#15
James C Carr, Brian C Werner, Seth R Yarboro
We conducted a study to determine the incidence of syndesmotic injury and stabilization within various ankle fracture patterns along with the rate of syndesmotic implant removal. All data were obtained from a publicly available for-fee healthcare database, the PearlDiver Patient Records Database. Current Procedural Terminology (CPT) codes were used to search the database for cases of fixation of lateral malleolus, bimalleolar, and trimalleolar fractures in addition to syndesmotic fixation and implant removal...
November 2016: American Journal of Orthopedics
https://www.readbyqxmd.com/read/27999535/dynamic-determinants-of-the-uncontrolled-manifold-during-human-quiet-stance
#16
Yasuyuki Suzuki, Hiroki Morimoto, Ken Kiyono, Pietro G Morasso, Taishin Nomura
Human postural sway during stance arises from coordinated multi-joint movements. Thus, a sway trajectory represented by a time-varying postural vector in the multiple-joint-angle-space tends to be constrained to a low-dimensional subspace. It has been proposed that the subspace corresponds to a manifold defined by a kinematic constraint, such that the position of the center of mass (CoM) of the whole body is constant in time, referred to as the kinematic uncontrolled manifold (kinematic-UCM). A control strategy related to this hypothesis (CoM-control-strategy) claims that the central nervous system (CNS) aims to keep the posture close to the kinematic-UCM using a continuous feedback controller, leading to sway patterns that mostly occur within the kinematic-UCM, where no corrective control is exerted...
2016: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/27998241/effects-of-24-weeks-of-whole-body-vibration-versus-multicomponent-training-on-muscle-strength-and-body-composition-in-postmenopausal-women-a-randomized-controlled-trial
#17
Elena Marín-Cascales, Pedro E Alcaraz, Jacobo A Rubio-Arias
The purposes of this study were to analyze the impact of 24 weeks of vibratory and multicomponent training (MT) and to determine what type of training creates greater adaptations on body composition and isokinetic strength of the knee and ankle joints in postmenopausal women. Thirty-eight women (60.0 ± 6.3 years) were randomly assigned to whole body vibration group (WBVG), multicomponent training group (MTG), or a control group. A significant decrease in total fat mass was observed in experimental groups...
January 19, 2017: Rejuvenation Research
https://www.readbyqxmd.com/read/27993094/talonavicular-ligament-prevalence-of-injury-in-ankle-sprains-histological-analysis-and-hypothesis-of-its-biomechanical-function
#18
Miriam De Dea, Constantinos Loizou, Georgina M Allen, David J Wilson, Nick Athanasou, Yoshinobu Uchihara, Paul Cooke, Thomas Cosker
OBJECTIVES: To assess the prevalence of injury of the talonavicular ligament (TNL) in ankle sprains, its anatomy and the stability of the talonavicular joint (TNJ) before and after dividing the TNL in a cadaver. METHODS: During a prospective study of 100 patients to assess the outcome of ankle injuries we noted high incidence of TNL injuries: we will discuss here the TNL findings. Each patient had undergone ultrasound (US) and cone beam computed tomography examination of the ankle...
December 20, 2016: British Journal of Radiology
https://www.readbyqxmd.com/read/27977518/effects-of-2-years-of-exercise-on-gait-impairment-in-people-with-parkinson-disease-the-pret-pd-randomized-trial
#19
Miriam R Rafferty, Janey Prodoehl, Julie A Robichaud, Fabian J David, Cynthia Poon, Lisa C Goelz, David E Vaillancourt, Wendy M Kohrt, Cynthia L Comella, Daniel M Corcos
BACKGROUND AND PURPOSE: This study presents a secondary analysis from the Progressive Resistance Exercise Training in Parkinson Disease (PRET-PD) trial investigating the effects of progressive resistance exercise (PRE) and a Parkinson disease (PD)-specific multimodal exercise program, modified Fitness Counts (mFC), on spatial, temporal, and stability-related gait impairments in people with PD. METHODS: Forty-eight people with PD were randomized to participate in PRE or mFC 2 times a week for 24 months; 38 completed the study...
January 2017: Journal of Neurologic Physical Therapy: JNPT
https://www.readbyqxmd.com/read/27941275/increased-postural-sway-and-changes-in-the-neuromuscular-activities-of-the-ankle-stabilizing-muscles-at-ovulation-in-healthy-young-women
#20
Haneul Lee, JongEun Yim
Lateral ankle sprains are one of the most common injuries among the physically active subjects. Ankle inversion-eversion laxity is greater and dynamic postural control is less in women compared with men. The purpose of this study was to examine differences in postural sway and its effects on the neuromuscular activities of the ankle stabilizing muscles during the menstrual cycle in young women. Fourteen young women with regular menstrual cycles participated in this experiment. Postural sway and electromyographic signals of the lateral gastrocnemius, peroneus longus (PL), and tibialis anterior (TA) were recorded while the participants performed eight different balance tasks at ovulation and early follicular phase during one full menstrual cycle...
2016: Tohoku Journal of Experimental Medicine
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