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Ankle stability

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https://www.readbyqxmd.com/read/29243137/activation-of-ankle-muscles-following-rapid-displacement-of-a-light-touch-contact-during-treadmill-walking
#1
Tania Shiva, John E Misiaszek
The first exposure of a rapid displacement of a light touch reference induces an inappropriate balance corrective response during standing in a proportion of participants that is extinguished with repeated exposures. We hypothesized that if the spatial touch reference was critical to performing of a task the evoked response would be more consistently expressed across participants and observed with repeated exposures to the disturbance. To test this, 20 participants received either forward (N = 10) or backward right-touch displacements at right-heel strike during motorized treadmill walking without visual feedback...
December 15, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/29235235/review-article-best-practice-management-of-common-ankle-and-foot-injuries-in-the-emergency-department-part-2-of-the-musculoskeletal-injuries-rapid-review-series
#2
REVIEW
Kirsten Strudwick, Megan McPhee, Anthony Bell, Melinda Martin-Khan, Trevor Russell
Ankle and foot injuries are the most common musculoskeletal injuries presenting to Australian EDs and are associated with a large societal and economic impact. The quality of ED care provided to patients with ankle and foot fractures or soft tissue injuries is critical to ensure the best possible outcomes for the patient. This rapid review investigated best practice for the assessment and management of common ankle and foot injuries in the ED. Databases including PubMed, CINAHL, EMBASE, TRIP and the grey literature, including relevant organisational websites, were searched in 2017...
December 13, 2017: Emergency Medicine Australasia: EMA
https://www.readbyqxmd.com/read/29224059/lower-complication-rate-and-faster-return-to-sports-in-patients-with-acute-syndesmotic-rupture-treated-with-a-new-knotless-suture-button-device
#3
Christian Colcuc, Marc Blank, Thomas Stein, Florian Raimann, Sanjay Weber-Spickschen, Sebastian Fischer, Reinhard Hoffmann
PURPOSE: Suture button devices for tibiofibular syndesmosis injuries provide semirigid dynamic stabilization, but complications including knot irritation have been reported. No randomized trials of the new knotless suture button devices have been performed. We hypothesized that knotless suture button devices eliminate knot irritation and facilitate quicker return to sports. This study was performed to compare the clinical outcomes, complication rates, and time to return to sports between a new knotless suture button device and syndesmotic screw fixation...
December 9, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29210020/effects-of-visual-and-cognitive-interference-on-joint-contributions-in-perturbed-standing-a-temporal-and-spectral-analysis
#4
Mohammed N Ashtiani, Mahmood-Reza Azghani
Postural balance requires using joint strategies which may be changed from normal conditions by interfering with the sensory information. The goal of the present study was to quantitatively evaluate the role of the joint mechanisms during perturbed stance. Visual and cognitive interference was imposed to sixteen healthy young males under rotational toes-down or up perturbations. Power spectral analysis was employed to distinguish the joint contribution and their in- or out-phase co-works. Results showed that addition of cognitive loads reduce the stability by increasing the center of mass (CoM) power to three times greater...
December 5, 2017: Australasian Physical & Engineering Sciences in Medicine
https://www.readbyqxmd.com/read/29203001/technique-using-the-modified-rolling-hitch-for-split-peroneus-brevis-tendon-transfer-in-lateral-ankle-stabilization
#5
Chih-Kai Hong, Chen-Hao Chiang, Yi-Hung Huang, Wei-Ren Su, Sheng-Pin Lo
We report our technique for split peroneus brevis lateral ankle stabilization using the modified rolling hitch for tendon graft fixation. Applying the modified rolling hitch for tendon grasping in this procedure was useful, and it could decrease the surgical time and avoid the tendon injury caused by the needle.
December 2017: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29202990/biological-reconstruction-of-large-osteochondral-lesions-of-the-talar-dome-with-a-modified-sandwich-technique-midterm-results
#6
Boguslaw Sadlik, Lukasz Kolodziej, Adrian Blasiak, Mateusz Szymczak, Bartłomiej Warchal
BACKGROUND: Surgical treatment for large osteochondral lesions of the talar dome (OLTD) must restore the convexity and curvature of the talus. Here, we present midterm results and describe the modified "sandwich" reconstruction procedure. Bone defects were restored using a biological inlay consists of autologous bone chips that were mixed with bone marrow concentrate and fibrin glue and covered with a xenogeneic collagen membrane infiltrated with bone marrow concentrate and stabilized by fibrin glue...
December 2017: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29193314/effects-of-wobble-board-training-on-single-leg-landing-neuromechanics
#7
Priscila de Brito Silva, Anderson Souza Castelo Oliveira, Natalie Mrachacz-Kersting, Uwe Gustav Kersting
Balance training programs have been shown to reduce ankle sprain injuries in sports, but little is known about the transfer from this training modality to motor coordination and ankle joint biomechanics in sport specific movements. This study aimed to investigate the effects of wobble board training on motor coordination and ankle mechanics during early single-leg landing from a lateral jump. Twenty-two healthy men were randomly assigned to either a control or a training group, who engaged in four weeks of wobble board training...
November 29, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29189883/arthroscopic-treatment-combined-with-the-ankle-stabilization-procedure-is-effective-for-sinus-tarsi-syndrome-in-patients-with-chronic-ankle-instability
#8
Sheng-Kun Li, Yu-Jie Song, Hong Li, Baofu Wei, Ying-Hui Hua, Hong-Yun Li
PURPOSE: This study aimed to investigate the results of arthroscopic treatment combined with ankle stabilization procedure for sinus tarsi syndrome (STS) in patients with chronic ankle instability (CAI). METHODS: A total of 57 patients (31 males and 26 females, average age 29.9 ± 8.4 years ranging from 15 to 52 years) with STS and CAI who accepted operation from 2013 to 2015 were included in this retrospective study. Surgical procedures included thorough tarsal sinus debridement and repair or reconstruction of lateral ankle ligaments according to the quality of ligaments...
November 30, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29184756/balance-control-during-gait-initiation-state-of-the-art-and-research-perspectives
#9
REVIEW
Eric Yiou, Teddy Caderby, Arnaud Delafontaine, Paul Fourcade, Jean-Louis Honeine
It is well known that balance control is affected by aging, neurological and orthopedic conditions. Poor balance control during gait and postural maintenance are associated with disability, falls and increased mortality. Gait initiation - the transient period between the quiet standing posture and steady state walking - is a functional task that is classically used in the literature to investigate how the central nervous system (CNS) controls balance during a whole-body movement involving change in the base of support dimensions and center of mass progression...
November 18, 2017: World Journal of Orthopedics
https://www.readbyqxmd.com/read/29184493/step-to-step-ankle-inversion-eversion-torque-modulation-can-reduce-effort-associated-with-balance
#10
Myunghee Kim, Steven H Collins
Below-knee amputation is associated with higher energy expenditure during walking, partially due to difficulty maintaining balance. We previously found that once-per-step push-off work control can reduce balance-related effort, both in simulation and in experiments with human participants. Simulations also suggested that changing ankle inversion/eversion torque on each step, in response to changes in body state, could assist with balance. In this study, we investigated the effects of ankle inversion/eversion torque modulation on balance-related effort among amputees (N = 5) using a multi-actuated ankle-foot prosthesis emulator...
2017: Frontiers in Neurorobotics
https://www.readbyqxmd.com/read/29181560/stability-and-alignment-do-not-improve-by-using-patient-specific-instrumentation-in-total-knee-arthroplasty-a-randomized-controlled-trial
#11
Nienke M Kosse, Petra J C Heesterbeek, Janneke J P Schimmel, Gijs G van Hellemondt, Ate B Wymenga, Koen C Defoort
PURPOSE: The primary aim of the study was to examine stability and alignment after total knee arthroplasty (TKA) using patient-specific instrumentation (PSI) and conventional instrumentation (CI). The hypothesis was that stability and alignment would be better using PSI than CI, 12 months postoperatively. The secondary aim included the evaluation of clinical outcomes after TKA. METHODS: In this prospective randomized controlled trial, 42 patients with knee osteoarthritis received a Genesis II PS prosthesis with either PSI or CI...
November 28, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29181358/a-case-report-upper-thoracic-chance-fracture-with-monoplegia%C3%A2-an-unusual-presentation
#12
Ketan Shripad Khurjeka, Himanshu Gurunath Kulkarni, Shailesh Hadgaonkar, Ajay Kothari, Ashok Shyam, Parag Sancheti
Introduction: Chance fractures, the horizontal splitting vertebral fractures caused by flexion distraction mechanism, are inherently unstable fractures. These fractures can land up with significant visceral injuries. There are most commonly seen at thoracolumbar junction or in lumbar spine due to their high mobility. These fractures are extremely rare in the thoracic spine due to the rigidity of thoracic spine rendered by attachment of ribs. Furthermore, the level of injury makes neurological complications even graver...
July 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/29178861/contact-stresses-pressure-and-area-in-a-fixed-bearing-total-ankle-replacement-a-finite-element-analysis
#13
Nicolo Martinelli, Silvia Baretta, Jenny Pagano, Alberto Bianchi, Tomaso Villa, Gloria Casaroli, Fabio Galbusera
BACKGROUND: Mobile-bearing ankle implants with good clinical results continued to increase the popularity of total ankle arthroplasty to address endstage ankle osteoarthritis preserving joint movement. Alternative solutions used fixed-bearing designs, which increase stability and reduce the risk of bearing dislocation, but with a theoretical increase of contact stresses leading to a higher polyethylene wear. The purpose of this study was to investigate the contact stresses, pressure and area in the polyethylene component of a new total ankle replacement with a fixed-bearing design, using 3D finite element analysis...
November 25, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29178310/a-new-intraoperative-syndesmosis-instability-classification-system-utility-and-medium-term-results-in-closed-displaced-ankle-fractures
#14
Hai-Bin Qiu, Jun Jiang, Daniel Porter
OBJECTIVE: To investigate the utility and medium-term results of a new intra-operative classification system for distal tibiofibular syndesmosis injury in ankle fractures. METHODS: Between January 2010 and January 2015, 116 patients diagnosed with displaced closed Weber B and C ankle fractures were treated in our department. The etiology of injury was 56 cases of fall-sprain, 36 of traffic injury, 14 of fall from a height, and 10 of multiple injuries. After fixation of the fibular fracture, we classify syndesmosis stability as either normal or one of three grades of instability using the fibular hook traction test...
November 2017: Orthopaedic Surgery
https://www.readbyqxmd.com/read/29177685/postural-stability-deficit-could-predict-ankle-sprains-a-systematic-review
#15
REVIEW
Alberto Grassi, Konstantinos Alexiou, Annunziato Amendola, Claude T Moorman, Kristian Samuelsson, Olufemi R Ayeni, Stefano Zaffagnini, Timothy Sell
PURPOSE: To perform a systematic review aimed to determine (1) if the postural stability deficit represents a risk factor for ankle sprains; (2) the most effective postural stability evaluation to predict ankle sprains and (3) eventual confounding factors that could influence postural stability and ankle sprain risk. METHODS: A systematic electronic search was performed in MEDLINE, EMBASE and CINAHL using the search terms (balance) OR (postural stability) matched with (lower limb) OR (ankle) OR (foot) and (sprain) OR (injury) on October 2 2017...
November 25, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29175719/does-chronic-ankle-instability-influence-lower-extremity-muscle-activation-of-females-during-landing
#16
Yumeng Li, Jupil Ko, Marika A Walker, Cathleen N Brown, Julianne D Schmidt, Seock-Ho Kim, Kathy J Simpson
Much remains unclear about how chronic ankle instability (CAI) could affect knee muscle activations and interact with knee biomechanics. Therefore, the purpose of this study was to assess the influence of CAI on the lower extremity muscle activation at the ankle and knee joints during landings on a tilted surface. A surface electromyography system and two force plates were used to collect lower extremity muscle activation of 21 young female individuals with CAI and 21 pair-matched controls during a double-leg landing with test limb landing on the tilted surface...
November 22, 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/29175061/sex-specific-reliability-and-multidimensional-stability-of-responses-to-tests-assessing-neuromuscular-function
#17
V Bernecke, K Pukenas, L Daniuseviciute, N Baranauskiene, H Paulauskas, N Eimantas, M Brazaitis
The objective of this study was to estimate sex-specific effects in the test-retest cross-reliability of peripheral and central changes in nonlinear and linear measures of a surface electromyography signal during a brief (5 second) and sustained (2minute) isometric maximal voluntary contraction, combined with superimposed electrical stimulation involving the ankle plantar flexors over five identical trials. In this study, we repeated the testing protocol used in our previous study of 10 women (age 20.9, SD=0...
November 7, 2017: Homo: Internationale Zeitschrift Für die Vergleichende Forschung Am Menschen
https://www.readbyqxmd.com/read/29174793/footwear-interventions-for-foot-pain-function-impairment-and-disability-for-people-with-foot-and-ankle-arthritis-a-literature-review
#18
REVIEW
Mike Frecklington, Nicola Dalbeth, Peter McNair, Peter Gow, Anita Williams, Matthew Carroll, Keith Rome
OBJECTIVE: To conduct a literature review on the effectiveness of footwear on foot pain, function, impairment and disability for people with foot and ankle arthritis. METHODS: A search of the electronic databases Scopus, Medline, CINAHL, SportDiscus and the Cochrane Library was undertaken in September 2017. The key inclusion criteria were studies reporting on findings of footwear interventions for people with arthritis with foot pain, function, impairment and/or disability...
November 3, 2017: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/29172015/tibial-impingement-secondary-to-distal-fibular-lag-screw-placement-a-case-report
#19
Lu Bai, Wen Zhou, Wen-Tao Zhang, Wei Huang, Hong-Lei Zhang
Impingement, tibial erosions, and "painful hardware" caused by a lag screw used for malleolar fracture stabilization are rare occurrences. We report a case of a symptomatic lag screw, used to fix a distal fibular fracture, that impinged on the distal tibial and causing symptoms. Awareness of the condition and early diagnosis based on thoughtful review of CT images are key to symptom alleviation. A review of the published data on the complication of "painful hardware" following ankle fracture fixation is also presented...
November 17, 2017: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/29171982/morphofunctional-muscle-changes-influence-on-foot-stability-in-multiple-sclerosis-during-gait-prediction-the-rehabilitation-potential1
#20
Marius Cristian Neamtu, Oana Maria Neamtu, Mihnea Ion Marin, Ligia Rusu
BACKGROUND: Multiple sclerosis patients may suffer muscle changes that involve gait disorders of the kinetic and kinematic parameters also their gait may be clinically symmetrical or asymmetrical. OBJECTIVE: The aim of this study is to analyze how the muscle change, could affect the biomechanical parameters of foot stability during the gait, by disturb the motor control. METHODS: The study group consisted of 13 patients diagnosed with multiple sclerosis, presenting clinically detectable abnormal gait...
November 24, 2017: Journal of Back and Musculoskeletal Rehabilitation
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