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https://www.readbyqxmd.com/read/29908391/gait-termination-on-a-declined-surface-in-trans-femoral-amputees-impact-of-using-microprocessor-controlled-limb-system
#1
Zahraa M Abdulhasan, Andy J Scally, John G Buckley
BACKGROUND: Walking down ramps is a demanding task for transfemoral-amputees and terminating gait on ramps is even more challenging because of the requirement to maintain a stable limb so that it can do the necessary negative mechanical work on the centre-of-mass in order to arrest (dissipate) forward/downward velocity. We determined how the use of a microprocessor-controlled limb system (simultaneous control over hydraulic resistances at ankle and knee) affected the negative mechanical work done by each limb when transfemoral-amputees terminated gait during ramp descent...
May 30, 2018: Clinical Biomechanics
https://www.readbyqxmd.com/read/29908296/sonographically-guided-plantaris-tendon-release-a-cadaveric-validation-study
#2
Jay Smith, Håkan Alfredson, Lorenzo Masci, Jacob L Sellon, Charonn D Woods
BACKGROUND: The plantaris tendon (PT) has been implicated in the pathogenesis of symptoms in a subset of patients with Achilles region pain syndromes and has been traditionally managed via open surgical resection. Although the PT can be visualized on ultrasound, a minimally invasive technique for sonographically guided PT release has not been formally described. OBJECTIVE: To validate a technique to perform sonographically guided PT release in an unembalmed cadaveric model...
June 13, 2018: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/29907912/temporary-epiphysiodesis-using-the-flextack%C3%A2-implant-tension-band-featuring-a-modified-explantation-technique
#3
REVIEW
S Koob, M Kehrer, M Hettchen, T Jansen, J Schmolders, R Placzek
OBJECTIVE: Presenting the implantation of the PediatrOS™ FlexTack™ (Merete, Berlin, Germany) for growth guidance and a modified explantation procedure to facilitate explantation and prevent bone and soft tissue damage. INDICATIONS: Implantation: Genua vara and valga, coxa vara, varus and valgus deviation of the ankle joint, the elbow joint and the wrist Modified Explantation: Removal of the implant after successful limb correction or dislocation of the implant...
June 15, 2018: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/29904448/extended-duration-dual-antiplatelet-therapy-after-percutaneous-coronary-intervention-in-patients-with-peripheral-arterial-disease-a-meta-analysis
#4
Hua Ling, Ebony Andrews, David Ombengi, Fang Li
Background: Patients with peripheral arterial disease (PAD) undergoing percutaneous coronary intervention (PCI) are at elevated risk of ischemic and bleeding events. However, the optimal duration of dual antiplatelet therapy (DAPT) after PCI in patients with PAD remains unclear. Methods: A systematic literature search was performed through June 2017 using PubMed, EMBASE and Cochrane databases with the following key terms: "dual antiplatelet therapy", "P2Y12 inhibitor", "myocardial infarction", "percutaneous coronary intervention", "stent", "peripheral arterial disease", and "ankle-brachial index"...
June 2018: Cardiology Research
https://www.readbyqxmd.com/read/29904047/evaluation-of-independent-versus-integrated-effects-of-reciprocal-electrical-stimulation-and-botulinum-toxin-a-on-dynamic-limits-of-postural-stability-and-ankle-kinematics-in-spastic-diplegia-a-single-blinded-randomized-trial
#5
Ragab K Elnaggar, Mohammed F Elbanna
BACKGROUND: Combination of medical and physical therapy protocols are increasingly recommended for cerebral palsied children. However, the clinicians frequently choose between independent or integrated treatment delivery based on little empirical evidence. AIM: To analyze the independent versus the integrated effects of Reciprocal Electrical Stimulation (RES) and Botulinum Toxin-A (BoNT-A) in terms of dynamic limits of postural stability and ankle kinematics in spastic diplegia...
June 14, 2018: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/29904043/effect-of-neuro-orthopaedic-surgery-for-spastic-equinovarus-foot-after-stroke-a-prospective-longitudinal-study-based-on-a-goal-centered-approach
#6
Thierry Deltombe, Maxime Gilliaux, François Peret, Mie Leeuwerck, Delphine Wautier, Philippe Hanson, Thierry Gustin
BACKGROUND: Neuro-orthopaedic surgery is recognized as an effective treatment to improve walking capacity in case of spastic equinovarus foot. However, the effect of surgery on the 3 domains of the International Classification of Functioning, Disability and Health (ICF) has never been studied. AIM: To assess the efficacy of the neuro-orthopaedic surgery for spastic equinovarus foot after stroke based on a goal-centered approach and on the 3 domains of the International Classification of Functioning, Disability and Health (ICF)...
June 14, 2018: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/29903837/modulation-of-joint-and-limb-mechanical-work-in-walk-to-run-transition-steps-in-humans
#7
Neville J Pires, Brendan S Lay, Jonas Rubenson
Surprisingly little information exists of the mechanics in the steps initializing the walk-to-run transition (WRT) in humans. Here we assess how mechanical work of the limbs (vertical and horizontal) and the individual joints (ankle, knee and hip) are modulated as humans transition from a preferred constant walking velocity (WLK) to a variety of running velocities (RUN; ranging from a sprint to a velocity slower than WLK). WRTs to fast RUNs occur nearly exclusively through positive horizontal limb work, satisfying the goal of forward acceleration...
June 14, 2018: Journal of Experimental Biology
https://www.readbyqxmd.com/read/29903578/functional-bracing-treatment-for-stable-type-b-ankle-fractures
#8
C van den Berg, T Haak, N L Weil, J M Hoogendoorn
BACKGROUND: In general, stable type B ankle fractures are treated conservatively with cast immobilization or a walking boot during six weeks. Some disadvantages of casting are joint stiffness, muscle wasting and lack of comfort. This study was designed to evaluate whether functional treatment with a removable brace is a safe and more comfortable alternative. MATERIAL AND METHODS: Randomized controlled trial. In the period March 2013 - May 2015, 44 patients visiting the emergency department due to a stable type B ankle fracture were included...
June 4, 2018: Injury
https://www.readbyqxmd.com/read/29903447/neurophysiology-of-gait
#9
Mariano Serrao, Alberto Ranavolo, Carlo Casali
Beyond the classic clinical description, recent studies have quantitatively evaluated gait and balance dysfunction in cerebellar ataxias by means of modern motion analysis systems. These systems have the aim of clearly and quantitatively describing the differences, with respect to healthy subjects, in kinematic, kinetic, and surface electromyography variables, establishing the basis for a rehabilitation strategy and assessing its efficacy. The main findings which characterize the gait pattern of cerebellar patients are: increased step width, reduced ankle joint range of motion with increased coactivation of the antagonist muscles, and increased stride-to-stride variability...
2018: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/29902832/-cost-and-revenue-relationship-in-orthopaedic-and-trauma-surgery-patients-in-relation-to-body-mass-index
#10
Helmut A Schmelz, Max Geraedts
BACKGROUND: Growing numbers of patients in orthopaedic and trauma surgery are obese. The risks involved are e.g. surgical complications, higher costs for longer hospital stays or special operating tables. It is a moot point whether revenues in the German DRG system cover the individual costs in relation to patients' body mass index (BMI) and in which area of hospital care potentially higher costs occur. MATERIAL AND METHODS: Data related to BMI, individual costs and revenues were extracted from the hospital information system for 13,833 patients of a large hospital who were operated in 2007 to 2010 on their upper or lower extremities...
June 14, 2018: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/29902807/a-biomechanical-comparison-of-single-leg-landing-and-unplanned-sidestepping
#11
Chamnan Chinnasee, Gillian Weir, Siriporn Sasimontonkul, Jacqueline Alderson, Cyril Donnelly
Unplanned sidestepping and single-leg landing have both been used to screen athletes for injury risk in sport. The aim of this study was to directly compare the lower limb mechanics of three single-leg landing tasks and an unplanned sidestepping task. Thirteen elite female team sport athletes completed a series of non-contact single-leg drop landings, single-leg countermovement jumps, single-leg jump landings and unplanned sidestepping in a randomized counterbalanced design. Three dimensional kinematics (250 Hz) and ground reaction force (2,000 Hz) data with a participant specific lower limb skeletal model were used to calculate and compare hip, knee and ankle joint kinematics, peak joint moments, instantaneous joint power and joint work during the weight acceptance phase of each sporting task (α=0...
June 14, 2018: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/29902713/full-gait-cycle-analysis-of-lower-limb-and-trunk-kinematics-and-muscle-activations-during-walking-in-participants-with-and-without-ankle-instability
#12
Lynsey Northeast, Charlotte N Gautrey, Lindsay Bottoms, Gerwyn Hughes, Andrew C S Mitchell, Andrew Greenhalgh
BACKGROUND: Chronic ankle instability (CAI) has previously been linked to altered lower limb kinematics and muscle activation characteristics during walking, though little research has been performed analysing the full time-series across the stance and swing phases of gait. RESEARCH QUESTION: The aim of this study was to compare trunk and lower limb kinematics and muscle activity between those with chronic ankle instability and healthy controls. METHODS: Kinematics and muscle activity were measured in 18 (14 males, 4 females) healthy controls (age 22...
June 7, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29902702/ankle-brachial-index-measured-by-oscillometry-is-predictive-for-cardiovascular-disease-and-premature-death-in-the-japanese-population-an-individual-participant-data-meta-analysis
#13
Toshiaki Ohkuma, Toshiharu Ninomiya, Hirofumi Tomiyama, Kazuomi Kario, Satoshi Hoshide, Yoshikuni Kita, Toyoshi Inoguchi, Yasutaka Maeda, Katsuhiko Kohara, Yasuharu Tabara, Motoyuki Nakamura, Takayoshi Ohkubo, Hirotaka Watada, Masanori Munakata, Mitsuru Ohishi, Norihisa Ito, Michinari Nakamura, Tetsuo Shoji, Charalambos Vlachopoulos, Victor Aboyans, Akira Yamashina
BACKGROUND AND AIMS: The ankle-brachial index (ABI) is a predictor of cardiovascular disease (CVD) and premature death. However, few studies on this marker are available in the general Asian populations. This study aimed to investigate the association between ABI measured with oscillometry and the risk of these outcomes. METHODS: We conducted an individual participant data meta-analysis in 10,679 community-dwelling Japanese individuals without a history of CVD. The primary outcome was a composite of CVD events and all-cause mortality...
May 31, 2018: Atherosclerosis
https://www.readbyqxmd.com/read/29901788/somatotopic-mapping-of-the-developing-sensorimotor-cortex-in-the-preterm-human-brain
#14
S Dall'Orso, J Steinweg, A G Allievi, A D Edwards, E Burdet, T Arichi
In the mature mammalian brain, the primary somatosensory and motor cortices are known to be spatially organized such that neural activity relating to specific body parts can be somatopically mapped onto an anatomical "homunculus". This organization creates an internal body representation which is fundamental for precise motor control, spatial awareness and social interaction. Although it is unknown when this organization develops in humans, animal studies suggest that it may emerge even before the time of normal birth...
July 1, 2018: Cerebral Cortex
https://www.readbyqxmd.com/read/29901592/the-heterogeneous-management-of-pediatric-ankle-traumas-a-retrospective-descriptive-study
#15
Philippe Voizard, James Moore, Stéphane Leduc, Marie-Lyne Nault
Frequent misdiagnosis of pediatric ankle traumas leads to inappropriate management, which may result in residual pain, instability, slower return to physical activity, and long-term degenerative changes. The purpose of this study was to evaluate the consistency of diagnosis, management, and the treatment of acute lateral pediatric ankle trauma in a tertiary care pediatric hospital. The hypothesis was that the initial diagnosis is often incorrect, and the treatment varies considerably amongst orthopedic surgeons...
June 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29900783/taenia-crassiceps-cysticercosis-in-a-nilgiri-langur-semnopithecus-johnii
#16
Martina Bleyer, Tina Risch, Christian Roos, Franz-Josef Kaup, Kerstin Mätz-Rensing
  A captive-born adult female Nilgiri langur ( Semnopithecus johnii) developed an edematous swelling of the left thigh and a firm mass around the right ankle joint. The animal also suffered from lethargy and anorexia and was euthanized because of poor general condition. Necropsy revealed that the skeletal muscle of the left thigh had been replaced by a multilocular cystic mass containing numerous sand-grain-sized whitish structures. Small cysts were also present in the lung and the myocardium. The mass of the right ankle joint was histologically consistent with a myxosarcoma...
June 2018: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/29899668/retrocalcaneal-bursitis-precedes-or-accompanies-achilles-tendon-enthesitis-in-the-early-phase-of-rheumatoid-arthritis
#17
Takeshi Suzuki, Yuka Hidaka, Yu Seri
The consecutive reports and stored images of ultrasound examinations for 100 symptomatic ankles of 74 patients with rheumatoid arthritis (RA) were reviewed for the presence or absence of retrocalcaneal bursitis (RCB) and Achilles tendon enthesitis (ATE). The ankles were classified into 4 categories based on the presence or absence of RCB or ATE. The number of RCB(-)/ATE(-), RCB(+)/ATE(-), RCB(+)/ATE(+), and RCB(-)/ATE(+) ankles was 62, 16, 12, and 10, respectively. When classifying patients into early RA and established RA, the percentage of RCB(-)/ATE(+) ankles with early RA was significantly lower than that with established RA ( P  = ...
2018: Clinical Medicine Insights. Arthritis and Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29899076/the-gibbon-s-achilles-tendon-revisited-consequences-for-the-evolution-of-the-great-apes
#18
Peter Aerts, Kristiaan D'Août, Susannah Thorpe, Gilles Berillon, Evie Vereecke
The well-developed Achilles tendon in humans is generally interpreted as an adaptation for mechanical energy storage and reuse during cyclic locomotion. All other extant great apes have a short tendon and long-fibred triceps surae, which is thought to be beneficial for locomotion in a complex arboreal habitat as this morphology enables a large range of motion. Surprisingly, highly arboreal gibbons show a more human-like triceps surae with a long Achilles tendon. Evidence for a spring-like function similar to humans is not conclusive...
June 13, 2018: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/29898587/how-effective-is-physical-therapy-for-gait-muscle-activity-in-hemiparetic-patients-who-receive-botulinum-toxin-injections
#19
Kazuki Fujita, Hiroichi Miaki, Hideaki Hori, Yasutaka Kobayashi, Takao Nakagawa
BACKGROUND: Administration of botulinum neurotoxin A (BoNT-A) to the ankle plantar flexors in patients with hemiplegia reduces the strength of knee extension, which may decrease their walking ability. Studies have reported improvements in walking ability with physical therapy following BoNT-A administration. However, no previous studies have evaluated from an exercise physiology perspective the efficacy of physical therapy after BoNT-A administration for adult patients with hemiplegia...
June 11, 2018: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/29898585/outcome-measures-in-the-clinical-evaluation-of-ambulatory-charcot-marie-tooth-1a-subjects
#20
Laura Mori, Valeria Prada, Alessio Signori, Davide Pareyson, Giuseppe Piscosquito, Luca Padua, Costanza Pazzaglia, Gian M Fabrizi, Alessandro Picelli, Angelo Schenone
BACKGROUND: The outcome measures (OMs) in clinical trials for Charcot Marie Tooth disease (CMT) still represent an issue. A recent study highlighted that three additional clinical OMs, the 10 meters walk test (10MWT), 9 hole-peg test, and foot dorsal flexion dynamometry, further improve discrimination between severely and mildly affected patients. Another study recently assess the validity and reliability of the 6 Minutes Walking test (6MWT). AIM: To identify the most useful scales in the clinical evaluation of CMT1A patients...
June 11, 2018: European Journal of Physical and Rehabilitation Medicine
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