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https://www.readbyqxmd.com/read/28731802/neurovascular-structures-at-risk-with-curved-retrograde-ttc-fusion-nails
#1
Cesar de Cesar Netto, David Johannesmeyer, Brent Cone, Ibukunoluwa Araoye, Parke William Hudson, Bahman Sahranavard, Michael Johnson, Ashish Shah
BACKGROUND: The purpose of this study was to assess the risk of iatrogenic injury to plantar neurovascular structures of the foot during insertion of a curved retrograde tibiotalocalcaneal (TTC) fusion nail. MATERIAL AND METHODS: Ten below-knee thawed fresh-frozen cadaveric specimens underwent curved retrograde nailing of the ankle. The shortest distance between the nail and the main plantar neurovascular branches and injured structures were recorded during dissection...
July 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28726053/the-effect-of-different-ankle-and-knee-supports-on-balance-in-early-ambulation-of-post-stroke-hemiplegic-patients
#2
Burcu Talu, Zilan Bazancir
The purpose of this study was to compare the effects of different ankle and knee supports on balance in early ambulation of post-stroke hemiplegic patients. This is a randomized experimental study. The study sample included 20 hemiplegic patients who were able to stand with support and who had been diagnosed with a cerebrovascular accident within the last month. A knee immobilization brace (KIB) was first placed on each individual (first application), followed by placement of knee immobilizer brace and Foot Lifter Orthosis ® (FLO) (second application), and lastly, placement of KIB and rigid taping (RT) (third application)...
July 19, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28723758/total-knee-arthroplasty-conversion-after-a-failed-lateral-closing-wedge-high-tibial-osteotomy-with-knee-hyperextension-and-secondary-ankle-degeneration-a-case-report
#3
Chen Yao, Xingquan Xu, Sheng Zhou, Xiaoxiao Song, Dongquan Shi, Qing Jiang
RATIONALE: High tibial osteotomy (HTO) has been used widely for medial compartment knee osteoarthritis to correct the deformity and relieve symptoms, especially in young patients who are willing to maintain the high activity level. However, the change of bone morphology, ligament imbalance, limb malalignment, and other complications may influence the short-term outcomes of HTO. Some cases may even require conversion to TKA shortly after HTO because of the loss of correction or pain due to accelerated osteoarthritis...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28719477/gait-analysis-on-force-treadmill-in-children-comparison-with-results-from-ground-based-force-platforms
#4
Luigi Tesio, Chiara Malloggi, Nicola M Portinaro, Luigi Catino, Nicola Lovecchio, Viviana Rota
Gait analysis (GA) typically includes surface electromyographic (sEMG) recording from several lower limb muscles, optoelectronic measurement of joint rotations, and force recordings from ground-based platforms. From the latter two variables, the muscle power acting on the lower limb joints can be estimated. Recently, gait analysis on a split-belt force treadmill (GAFT) was validated for the study of adult walking. It showed high reliability of spatiotemporal, kinematic, dynamic, and sEMG parameters, matching those obtainable with GA on the basis of ground walking...
July 17, 2017: International Journal of Rehabilitation Research. Revue Internationale de Recherches de Réadaptation
https://www.readbyqxmd.com/read/28718217/a-3d-musculoskeletal-model-of-the-western-lowland-gorilla-hind-limb-moment-arms-and-torque-of-the-hip-knee-and-ankle
#5
Colleen Goh, Mary L Blanchard, Robin H Crompton, Michael M Gunther, Sophie Macaulay, Karl T Bates
Three-dimensional musculoskeletal models have become increasingly common for investigating muscle moment arms in studies of vertebrate locomotion. In this study we present the first musculoskeletal model of a western lowland gorilla hind limb. Moment arms of individual muscles around the hip, knee and ankle were compared with previously published data derived from the experimental tendon travel method. Considerable differences were found which we attribute to the different methodologies in this specific case...
July 17, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/28716691/acute-injuries-in-finnish-junior-floorball-league-players
#6
Kati Pasanen, Jussi Hietamo, Tommi Vasankari, Pekka Kannus, Ari Heinonen, Urho M Kujala, Ville M Mattila, Jari Parkkari
OBJECTIVES: To investigate the incidence and characteristics of acute time-loss injuries in Finnish junior floorball league players. DESIGN: Prospective cohort study with 3-year follow-up. METHODS: One hundred and eighty-six female and male players (mean age 16.6±1.4) took part in the follow-up study (2011-2014). The training hours and games were recorded on a team diary. Floorball related acute injuries were registered and verified by a research physician...
July 4, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28713536/neuromuscular-taping-application-in-counter-movement-jump-biomechanical-insight-in-a-group-of-healthy-basketball-players
#7
Giuseppe Marcolin, Alessandro Buriani, Andrea Giacomelli, David Blow, Davide Grigoletto, Marco Gesi
Kinesiologic elastic tape is widely used for both clinical and sport applications although its efficacy in enhancing agonistic performance is still controversial. Aim of the study was to verify in a group of healthy basketball players whether a neuromuscular taping application (NMT) on ankle and knee joints could affect the kinematic and the kinetic parameters of the jump, either by enhancing or inhibiting the functional performance. Fourteen healthy male basketball players without any ongoing pathologies at upper limbs, lower limbs and trunk volunteered in the study...
June 24, 2017: European Journal of Translational Myology
https://www.readbyqxmd.com/read/28713455/a-pilot-study-of-the-effect-of-outsole-hardness-on-lower-limb-kinematics-and-kinetics-during-soccer-related-movements
#8
Dong Sun, Qichang Mei, Julien S Baker, Xuewen Jia, Yaodong Gu
The purpose of this study was to investigate the effect of different outsole hardness of turf cleats shoes on the lower limb kinematics and kinetics of soccer players playing on artificial turf. The participants were required to complete tasks of straight running and 45° left sidestep cutting movements, respectively, at the speed of 4.5 ± 0.2 m/s on artificial turf. They were asked to randomly select turf cleats shoes with a soft outsole (SO), medium hardness outsole (MO) and hard outsole (HO). During the stance phase of straight running, peak pressure and force-time integral in medial forefoot (MFF) of players wearing cleats shoes with MO were significantly higher than those wearing cleats shoes with SO...
June 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28713039/efficacy-of-ankle-foot-orthoses-types-on-walking-in-children-with-cerebral-palsy-a-systematic-review
#9
REVIEW
Atefeh Aboutorabi, Mokhtar Arazpour, Monireh Ahmadi Bani, Hassan Saeedi, John S Head
BACKGROUND: Ankle foot orthoses (AFOs) are orthotic devices that can be used to normalize the walking pattern of children with cerebral palsy (CP). One of the aims of orthotic management is to produce a more normal gait pattern by positioning joints in the proper position to reduce pathological reflex or spasticity. OBJECTIVE: To conduct a systematic review of the literature and establish the effect of treatment with various types of AFOs on gait patterns of children with CP...
July 13, 2017: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/28706861/nutech-functional-score-a-novel-scoring-system-to-assess-spinal-cord-injury-patients
#10
Geeta Shroff, Jitendra Kumar Barthakur
AIM: To develop a new scoring system, nutech functional scores (NFS) for assessing the patients with spinal cord injury (SCI). METHODS: The conventional scale, American Spinal Injury Association's (ASIA) impairment scale is a measure which precisely describes the severity of the SCI. However, it has various limitations which lead to incomplete assessment of SCI patients. We have developed a 63 point scoring system, i.e., NFS for patients suffering with SCI. A list of symptoms either common or rare that were found to be associated with SCI was recorded for each patient...
June 26, 2017: World Journal of Methodology
https://www.readbyqxmd.com/read/28704747/two-cases-of-late-medial-instability-of-the-knee-due-to-hip-disease-after-total-knee-arthroplasty
#11
Masanori Tsubosaka, Tomoyuki Matsumoto, Koji Takayama, Naoki Nakano, Ryosuke Kuroda
INTRODUCTION: There are few specific reports of late medial instability after total knee arthroplasty (TKA). We described two cases of late medial instability of the knee due to hip disease with osteoarthritis or rheumatoid arthritis after TKA, which required revision TKA. PRESENTATION OF CASES: An 82-year-old woman experienced right femoral neck fracture due to a fall that required conservative treatment at age 77 years and underwent left TKA at age 80 years. A 68-year-old woman underwent left TKA at age 54 years, right TKA at age 64 years, and left THA at age 67 years...
June 29, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28704464/simulated-impacts-of-ankle-foot-orthoses-on-muscle-demand-and-recruitment-in-typically-developing-children-and-children-with-cerebral-palsy-and-crouch-gait
#12
Michael Rosenberg, Katherine M Steele
Passive ankle foot orthoses (AFOs) are often prescribed for children with cerebral palsy (CP) to assist locomotion, but predicting how specific device designs will impact energetic demand during gait remains challenging. Powered AFOs have been shown to reduce energy costs of walking in unimpaired adults more than passive AFOs, but have not been tested in children with CP. The goal of this study was to investigate the potential impact of powered and passive AFOs on muscle demand and recruitment in children with CP and crouch gait...
2017: PloS One
https://www.readbyqxmd.com/read/28704344/effects-of-altering-trunk-position-during-landings-on-patellar-tendon-force-and-pain
#13
Rodrigo Scattone Silva, Craig R Purdam, Angela M Fearon, Wayne A Spratford, Claire Kenneally-Dabrowski, Peter Preston, Fábio V Serrão, James E Gaida
PURPOSE: To verify the immediate effects of altering sagittal plane trunk position during jump-landings on lower limb biomechanics, patellar tendon force and pain of athletes with and without patellar tendinopathy. METHODS: Twenty-one elite male athletes were categorized into 3 groups, athletes with patellar tendinopathy (TG, n=7), asymptomatic athletes with patellar tendon abnormalities (AG, n=7) and asymptomatic athletes without tendon abnormalities (CG, n=7)...
July 12, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28702442/kinematics-and-neuromuscular-recruitment-during-vertical-treadmill-exercise
#14
Alastair R Jordan, Andrew Barnes, David Claxton, Alison Purvis, Mary Fysh
The vertical treadmill (VertiRun) is an unresearched, partial weight-bearing exercise mode for lower limb rehabilitation. The user undertakes a "running-like" action whilst body weight is supported by a bench and the limb is drawn downwards against overhanging resistance cables on a vertically hung nonmotorised treadmill. This study sought to describe the kinematics and neuromuscular recruitment during VertiRun exercise in the supine, 40°, and 70° postures. Twenty-one healthy male participants (age, 25±7 years; stature, 1...
June 2017: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/28701669/muscle-weakness-is-associated-with-an-increase-of-left-ventricular-mass-through-excessive-blood-pressure-elevation-during-exercise-in-patients-with-hypertension
#15
Yumi Kamada, Takashi Masuda, Shinya Tanaka, Ayako Akiyama, Takeshi Nakamura, Nobuaki Hamazaki, Michihito Okubo, Naoyuki Kobayashi, Junya Ako
Autonomic imbalance in hypertension induces excessive blood pressure (BP) elevation during exercise, thereby increasing left ventricular mass (LVM). Although muscle weakness enhances autonomic imbalance by stimulating muscle sympathetic activity during exercise, it is unclear whether muscle weakness is associated with an increase of LVM in patients with hypertension. This study aimed to investigate the relationships between muscle weakness, BP elevation during exercise, and LVM in these patients. Eighty-six hypertensive patients aged 69 ± 8 years with controlled resting BP (ie, < 140/90 mmHg) were recruited...
July 13, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28700719/stair-negotiation-made-easier-using-novel-interactive-energy-recycling-assistive-stairs
#16
Yun Seong Song, Sehoon Ha, Hsiang Hsu, Lena H Ting, C Karen Liu
Here we show that novel, energy-recycling stairs reduce the amount of work required for humans to both ascend and descend stairs. Our low-power, interactive, and modular steps can be placed on existing staircases, storing energy during stair descent and returning that energy to the user during stair ascent. Energy is recycled through event-triggered latching and unlatching of passive springs without the use of powered actuators. When ascending the energy-recycling stairs, naive users generated 17.4 ± 6.9% less positive work with their leading legs compared to conventional stairs, with the knee joint positive work reduced by 37...
2017: PloS One
https://www.readbyqxmd.com/read/28700630/simulating-ideal-assistive-devices-to-reduce-the-metabolic-cost-of-walking-with-heavy-loads
#17
Christopher L Dembia, Amy Silder, Thomas K Uchida, Jennifer L Hicks, Scott L Delp
Wearable robotic devices can restore and enhance mobility. There is growing interest in designing devices that reduce the metabolic cost of walking; however, designers lack guidelines for which joints to assist and when to provide the assistance. To help address this problem, we used musculoskeletal simulation to predict how hypothetical devices affect muscle activity and metabolic cost when walking with heavy loads. We explored 7 massless devices, each providing unrestricted torque at one degree of freedom in one direction (hip abduction, hip flexion, hip extension, knee flexion, knee extension, ankle plantarflexion, or ankle dorsiflexion)...
2017: PloS One
https://www.readbyqxmd.com/read/28697694/midterm-outcomes-from-a-pilot-study-of-percutaneous-deep-vein-arterialization-for-the-treatment-of-no-option-critical-limb-ischemia
#18
Steven Kum, Yih Kai Tan, Michiel A Schreve, Roberto Ferraresi, Ramon L Varcoe, Andrej Schmidt, Dierk Scheinert, Jihad A Mustapha, Darryl M Lim, Derek Ho, Tjun Y Tang, Vlad-Adrian Alexandrescu, Pramook Mutirangura
PURPOSE: To report the initial clinical experience with percutaneous deep vein arterialization (PDVA) to treat critical limb ischemia (CLI) via the creation of an arteriovenous fistula. METHODS: Seven patients (median age 85 years; 5 women) with CLI and no traditional endovascular or surgical revascularization options (no-option CLI) were recruited in a pilot study to determine the safety of PDVA. All patients were diabetic; 4 had Rutherford category 6 ischemia...
July 1, 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/28694684/comparison-of-joint-loading-in-badminton-lunging-between-professional-and-amateur-badminton-players
#19
Lin Fu, Feng Ren, Julien S Baker
The knee and ankle are the two most injured joints associated with the sport of badminton. This study evaluates biomechanical factors between professional and amateur badminton players using an injury mechanism model. The aim of this study was to investigate the kinematic motion and kinetic loading differences of the right knee and ankle while performing a maximal right lunge. Amateur players exhibited greater ankle range of motion (p < 0.05, r = 0.89) and inversion joint moment (p < 0.05, r = 0.54) in the frontal plane as well as greater internal joint rotation moment (p < 0...
2017: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/28693377/effect-of-floor-reaction-ankle-foot-orthosis-on-crouch-gait-in-patients-with-cerebral-palsy-what-can-be-expected
#20
Harald Böhm, Hösl Matthias, Frank Braatz, Leonhard Döderlein
BACKGROUND: Floor reaction ankle-foot orthoses are commonly prescribed to improve knee extension of children with cerebral palsy having crouch gait. Their effectiveness is debated. Therefore, the objective of this study is to optimize current prescription criteria for the improvement of crouch gait. STUDY DESIGN: Cross-sectional interventional study. METHODS: A total of 22 patients with bilateral spastic cerebral palsy, between 6 and 17 years, Gross Motor Function Classification System II-IV participated in this study...
July 1, 2017: Prosthetics and Orthotics International
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