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https://www.readbyqxmd.com/read/28324977/a-novel-method-to-assess-angle-sensor-performance-for-wearable-exoskeletal-joint-kinematics
#1
Nicholas B Bolus, Geza F Kogler, Omer T Inan
Full range of motion (ROM) at a joint is necessary for efficient and adaptive movement; as such, it is an essential clinical evaluation measure for assessing an individual's motor function, which can be affected by any number of musculoskeletal injuries and neuropathies. Measurement of joint ROM in the clinic has classically been accomplished statically through the use of a manual goniometer. More recent efforts in the fields of prosthetics and orthotics have demonstrated the potential utility of wearable systems (e...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28323803/patient-response-to-an-integrated-orthotic-and-rehabilitation-initiative-for-traumatic-injuries-the-prioriti-mtf-study
#2
Joseph R Hsu, Johnny G Owens, Jennifer DeSanto, John R Fergason, Kevin M Kuhn, Benjamin K Potter, Daniel J Stinner, Robert G Sheu, Sandra L Waggoner, Jason M Wilken, Yanjie Huang, Daniel O Scharfstein, Ellen J MacKenzie
Although limb salvage is now possible for many high-energy open fractures and crush injuries to the distal tibia, ankle, hindfoot, and midfoot, orthotic options are limited. The Intrepid Dynamic Exoskeletal Orthosis (IDEO) is a custom, energy-storing carbon fiber orthosis developed for trauma patients undergoing limb salvage. The IDEO differs from other orthoses in that it allows patients with ankle weakness to have more normal ankle biomechanics and increased ankle power. This article describes the design of a study to evaluate the effectiveness of the IDEO when delivered together with a high-intensity, sports medicine-based approach to rehabilitation...
April 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28301825/combined-versus-individual-effects-of-a-valgus-knee-brace-and-lateral-wedge-foot-orthotic-during-stair-use-in-patients-with-knee-osteoarthritis
#3
Rebecca Moyer, Trevor Birmingham, Colin Dombroski, Robert Walsh, J Robert Giffin
The aim of this study was to investigate the combined and individual biomechanical effects of a valgus knee brace and a lateral wedge foot orthotic during stair ascent and descent in patients with knee osteoarthritis (OA). Thirty-five patients with varus alignment and medial knee OA were prescribed a custom valgus knee brace and lateral wedge foot orthotic. Knee angles and moments in the frontal and sagittal planes were determined from 3D gait analysis completed under four randomized conditions: (1) control (no knee brace or foot orthotic), (2) knee brace, (3) foot orthotic, and (4) combined knee brace and foot orthotic...
March 1, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28288334/trunk-biomechanics-during-hemiplegic-gait-after-stroke-a-systematic-review
#4
REVIEW
Tamaya Van Criekinge, Wim Saeys, Ann Hallemans, Silke Velghe, Pieter-Jan Viskens, Luc Vereeck, Willem De Hertogh, Steven Truijen
Stroke commonly results in trunk impairments that are associated with decreased trunk coordination and limited trunk muscle strength. These impairments often result in biomechanical changes during walking. Additionally, the so-called pelvic step might be influenced by these impairments. Therefore, the aim of this review was twofold. First, to gain more insight into trunk biomechanics during walking in stroke patients compared to healthy individuals. Second, to investigate the influence of walking speed on trunk biomechanics...
March 4, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28286982/rationale-for-prescription-and-effectiveness-of-upper-limb-orthotic-intervention-for-children-with-cerebral-palsy-a-systematic-review
#5
Simon Garbellini, Yvette Robert, Melinda Randall, Catherine Elliott, Christine Imms
PURPOSE: To explore (i) reasons for upper limb orthosis prescription for children with cerebral palsy (CP), (ii) the link between reason and effect according to intended outcome and outcome measure utilized and (iii) to classify the prescribed orthoses using standard terminology. METHOD: A prospectively registered (center for reviews and dissemination: 42015022067) systematic review searched for experimental and observational studies investigating rigid/thermoplastic upper limb orthotic intervention for children aged 0-18 with CP...
March 12, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28280915/-orthoses-and-assistive-devices-in-rheumatology-prevention-of-disability-support-of-residual-function
#6
T Fikentscher, H R Springorum, J Grifka, J Götz
Due to the frequent presence of comorbidities in patients suffering from rheumatism with increased perioperative risk factors, conservative treatment is often needed. Besides pharmacological treatment, physiotherapy and occupational therapy, a variety of orthoses are available depending on the individual indications. They can be used to stabilize or support joints, limit the range of motion, prevent unphysiological movements or provide relief for affected limbs. In order to choose the right kind of orthosis, the physician should know the underlying cause of disease...
March 9, 2017: Zeitschrift Für Rheumatologie
https://www.readbyqxmd.com/read/28279852/effectiveness-of-surgical-and-non-surgical-management-of-crouch-gait-in-cerebral-palsy-a-systematic-review
#7
REVIEW
Scott A Galey, Zachary F Lerner, Thomas C Bulea, Seymour Zimbler, Diane L Damiano
BACKGROUND: Cerebral palsy (CP) is a prevalent group of neuromotor disorders caused by early injury to brain regions or pathways that control movement. Patients with CP exhibit a range of functional motor disabilities and pathologic gait patterns. Crouch gait, characterized by increased knee flexion throughout stance, is a common gait pattern in CP that increases energy costs of walking and contributes to ambulatory decline. Our aim was to perform the first systematic literature review on the effectiveness of interventions utilized to ameliorate crouch gait in CP...
February 24, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28277072/free-flap-reconstruction-for-diabetic-foot-limb-salvage
#8
Tomoya Sato, Yuichiro Yana, Shigeru Ichioka
BACKGROUND: Although free flap is gaining popularity for the reconstruction of diabetic foot ulcers, it is unclear whether free flap reconstruction increases the chances of postoperative independent ambulation. The aim of this study is to evaluate the relationship between free flap success and postoperative ambulation. METHODS: This study reviewed 23 cases of free flap reconstruction for diabetic foot ulcers between January 2007 and March 2014. Free rectus abdominis, latissimus dorsi, and anterolateral thigh flaps were used in ten, eight, and five patients, respectively...
February 13, 2017: Journal of Plastic Surgery and Hand Surgery
https://www.readbyqxmd.com/read/28271943/the-effects-of-talus-control-foot-orthoses-in-children-with-flexible-flatfoot
#9
So Young Ahn, Soo Kyung Bok, Bong Ok Kim, In Sik Park
BACKGROUND: A talus control foot orthosis (TCFO) combines an inverted rigid foot orthosis (RFO) with a broad upright portion that rises well above the navicular to cover and protect the talonavicular joint. We sought to identify the therapeutic effect of TCFOs in children with flexible flatfoot. METHODS: Flexible flatfoot was diagnosed in 40 children when either of the feet had greater than 4° valgus of resting calcaneal stance position (RCSP) angle and one of the radiographic indicators was greater than 30° in anteroposterior talocalcaneal angles, 45° in lateral talocalcaneal angles, and 4° in lateral talometatarsal angles and less than 10° of calcaneal pitch in barefoot radiographs...
January 2017: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/28269595/design-and-validation-of-a-high-order-weighted-frequency-fourier-linear-combiner-based-kalman-filter-for-parkinsonian-tremor-estimation
#10
Y Zhou, M E Jenkins, M D Naish, A L Trejos
The design of a tremor estimator is an important part of designing mechanical tremor suppression orthoses. A number of tremor estimators have been developed and applied with the assumption that tremor is a mono-frequency signal. However, recent experimental studies have shown that Parkinsonian tremor consists of multiple frequencies, and that the second and third harmonics make a large contribution to the tremor. Thus, the current estimators may have limited performance on estimation of the tremor harmonics...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28268770/evaluation-of-a-variable-resistance-orthotic-knee-joint
#11
Andrew Herbert-Copley, Edward D Lemaire, Natalie Baddour
Knee-ankle-foot orthoses (KAFOs) are full leg braces for individuals with knee extensor weakness, designed to support the person during weight bearing activities by preventing knee flexion. KAFOs typically result in an unnatural gait pattern and are primarily used for level ground walking. A novel variable resistance orthotic knee joint, the Ottawalk-Variable Speed (OWVS), was designed to address these limitations. This paper presents a pilot test to evaluate the OWVS functional performance during walking and stair descent...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28258972/design-of-a-mechanism-for-converting-the-energy-of-knee-motions-by-using-electroactive-polymers
#12
Pascal Armbruster, Yannick Oster, Marcel Vogt, Christian Pylatiuk
Harvesting energy from human body motions has become a promising option to prolong battery life for powering medical devices for autonomy. Up to now, different generating principles including dielectric electroactive polymers (DEAPs) have been suggested for energy conversion. However, there is a lack of mechanisms that are specifically designed to convert energy with DEAPs. In a proof of concept study, a mechanical system was designed for stretching DEAPs in those phases of the gait cycle, in which the muscles mainly perform negative work...
March 4, 2017: Biomedizinische Technik. Biomedical Engineering
https://www.readbyqxmd.com/read/28257426/effects-of-different-medial-arch-support-heights-on-rearfoot-kinematics
#13
Gunnar Wahmkow, Michael Cassel, Frank Mayer, Heiner Baur
BACKGROUND: Foot orthoses are usually assumed to be effective by optimizing mechanically dynamic rearfoot configuration. However, the effect from a foot orthosis on kinematics that has been demonstrated scientifically has only been marginal. The aim of this study was to examine the effect of different heights in medial arch-supported foot orthoses on rear foot motion during gait. METHODS: Nineteen asymptomatic runners (36±11years, 180±5cm, 79±10kg; 41±22km/week) participated in the study...
2017: PloS One
https://www.readbyqxmd.com/read/28256245/effects-of-medially-posted-insoles-on-foot-and-lower-limb-mechanics-across-walking-and-running-in-overpronating-men
#14
Jukka Kosonen, Juha-Pekka Kulmala, Erich Müller, Janne Avela
Anti-pronation orthoses, like medially posted insoles (MPI), have traditionally been used to treat various of lower limb problems. Yet, we know surprisingly little about their effects on overall foot motion and lower limb mechanics across walking and running, which represent highly different loading conditions. To address this issue, multi-segment foot and lower limb mechanics was examined among 11 overpronating men with normal (NORM) and MPI insoles during walking (self-selected speed 1.70±0.19m/s vs 1.72±0...
February 6, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28246134/precision-orthotics-optimising-ankle-foot-orthoses-to-improve-gait-in-patients-with-neuromuscular-diseases-protocol-of-the-proof-afo-study-a-prospective-intervention-study
#15
Niels F J Waterval, Frans Nollet, Jaap Harlaar, Merel-Anne Brehm
INTRODUCTION: In patients with neuromuscular disorders and subsequent calf muscle weakness, metabolic walking energy cost (EC) is nearly always increased, which may restrict walking activity in daily life. To reduce walking EC, a spring-like ankle-foot-orthosis (AFO) can be prescribed. However, the reduction in EC that can be obtained from these AFOs is stiffness dependent, and it is unknown which AFO stiffness would optimally support calf muscle weakness. The PROOF-AFO study aims to determine the effectiveness of stiffness-optimised AFOs on reducing walking EC, and improving gait biomechanics and walking speed in patients with calf muscle weakness, compared to standard, non-optimised AFOs...
February 28, 2017: BMJ Open
https://www.readbyqxmd.com/read/28237072/effect-of-immobilization-of-metacarpophalangeal-joint-in-thumb-carpometacarpal-osteoarthritis-on-pain-and-function-a-quasi-experimental-trial
#16
Raquel Cantero-Téllez, Jorge Hugo Villafañe, Kristin Valdes, Pedro Berjano
STUDY DESIGN: A quasi-experimental trial. INTRODUCTION: Orthoses are effective to decrease pain and improve function in patients with carpometacarpal osteoarthritis (CMC OA). However, current research does not support one design of an orthosis as more effective and/or more favorable than another. PURPOSE OF THE STUDY: The aim of this study was to compare the effectiveness of 2 different static orthosis on pain and functional abilities on CMC OA...
February 22, 2017: Journal of Hand Therapy: Official Journal of the American Society of Hand Therapists
https://www.readbyqxmd.com/read/28236563/a-clinical-trial-of-tension-and-compression-orthoses-for-dupuytren-contractures
#17
Annelien Brauns, Maarten Van Nuffel, Luc De Smet, Ilse Degreef
STUDY DESIGN: Randomized clinical trial on 2 patient groups with Dupuytren's disease. INTRODUCTION: Despite an unpredictable outcome, surgery remains an important treatment for Dupuytren's disease. Orthotic devices are a controversial noninvasive treatment method to influence the myofibroblasts in the nodules. PURPOSE OF THE STUDY: To detect how much improvement 2 types of orthotic device (tension and compression) as only treatment intervention can provide on a Dupuytren's contracture...
February 21, 2017: Journal of Hand Therapy: Official Journal of the American Society of Hand Therapists
https://www.readbyqxmd.com/read/28227851/design-and-validation-of-a-high-order-weighted-frequency-fourier-linear-combiner-based-kalman-filter-for-parkinsonian-tremor-estimation
#18
Y Zhou, M E Jenkins, M D Naish, A L Trejos, Y Zhou, M E Jenkins, M D Naish, A L Trejos, M E Jenkins, M D Naish, Y Zhou, A L Trejos
The design of a tremor estimator is an important part of designing mechanical tremor suppression orthoses. A number of tremor estimators have been developed and applied with the assumption that tremor is a mono-frequency signal. However, recent experimental studies have shown that Parkinsonian tremor consists of multiple frequencies, and that the second and third harmonics make a large contribution to the tremor. Thus, the current estimators may have limited performance on estimation of the tremor harmonics...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227176/a-novel-method-to-assess-angle-sensor-performance-for-wearable-exoskeletal-joint-kinematics
#19
Nicholas B Bolus, Geza F Kogler, Omer T Inan, Nicholas B Bolus, Geza F Kogler, Omer T Inan, Geza F Kogler, Omer T Inan, Nicholas B Bolus
Full range of motion (ROM) at a joint is necessary for efficient and adaptive movement; as such, it is an essential clinical evaluation measure for assessing an individual's motor function, which can be affected by any number of musculoskeletal injuries and neuropathies. Measurement of joint ROM in the clinic has classically been accomplished statically through the use of a manual goniometer. More recent efforts in the fields of prosthetics and orthotics have demonstrated the potential utility of wearable systems (e...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226959/evaluation-of-a-variable-resistance-orthotic-knee-joint
#20
Andrew Herbert-Copley, Edward D Lemaire, Natalie Baddour, Andrew Herbert-Copley, Edward D Lemaire, Natalie Baddour, Andrew Herbert-Copley, Natalie Baddour, Edward D Lemaire
Knee-ankle-foot orthoses (KAFOs) are full leg braces for individuals with knee extensor weakness, designed to support the person during weight bearing activities by preventing knee flexion. KAFOs typically result in an unnatural gait pattern and are primarily used for level ground walking. A novel variable resistance orthotic knee joint, the Ottawalk-Variable Speed (OWVS), was designed to address these limitations. This paper presents a pilot test to evaluate the OWVS functional performance during walking and stair descent...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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