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Prosthetic limb

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https://www.readbyqxmd.com/read/28214485/outcome-of-peripheral-venous-reconstructions-during-tumor-resection
#1
Philip Y Sun, Mark D Fleming, Kendall Stauffer, Manju Kalra, Gustavo Oderich, Thomas Bower, Peter Gloviczki, Randall R DeMartino
OBJECTIVE: Peripheral venous reconstruction surgery may be necessary for appropriate oncologic resection; however, the operative approach and surgical outcomes are not well described. We report our experience with these complex reconstructions to identify best practice. METHODS: We retrospectively reviewed all adult patients who underwent peripheral vein reconstruction for tumor resection at Mayo Clinic, Rochester (2000-2015). Patients were classified into three subgroups by the location: iliac (IL), lower extremity (LE), and upper extremity (UE)...
March 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28211795/a-murine-model-of-a-novel-surgical-architecture-for-proprioceptive-muscle-feedback-and-its-potential-application-to-control-of-advanced-limb-prostheses
#2
Tyler R Clites, Matthew Carty, Shriya Srinivasan, Anthony Zorzos, Hugh Herr
<i>Objective:</i> Proprioceptive mechanisms play a critical role in both reflexive and volitional lower extremity control. Significant strides have been made in the development of bionic limbs that are capable of bi-directional communication with the peripheral nervous system, but none of these systems have been capable of providing physiologically-relevant muscle-based proprioceptive feedback through natural neural pathways. In this study, we present the Agonist-antagonist Myoplastic Interface (AMI), a surgical approach with the capacity to provide graded kinesthetic feedback from a prosthesis through mechanical activation of native mechanoreceptors within residual agonist-antagonist muscle pairs...
February 17, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28209508/systematic-review-of-measures-of-impairment-and-activity-limitation-for-person-with-upper-limb-trauma-and-amputation
#3
REVIEW
Linda Resnik, Matt Borgia, Ben Silver, Jill Cancio
OBJECTIVE: Study purposes were to 1) identify outcome measures used in studies of persons with traumatic upper limb injury and/or amputation and 2) evaluate focus, content and psychometric properties of each measure. DATA SOURCES: Searches of PubMed and CINAHL for terms including upper extremity, function, activities of daily living, outcome assessment, amputation and traumatic injuries. STUDY SELECTION: Included articles had a sample of ≥10 adults with limb trauma or amputation, and were in English...
February 13, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28203220/proof-of-concept-of-an-online-emg-based-decoding-of-hand-postures-and-individual-digit-forces-for-prosthetic-hand-control
#4
Alycia Gailey, Panagiotis Artemiadis, Marco Santello
INTRODUCTION: Options currently available to individuals with upper limb loss range from prosthetic hands that can perform many movements, but require more cognitive effort to control, to simpler terminal devices with limited functional abilities. We attempted to address this issue by designing a myoelectric control system to modulate prosthetic hand posture and digit force distribution. METHODS: We recorded surface electromyographic (EMG) signals from five forearm muscles in eight able-bodied subjects while they modulated hand posture and the flexion force distribution of individual fingers...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28198595/free-microvascular-rotationplasty-with-nerve-repair-for-rhabdomyosarcoma-in-a-18-month-old-patient
#5
Alberto Pérez-García, Marta Salom, María Eloísa Villaverde-Doménech, Francisco Baixauli, Eduardo Simón-Sanz
Rotationplasty is a limb-sparing surgical option in lower limb malignancies. Sciatic or tibial nerve encasement has been considered an absolute contraindication to this procedure. We report a case of an 18-month-old girl with a rhabdomyosarcoma that affected the leg and popliteal fossa, with neurovascular involvement. Knee and proximal leg intercalary resection was performed followed by reconstruction with free microvascular rotationplasty and neurorraphy from tibial division of sciatic nerve to sural and tibial nerves, and from saphenous nerve to superficial peroneal nerve...
February 15, 2017: Microsurgery
https://www.readbyqxmd.com/read/28195886/pedicled-sensate-composite-calcaneal-flap-in-children-with-congenital-tibial-pseudoarthrosis
#6
Mauricio L D Mongon, Fernando C Ribera, Antonio M A de Souza, Aurelio L Sposito, William D Belangero, Bruno Livani
BACKGROUND: The preservation and functionality of a limb affected by a malformation (such as congenital pseudoarthrosis of the tibia) or a severely mangled lower limb in children, despite modern reconstructive techniques, remains challenging, often eventually requiring amputation to achieve a better outcome. The classical Syme and Boyd procedures are functionally better than transtibial (TT) amputation, but are not feasible for congenital tibial pseudoarthrosis. TT amputation delivers an excellent, effective, and functional stump that usually leads, after prosthetization, to a functional gait...
February 10, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28194713/use-of-compressive-osseointegration-endoprostheses-for-massive-bone-loss-from-tumor-and-failed-arthroplasty-a-viable-option-in-the-upper-extremity
#7
Krista A Goulding, Adam Schwartz, Steven J Hattrup, R Lor Randall, Donald Lee, Damian M Rispoli, Daniel M Lerman, Christopher Beauchamp
BACKGROUND: Endoprostheses using principles of compressive osseointegration have shown good survivorship in several studies involving the lower extremity; however, no series to our knowledge have documented the use of this technology in the management of massive bone loss in the upper limb. QUESTIONS/PURPOSES: (1) What proportion of upper extremity implants using compressive osseointegration fixation principles achieved durable short-term fixation, and what were the modes of failure? (2) What surgical complications resulted from reconstruction using this technique? METHODS: A multiinstitutional retrospective review identified nine patients (five women; four men) who underwent 13 endoprosthetic replacements between 2003 and 2014 using compressive osseointegration (Compliant(®) Pre-stress Device [CPS]; Biomet Inc, Warsaw, IN, USA) in the upper extremity, including two proximal humeri, two humeral diaphyses, seven distal humeri, and two proximal ulna...
February 13, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28194710/exchangeable-femoral-neck-dual-modular-tha-prostheses-have-poorer-survivorship-than-other-designs-a-nationwide-cohort-of-324-108-patients
#8
Sandrine Colas, Assia Allalou, Antoine Poichotte, Philippe Piriou, Rosemary Dray-Spira, Mahmoud Zureik
BACKGROUND: Exchangeable neck stems, defined as those with a dual taper (that is, a modular junction between the femoral head and the femoral neck and an additional junction between the neck and the stem body), were introduced in THA to improve restoration of joint biomechanics (restoring anteversion, offset, and limb length) and reduce the risk of dislocation. However exchangeable necks have been reported to result in adverse effects such as stem fractures and acute local tissue reaction...
February 13, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28190380/passive-prosthetic-hands-and-tools-a-literature-review
#9
Bartjan Maat, Gerwin Smit, Dick Plettenburg, Paul Breedveld
BACKGROUND: The group of passive prostheses consists of prosthetic hands and prosthetic tools. These can either be static or adjustable. Limited research and development on passive prostheses has been performed although many people use these prosthesis types. Although some publications describe passive prostheses, no recent review of the peer-reviewed literature on passive prostheses is available. OBJECTIVE: Review the peer-reviewed literature on passive prostheses for replacement of the hand...
February 1, 2017: Prosthetics and Orthotics International
https://www.readbyqxmd.com/read/28190376/prosthesis-donning-and-doffing-questionnaire-development-and-validation
#10
Noor Azuan Abu Osman, Arezoo Eshraghi, Hossein Gholizadeh, Wan Abu Bakar Wan Abas, Knut Lechler
OBJECTIVES: To develop a questionnaire that specifically evaluates the ability of trans-tibial amputees to don and doff a prosthesis and to investigate the psychometric properties of the newly developed questionnaire. BACKGROUND: Prosthesis should be donned and doffed few times during the day and night; thus, it is important to measure ease of donning and doffing. STUDY DESIGN: A cross-sectional study. METHODS: The questionnaire was designed and evaluated by a group of experts...
February 1, 2017: Prosthetics and Orthotics International
https://www.readbyqxmd.com/read/28164748/development-of-a-residuum-socket-interface-simulator-for-lower-limb-prosthetics
#11
Michael Paul McGrath, Jianliang Gao, Jinghua Tang, Piotr Laszczak, Liudi Jiang, Dan Bader, David Moser, Saeed Zahedi
Mechanical coupling at the interface between lower limb residua and prosthetic sockets plays an important role in assessing socket fitting and tissue health. However, most research lab-based lower limb prosthetic simulators to-date have implemented a rigid socket coupling. This study describes the fabrication and implementation of a lower limb residuum/socket interface simulator, designed to reproduce the forces and moments present during the key loading phases of amputee walking. An artificial residuum made with model bones encased in silicone was used, mimicking the compliant mechanical loading of a real residuum/socket interface...
February 1, 2017: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/28163172/endovascular-management-of-para-prosthetic-aortocaval-fistula-case-report-and-systematic-review-of-the-literature
#12
Claudio Bianchini Massoni, Giulia Rossi, Tiziano Tecchio, Paolo Perini, Antonio Freyrie
The aim of this article is to report a case of asymptomatic para-anastomotic aortocaval fistula (ACF) treated by endovascular aortic repair, and to review data of the literature on arteriovenous fistulae (AVF) secondary to abdominal aortic surgery. A 78-year-old male complained of worsening pain in the right lower limb since 2 months. He presented a history of right femoro-popliteal bypass for peripheral arterial occlusive disease and elective surgical treatment for a non-ruptured infrarenal aortic aneurysm (Dacron tube graft)...
February 2, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28152642/3d-printed-upper-limb-prostheses-a-review
#13
Jelle Ten Kate, Gerwin Smit, Paul Breedveld
GOAL: This paper aims to provide an overview with quantitative information of existing 3D-printed upper limb prostheses. We will identify the benefits and drawbacks of 3D-printed devices to enable improvement of current devices based on the demands of prostheses users. METHODS: A review was performed using Scopus, Web of Science and websites related to 3D-printing. Quantitative information on the mechanical and kinematic specifications and 3D-printing technology used was extracted from the papers and websites...
February 2, 2017: Disability and Rehabilitation. Assistive Technology
https://www.readbyqxmd.com/read/28147898/factors-influencing-quality-of-life-following-lower-limb-amputation-for-peripheral-arterial-occlusive-disease-a-systematic-review-of-the-literature
#14
Fiona Davie-Smith, Elaine Coulter, Brian Kennon, Sally Wyke, Lorna Paul
BACKGROUND: The majority of lower limb amputations are undertaken in people with peripheral arterial occlusive disease, and approximately 50% have diabetes. Quality of life is an important outcome in lower limb amputations; little is known about what influences it, and therefore how to improve it. OBJECTIVES: The aim of this systematic review was to identify the factors that influence quality of life after lower limb amputation for peripheral arterial occlusive disease...
February 1, 2017: Prosthetics and Orthotics International
https://www.readbyqxmd.com/read/28143603/classification-of-upper-limb-center-out-reaching-tasks-by-means-of-eeg-based-continuous-decoding-techniques
#15
Andrés Úbeda, José M Azorín, Ricardo Chavarriaga, José Del R Millán
BACKGROUND: One of the current challenges in brain-machine interfacing is to characterize and decode upper limb kinematics from brain signals, e.g. to control a prosthetic device. Recent research work states that it is possible to do so based on low frequency EEG components. However, the validity of these results is still a matter of discussion. In this paper, we assess the feasibility of decoding upper limb kinematics from EEG signals in center-out reaching tasks during passive and active movements...
February 1, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28143549/patients-satisfaction-with-lower-limb-prosthetic-and-orthotic-devices-and-service-delivery-in-sierra-leone-and-malawi
#16
Lina Magnusson, Gerd Ahlström
BACKGROUND: People with disabilities have the right to personal mobility and available and affordable assistive technology, according to the Convention of Rights of Persons with Disabilities. The aims were to investigate similarities and differences between Sierra Leone and Malawi concerning participants' mobility and satisfaction with their lower-limb prosthetic or orthotic device and related service delivery, and to identify variables associated with patients' satisfaction with assistive devices and associated services in the entire study group from these two low-income countries...
February 1, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28141525/e-o-a-brain-controlled-lower-limb-exoskeleton-for-rhesus-macaques
#17
Tristan Vouga, Katie Zhuang, Jeremy Olivier, Mikhail Lebedev, Miguel Nicolelis, Mohamed Bouri, Hannes Bleuler
Recent advances in the field of brain-machine interfaces (BMIs) have demonstrated enormous potential to shape the future of rehabilitation and prosthetic devices. Here, a lower-limb exoskeleton controlled by the intracortical activity of an awake, behaving rhesus macaque is presented as a proof-of-concept for a locomotor BMI. A detailed description of the mechanical device, including its innovative features and first experimental results, is provided. During operation, BMI-decoded position and velocity are directly mapped onto the bipedal exoskeleton's motions, which then move the monkey's legs as the monkey remains physically passive...
January 26, 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/28132589/northwestern-university-flexible-subischial-vacuum-socket-for-persons-with-transfemoral-amputation-part-2-description-and-preliminary-evaluation
#18
Stefania Fatone, Ryan Caldwell
BACKGROUND: Current transfemoral prosthetic sockets are problematic as they restrict function, lack comfort, and cause residual limb problems. Development of a subischial socket with lower proximal trim lines is an appealing way to address this problem and may contribute to improving quality of life of persons with transfemoral amputation. OBJECTIVES: The purpose of this study was to illustrate the use of a new subischial socket in two subjects. STUDY DESIGN: Case series...
January 1, 2017: Prosthetics and Orthotics International
https://www.readbyqxmd.com/read/28129515/association-between-cardiovascular-diseases-and-mobility-in-persons-with-lower-limb-amputation-a-systematic-review
#19
Sara Kaptein, Jan H B Geertzen, Pieter U Dijkstra
PURPOSE: Persons requiring a lower limb amputation often have cardiovascular diseases that reduce cardiac function, which may complicate recovery and rehabilitation after an amputation. This systematic review analysis the association between cardiovascular diseases and mobility in persons with a lower limb amputation. METHOD: Four databases were searched for studies published before August 2016 using database-specific keywords and synonyms for amputation, cardiovascular diseases and mobility...
January 27, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28127322/a-multidisciplinary-approach-to-a-seven-year-old-patient-with-incontinentia-pigmenti-a-case-report-and-five-year-follow-up
#20
Rezvan Rafatjou, Fariborz Vafaee, Hanif Allahbakhshi, Porousha Mahjoub
Incontinentia pigmenti is a rare inherited disorder involving abnormalities of the skin, hair, eyes, musculoskeletal system, central nervous system, and the teeth. Dental abnormalities are the most common manifestations of this disorder. The purpose of this case report was to present the clinical and radiological findings of a seven-year-old girl as well as the results of her five-year follow up. The patient showed faded linear pigmented macular lesions on the trunk and on upper and lower limbs. Dental examination was notable for conical and peg-shaped anterior teeth as well as delayed eruption of primary and permanent teeth...
August 2016: Journal of Dentistry of Tehran University of Medical Sciences
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