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https://www.readbyqxmd.com/read/29144392/design-and-development-of-a-novel-upper-limb-cycling-prosthesis
#1
Akira Tiele, Shivam Soni-Sadar, Jack Rowbottom, Shilen Patel, Edward Mathewson, Samuel Pearson, David Hutchins, John Head, Stephen Hutchins
The rise in popularity of the Paralympics in recent years has created a need for effective, low-cost sports-prosthetic devices for upper-limb amputees. There are various opportunities for lower-limb amputees to participate in cycling; however, there are only few options for those with upper-limb amputations. If the individual previously participated in cycling, a cycling-specific prosthesis could allow these activities to be integrated into rehabilitation methods. This article describes the processes involved with designing, developing and manufacturing such a prosthesis...
November 16, 2017: Bioengineering
https://www.readbyqxmd.com/read/29132264/leg-amputation-side-determines-performance-in-curve-sprinting-a-case-study-on-a-paralympic-medalist
#2
Johannes Funken, Kai Heinrich, Steffen Willwacher, Ralf Müller, Jonas Böcker, Hiroaki Hobara, Gert-Peter Brüggemann, Wolfgang Potthast
The lower limb kinetics of curve sprinting in amputees are not well described in the literature, particularly with respect to the effect of the side of amputation. This is an issue due to the importance of the knowledge for prosthetic design and classification of athletes. Thus, the aim of this study was to investigate the influence of side of amputation on curve sprinting performance in athletes with a unilateral leg amputation. A three-dimensional motion analysis system (Vicon), four force plates (Kistler) and a modified mathematical human model (ALASKA) were used to compare clockwise and counter clockwise curve sprinting lower limb kinematics and kinetics of a Paralympic medalist with a left-sided knee exarticular amputation...
November 13, 2017: Sports Biomechanics
https://www.readbyqxmd.com/read/29126375/a-clinical-survey-about-commercial-games-in-lower-limb-prosthetic-rehabilitation
#3
Bita Imam, William C Miller, Heather C Finlayson, Janice J Eng, Tal Jarus
BACKGROUND: Despite the popularity of commercial games in lower limb prosthetic rehabilitation, data about their prevalence of use as well as therapists' perspectives about these games are still lacking. OBJECTIVES: To learn about the prevalence of use of commercial games in lower limb prosthetic rehabilitation and therapists' perspectives about these games. STUDY DESIGN: Cross-sectional. METHODS: An online survey was sent to physical and occupational therapists across prosthetic rehabilitation facilities in Canada...
November 1, 2017: Prosthetics and Orthotics International
https://www.readbyqxmd.com/read/29119860/cost-effectiveness-of-bone-anchored-prostheses-using-osseointegrated-fixation-myth-or-reality
#4
Laurent Alain Frossard, Gregory Merlo, Brendan Burkett, Tanya Quincey, Debra Berg
BACKGROUND: In principle, lower limb bone-anchored prostheses could alleviate expenditure associated with typical socket manufacturing and residuum treatments due to socket-suspended prostheses. OBJECTIVE: This study reports (a) the incremental costs and (b) heath gain as well as (c) cost-effectiveness of bone-anchored prostheses compared to socket-suspended prostheses. STUDY DESIGN: Retrospective individual case-controlled observations and systematic review...
November 1, 2017: Prosthetics and Orthotics International
https://www.readbyqxmd.com/read/29116866/functional-changes-through-the-usage-of-3d-printed-transitional-prostheses-in-children
#5
Jorge M Zuniga, Jean L Peck, Rakesh Srivastava, James E Pierce, Drew R Dudley, Nicholas A Than, Nicholas Stergiou
INTRODUCTION: There is limited knowledge on the use of 3 D-printed transitional prostheses, as they relate to changes in function and strength. Therefore, the purpose of this study was to identify functional and strength changes after usage of 3 D-printed transitional prostheses for multiple weeks for children with upper-limb differences. MATERIALS AND METHODS: Gross manual dexterity was assessed using the Box and Block Test and wrist strength was measured using a dynamometer...
November 8, 2017: Disability and Rehabilitation. Assistive Technology
https://www.readbyqxmd.com/read/29098745/prosthodontic-management-of-a-patient-with-moebius-syndrome-a-clinical-report
#6
Ahmed Mahrous, Ghadeer Thalji
Moebius/Mӧbius Syndrome (MS) is an extremely rare congenital disorder characterized by uni- or bilateral palsy of the abducens (VI) and the facial (VII) nerves, causing facial paralysis. Dysfunction of cranial nerves III through XII is common, most often the glossopharyngeal (IX) and hypoglossus (XII). Afflicted individuals seeking prosthodontic care, particularly removable prosthetics, present multiple challenges related to inherent facial and tongue muscle weakness and microstomia. Other extraoral anomalies may include congenital multiple arthrogryposis and malformations of the upper and lower limbs...
November 3, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/29075428/obtaining-natural-sit-to-stand-motion-with-a-biomimetic-controller-for-powered-knee-prostheses
#7
Molei Wu, Md Rejwanul Haque, Xiangrong Shen
Standing up from a seated position is a common activity in people's daily life. However, for transfemoral (i.e., above-knee) amputees fitted with traditional passive prostheses, the sit-to-stand (STS) transition is highly challenging, due to the inability of the prosthetic joints in generating torque and power output. In this paper, the authors present a new STS control approach for powered lower limb prostheses, which is able to regulate the power delivery of the prosthetic knee joint to obtain natural STS motion similar to that displayed by healthy subjects...
2017: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29069141/intra-arterial-fibrinolysis-for-the-management-of-acute-ischemia-on-a-below-knee-amputation-stump-case-report
#8
Breno Boueri Affonso, Joaquim Maurício da Motta Leal, Rafael Noronha Cavalcante, Priscila Mina Falsarella, Francisco Leonardo Galastri, Rodolfo Souza Cardoso, Felipe Nasser
Preservation of the knee joint has enormous advantages in terms of mobility and rehabilitation of an amputee. Any cause of breakdown requiring revision to an above-knee amputation is a major setback because it reduces the patient's rehabilitative potential. We report a case of intra-arterial thrombolysis use to save a below-knee amputation stump with acute ischemia. A 56-year-old man who sought the emergency department with 1-day history of acute pain on his right below-knee stump. The angiography confirmed popliteal artery occlusion...
October 23, 2017: Einstein
https://www.readbyqxmd.com/read/29062019/myoelectric-pattern-recognition-outperforms-direct-control-for-transhumeral-amputees-with-targeted-muscle-reinnervation-a-randomized-clinical-trial
#9
Levi J Hargrove, Laura A Miller, Kristi Turner, Todd A Kuiken
Recently commercialized powered prosthetic arm systems hold great potential in restoring function for people with upper-limb loss. However, effective use of such devices remains limited by conventional (direct) control methods, which rely on electromyographic signals produced from a limited set of muscles. Targeted Muscle Reinnervation (TMR) is a nerve transfer procedure that creates additional recording sites for myoelectric prosthesis control. The effects of TMR may be enhanced when paired with pattern recognition technology...
October 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29060946/target-of-physiological-gait-realization-of-speed-adaptive-control-for-a-prosthetic-knee-during-swing-flexion
#10
Wujing Cao, Hongliu Yu, Weiliang Zhao, Jin Li, Xiaodong Wei
BACKGROUND: Prosthetic knee is the most important component of lower limb prosthesis. Speed adaptive for prosthetic knee during swing flexion is the key method to realize physiological gait. OBJECTIVE: This study aims to discuss the target of physiological gait, propose a speed adaptive control method during swing flexion and research the damping adjustment law of intelligent hydraulic prosthetic knee. METHODS: According to the physiological gait trials of healthy people, the control target during swing flexion is defined...
October 13, 2017: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/29059893/emg-based-energy-expenditure-optimization-for-active-prosthetic-leg-tuning
#11
Roozbeh Atri, J Sebastian Marquez, Douglas Murphy, Ashraf Gorgey, DingYu Fei, John Fox, William Lovegreen, Ou Bai
In recent years, active prosthetic legs have been developed and deployed commercially that help amputees to initiate gait with less effort and more symmetry in the pattern. However, the process of initial set up and tuning is highly time and cost consuming. It requires prosthetic experts to observe the gait and the feedback from amputees to manually tune the parameters subjectively. In this study, an electromyography (EMG)-based energy expenditure optimization method was presented to automatically tune the prosthetic limb...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29054690/removable-rigid-dressings-for-postoperative-management-of-transtibial-amputations-a-review-of-published-evidence
#12
REVIEW
James P Reichmann, Phillip M Stevens, John Rheinstein, Christopher D Kreulen
Forty years of clinical experience and peer reviewed research studies support the use of non-weight bearing removable rigid dressings (RRD) as an effective means of post-operative management of transtibial amputations. We reviewed the published medical evidence regarding the use of RRDs as a postoperative management strategy, culminating in an evidence-based practice recommendation. Published peer reviewed literature on the topic was searched and classified by level of evidence based on the research design utilizing the scale recommended by the PM&R Journal (level I through V)...
October 17, 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/29053875/current-state-of-the-surgical-treatment-of-terminal-neuromas
#13
Graham C Ives, Theodore A Kung, Bao Tram Nghiem, Daniel C Ursu, David L Brown, Paul S Cederna, Stephen W P Kemp
Painful terminal neuromas resulting from nerve injury following amputation are common. However, there is currently no universally accepted gold standard of treatment for this condition. A comprehensive literature review is presented on the treatment of terminal neuromas. Four categories of terminal neuroma surgical procedures are assessed: epineurial closure; nerve transposition with implantation; neurorrhaphy, and alternate target reinnervation. Significant patient and case studies are highlighted in each section, focusing on surgical technique and patient outcome metrics...
October 19, 2017: Neurosurgery
https://www.readbyqxmd.com/read/29028131/a-motion-analysis-protocol-for-kinematic-assessment-of-poly-articulated-prosthetic-hands-with-cosmetic-gloves
#14
Andrea Giovanni Cutti, Francesca Cordella, Giulia D'Amico, Rinaldo Sacchetti, Angelo Davalli, Eugenio Guglielmelli, Loredana Zollo
To provide upper-limb amputees with devices that best fit their needs and to test innovative solutions, it is necessary to quantitatively appraise a device performance with rigorous measurement methods. The aim of this work was to define an optimal motion analysis protocol, suitable for optoelectronic systems, to measure the kinematics of poly-articulated hands even when covered by a cosmetic glove. This is a fundamental aspect, because gloves can decrease device speed and range of motion and, ultimately, patients' acceptance of the artificial limb...
October 13, 2017: Artificial Organs
https://www.readbyqxmd.com/read/29026631/salmonella-typhimurium-gastroenteritis-leading-to-chronic-prosthetic-vascular-graft-infection
#15
Milo Cullinan, Michael Clarke, Tim Dallman, Steven Peart, Deborah Wilson, Daniel Weiand
Introduction. It is estimated up to 6 % of prosthetic vascular grafts become infected. Staphylococcus aureus is predominant in early infection and coagulase-negative staphylococci are predominant in late infections. Enterobacteriaceae cause 14-40 % of prosthetic vascular graft infections. This is, to our knowledge the first reported case of Salmonella gastroenteritis causing chronic prosthetic vascular graft infection (PVGI). Case presentation. A 57 years old lady presented with signs and symptoms of prosthetic vascular graft infection...
August 2017: JMM Case Reports
https://www.readbyqxmd.com/read/29024959/limb-laterality-recognition-score-a-reliable-clinical-measure-related-to-phantom-limb-pain
#16
Christopher Kevin Wong, Caitlin Kimberly Wong
Objective: To explore the usefulness of the limb laterality recognition score as a clinical measure of phantom limb pain, regarding test-retest reliability and association of limb laterality recognition scores with phantom limb pain measures. Design: Retrospective cohort. Setting: Community support group. Subjects: Eleven adults who averaged 4.8 years since lower limb amputation due to vascular pathologies (N = 9), trauma (N = 1), and cancer (N = 1)...
August 24, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28990467/mobility-analysis-of-amputees-maat-i-quality-of-life-and-satisfaction-are-strongly-related-to-mobility-for-patients-with-a-lower-limb-prosthesis
#17
Shane R Wurdeman, Phillip M Stevens, James H Campbell
BACKGROUND: While rehabilitation professionals are historically trained to place emphasis on the restoration of mobility following lower limb amputation, changes in healthcare dynamics are placing an increased emphasis on the limb loss patient's quality of life and general satisfaction. Thus, the relationship between these constructs and mobility in the patient with lower limb loss warrants further investigation. OBJECTIVES: To determine the relationship between mobility of the patient with lower limb loss and both (1) general (1) general satisfaction and (2) quality of life...
October 1, 2017: Prosthetics and Orthotics International
https://www.readbyqxmd.com/read/28983183/multi-position-training-improves-robustness-of-pattern-recognition-and-reduces-limb-position-effect-in-prosthetic-control
#18
Robert J Beaulieu, Matthew R Masters, Joseph Betthauser, Ryan J Smith, Rahul Kaliki, Nitish V Thakor, Alcimar B Soares
No abstract text is available yet for this article.
April 2017: Journal of Prosthetics and Orthotics: JPO
https://www.readbyqxmd.com/read/28981420/knee-motion-generation-method-for-transfemoral-prosthesis-based-on-kinematic-synergy-and-inertial-motion
#19
Hiroshi Sano, Takahiro Wada
Previous research has shown that the effective use of inertial motion (i.e., less or no torque input at the knee joint) plays an important role in achieving a smooth gait of transfemoral prostheses in the swing phase. In our previous research, a method for generating a timed knee trajectory close to able-bodied individuals, which leads to sufficient clearance between the foot and the floor and the knee extension, was proposed using the inertial motion. Limb motions are known to correlate with each other during walking...
October 5, 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/28958175/the-impact-of-lower-limb-prosthetic-limb-use-in-international-c4-track-para-cycling
#20
Bryce Dyer
An investigation was undertaken to ascertain any impact or significance of athletes within the C4 paracycling classification between those who use a lower-limb prostheses and those who do not. A statistical evaluation of event completion time was undertaken to assess C4 cyclists when competing at the World Championships and the Paralympic Games in the 1 km track time trial. The C4 athletes who utilize a prostheses consistently outperformed non-amputees in the C4 classification from 2011 to 2016 on a competition-to-competition basis...
September 29, 2017: Disability and Rehabilitation. Assistive Technology
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