372 results match your criteria Upper Limb Prosthetics


Intraneural sensory feedback restores grip force control and motor coordination while using a prosthetic hand.

J Neural Eng 2019 Feb 8. Epub 2019 Feb 8.

BioRobotics Institute, Scuola Superiore Sant'Anna, Pontedera, ITALY.

Objective: Tactile afferents in the human hand provide fundamental information about hand-environment interactions, which is used by the brain to adapt the motor output to the physical properties of the object being manipulated. A hand amputation disrupts both afferent and efferent pathways from/to the hand, completely invalidating the individual's motor repertoire. Although motor functions may be partially recovered by using a myoelectric prosthesis, providing functionally effective sensory feedback to users of prosthetics is a largely unsolved challenge. Read More

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http://dx.doi.org/10.1088/1741-2552/ab059bDOI Listing
February 2019
1 Read

Remote fitting procedures for upper limb 3d printed prostheses.

Expert Rev Med Devices 2019 Jan 21:1-10. Epub 2019 Jan 21.

e Department of Engineering Science , University of Oxford , UK.

Background: The objective of the current investigation was twofold: i) describe a remote fitting procedure for upper limb 3D printed prostheses and ii) assess patient satisfaction and comfort with 3D printed prostheses fitted remotely.

Methods: A qualitative study using content and score analysis to describe patient satisfaction after remote prosthetic fitting. Research participants reported QUEST and OPUS scores that allow for perceived rating of general aspects and functionality of upper limb prostheses. Read More

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http://dx.doi.org/10.1080/17434440.2019.1572506DOI Listing
January 2019
1 Read

Effect of a posture correction-based intervention on musculoskeletal symptoms and fatigue among control room operators.

Appl Ergon 2019 Apr 30;76:12-19. Epub 2018 Nov 30.

Centro de Estudio del Trabajo y Factores Humanos, Escuela de Kinesiología, Facultad de Medicina, Universidad de Valparaíso, Valparaíso, Chile. Electronic address:

This study was conducted to examine the effect of a posture correction-based intervention (with a biofeedback device) on the occurrence of musculoskeletal symptoms (MSS) and fatigue among control room operators in a petrochemical plant in Iran. A total of 188 office workers (91 in the case group and 97 in the control group) participated at baseline as well as at 6- and 12-month follow-up. A questionnaire survey (including the Nordic Musculoskeletal Questionnaire and Multidimensional Fatigue Inventory) and direct observations of working postures by using the Rapid Upper Limb Assessment (RULA) method were used. Read More

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http://dx.doi.org/10.1016/j.apergo.2018.11.008DOI Listing
April 2019
1 Read

The Potential for a Speech Brain-Computer Interface Using Chronic Electrocorticography.

Neurotherapeutics 2019 Jan;16(1):144-165

Department of Neurology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.

A brain-computer interface (BCI) is a technology that uses neural features to restore or augment the capabilities of its user. A BCI for speech would enable communication in real time via neural correlates of attempted or imagined speech. Such a technology would potentially restore communication and improve quality of life for locked-in patients and other patients with severe communication disorders. Read More

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http://link.springer.com/10.1007/s13311-018-00692-2
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http://dx.doi.org/10.1007/s13311-018-00692-2DOI Listing
January 2019
6 Reads

Phantom-Mobility-Based Prosthesis Control in Transhumeral Amputees Without Surgical Reinnervation: A Preliminary Study.

Front Bioeng Biotechnol 2018 29;6:164. Epub 2018 Nov 29.

CNRS, ISM, Aix Marseille Université, Marseille, France.

Transhumeral amputees face substantial difficulties in efficiently controlling their prosthetic limb, leading to a high rate of rejection of these devices. Actual myoelectric control approaches make their use slow, sequential and unnatural, especially for these patients with a high level of amputation who need a prosthesis with numerous active degrees of freedom (powered elbow, wrist, and hand). While surgical muscle-reinnervation is becoming a generic solution for amputees to increase their control capabilities over a prosthesis, research is still being conducted on the possibility of using the surface myoelectric patterns specifically associated to voluntary Phantom Limb Mobilization (PLM), appearing naturally in most upper-limb amputees without requiring specific surgery. Read More

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http://dx.doi.org/10.3389/fbioe.2018.00164DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6282038PMC
November 2018
1 Read

Motor unit drive: a neural interface for real-time upper limb prosthetic control.

J Neural Eng 2019 Feb 24;16(1):016012. Epub 2018 Oct 24.

Delsys Inc. and Altec Inc., Natick, MA, United States of America. Department of Robotics Engineering, Human Inspired Robotics Laboratory, Worcester Polytechnic Institute, Worcester, MA, United States of America.

Objective: Modern prosthetic limbs have made strident gains in recent years, incorporating terminal electromechanical devices that are capable of mimicking the human hand. However, access to these advanced control capabilities has been prevented by fundamental limitations of amplitude-based myoelectric neural interfaces, which have remained virtually unchanged for over four decades. Consequently, nearly 23% of adults and 32% of children with major traumatic or congenital upper-limb loss abandon regular use of their myoelectric prosthesis. Read More

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http://dx.doi.org/10.1088/1741-2552/aaeb0fDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6349039PMC
February 2019
7 Reads

Upper Extremity Amputation and Prosthetics Care Across the Active Duty Military and Veteran Populations.

Phys Med Rehabil Clin N Am 2019 02 31;30(1):73-87. Epub 2018 Oct 31.

Center for the Intrepid, Department of Rehabilitation Medicine, Brooke Army Medical Center, 3551 Roger Brooke Drive, JBSA Fort Sam Houston, San Antonioa, TX 78234, USA. Electronic address:

The hand and arm are exceptionally dexterous, exquisitely sensitive, and proficient in performing tasks and functions. Given the invaluable functions of the upper extremity in daily life, replacement of a missing limb through prosthetic substitution is challenging. Prosthetic and rehabilitation needs of injured Service members from recent military conflicts have brought upper extremity amputation to the forefront, which has led to an increase in attention and resource allocation. Read More

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http://dx.doi.org/10.1016/j.pmr.2018.08.011DOI Listing
February 2019
1 Read

Performance of Combined Surface and Intramuscular EMG for Classification of Hand Movements.

Conf Proc IEEE Eng Med Biol Soc 2018 Jul;2018:5220-5223

The surface EMG (sEMG) has been used as control source for upper limb prosthetics since decades. Previous studies suggested that intramuscular EMG showed promising results for upper limb prosthetics. This study investigates the strength of combined surface and intramuscular EMG (cEMG) for improved myoelectric control. Read More

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http://dx.doi.org/10.1109/EMBC.2018.8513480DOI Listing
July 2018
2 Reads

Data Driven Spatial Filtering Can Enhance Abstract Myoelectric Control in Amputees.

Conf Proc IEEE Eng Med Biol Soc 2018 Jul;2018:3770-3773

Myoelectric control based on multi-sensor techniques can provide an enhanced signal to noise ratio but increases hardware cost and complexity. Sensor arrays are also attractive in a prosthetics context when exact muscle positions are unknown, such as may be the case after limb loss. We present preliminary data obtained while four amputee participants engaged in an abstract myoelectric decoding task. Read More

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http://dx.doi.org/10.1109/EMBC.2018.8513075DOI Listing
July 2018
4 Reads

On the Relationship Between Human Motor Control Performance and Kinematic Synergies in Upper Limb Prosthetics.

Conf Proc IEEE Eng Med Biol Soc 2018 Jul;2018:3194-3197

Current prosthesis command interfaces only allow for a single degree of freedom to be commanded at a time, making coordinated motion difficult to achieve. Thus it becomes crucial to develop methods that complement these interfaces to allow for intuitive coordinated arm motion. Kinematic synergies have been shown as an alternate method where the motion of the prosthetic device is coordinated with that of the residual limb. Read More

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http://dx.doi.org/10.1109/EMBC.2018.8512992DOI Listing
July 2018
2 Reads

Coordinated activities of trunk and upper extremity muscles during walker-assisted paraplegic gait: A synergy study.

Hum Mov Sci 2018 Dec 30;62:184-193. Epub 2018 Oct 30.

Mechanical Engineering Department, Sharif University of Technology, Tehran, Iran. Electronic address:

Individuals with spinal cord injury (SCI) at lower thoracic levels might walk independently with the aid of mechanical orthoses and walker by using their unimpaired trunk and upper extremity muscles (TUEM). The required motor skills and the associated subtasks of the paraplegic locomotion, however, have not been well understood yet. The purpose of this study was to investigate the coordination of the TUEM activities throughout the paraplegic gait cycle using synergy analysis. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S01679457183036
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http://dx.doi.org/10.1016/j.humov.2018.10.002DOI Listing
December 2018
9 Reads

Hand Amputations.

Eplasty 2018 28;18:ic21. Epub 2018 Sep 28.

Michigan State University College of Human Medicine, Grand Rapids.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6173827PMC
September 2018
13 Reads

Characteristics of phantom upper limb mobility encourage phantom-mobility-based prosthesis control.

Sci Rep 2018 Oct 18;8(1):15459. Epub 2018 Oct 18.

Aix Marseille Univ, CNRS, ISM, Marseille, France.

There is an increasing need to extend the control possibilities of upper limb amputees over their prosthetics, especially given the development of devices with numerous active joints. One way of feeding pattern recognition myoelectric control is to rely on the myoelectric activities of the residual limb associated with phantom limb movements (PLM). This study aimed to describe the types, characteristics, potential influencing factors and trainability of upper limb PLM. Read More

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http://www.nature.com/articles/s41598-018-33643-0
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http://dx.doi.org/10.1038/s41598-018-33643-0DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6193985PMC
October 2018
7 Reads

EMG and ENG-envelope pattern recognition for prosthetic hand control.

J Neurosci Methods 2019 Jan 11;311:38-46. Epub 2018 Oct 11.

Unit of Biomedical Robotics and Biomicrosystems, Università Campus Biomedico di Roma, Via Alvaro del Portillo 21, 00128 Rome, Italy.

Background: This paper proposes a new approach for neural control of hand prostheses, grounded on pattern recognition applied to the envelope of neural signals (eENG).

New Method: The ENG envelope was computed by taking into account the amplitude and the occurrence of the spike in the neural recording. A pattern recognition algorithm applied on muscular signals was defined as a reference and a comparative analysis with traditionally adopted Spike Sorting Algorithms (SSA) for neural signals has been carried out. Read More

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http://dx.doi.org/10.1016/j.jneumeth.2018.10.004DOI Listing
January 2019
3 Reads

Motorized Biomechatronic Upper and Lower Limb Prostheses-Clinically Relevant Outcomes.

PM R 2018 Sep;10(9S2):S207-S219

Össur hf, R&D, Medical Office, Reykjavik, Iceland(#).

People with major limb amputations are severely impaired when it comes to activity, body structure and function, as well as participation. Demographic statistics predict a dramatic increase of this population and additional challenges with their increasing age and higher levels of amputation. Prosthetic use has been shown to have a positive impact on mobility and depression, thereby affecting the quality of life. Read More

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http://dx.doi.org/10.1016/j.pmrj.2018.06.015DOI Listing
September 2018
11 Reads

Targeted muscle reinnervation and prosthetic rehabilitation after limb loss.

J Surg Oncol 2018 Oct 27;118(5):807-814. Epub 2018 Sep 27.

Division of Plastic and Reconstructive Surgery, Northwestern Memorial Hospital, Chicago, Illinois.

Over one million amputations occur annually world-wide. Often, amputation of the neoplastic limb is regarded as a surgical failure and the end of surgical care for the patient. Here, we highlight the advancements in extremity prostheses and surgical techniques that should change that mindset. Read More

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http://dx.doi.org/10.1002/jso.25256DOI Listing
October 2018
3 Reads

Control within a virtual environment is correlated to functional outcomes when using a physical prosthesis.

J Neuroeng Rehabil 2018 Sep 5;15(Suppl 1):60. Epub 2018 Sep 5.

Shirley Ryan AbilityLab, 355 E. Erie Street, Chicago, IL, 60611, USA.

Background: Advances such as targeted muscle reinnervation and pattern recognition control may provide improved control of upper limb myoelectric prostheses, but evaluating user function remains challenging. Virtual environments are cost-effective and immersive tools that are increasingly used to provide practice and evaluate prosthesis control, but the relationship between virtual and physical outcomes-i.e. Read More

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http://dx.doi.org/10.1186/s12984-018-0402-yDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6157245PMC
September 2018
3 Reads

Myocontrol is closed-loop control: incidental feedback is sufficient for scaling the prosthesis force in routine grasping.

J Neuroeng Rehabil 2018 Sep 3;15(1):81. Epub 2018 Sep 3.

Applied Rehabilitation Technology Lab (ART-Lab), Department of Trauma Surgery, Orthopedics and Plastic Surgery, University Medical Center Göttingen, Georg-August-University, 37075, Göttingen, Germany.

Background: Sensory feedback is critical for grasping in able-bodied subjects. Consequently, closing the loop in upper-limb prosthetics by providing artificial sensory feedback to the amputee is expected to improve the prosthesis utility. Nevertheless, even though amputees rate the prospect of sensory feedback high, its benefits in daily life are still very much debated. Read More

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http://dx.doi.org/10.1186/s12984-018-0422-7DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6122439PMC
September 2018
2 Reads

Strain distribution on a finger link: a static simulation study.

J Med Eng Technol 2018 May 20;42(4):317-328. Epub 2018 Aug 20.

a Department of Electronics and Computer Science , University of Southampton , Southampton , UK.

Functional prosthetics hands which have the ability to help amputees perform tasks in daily life have been developed over many years. These hands need a control system which is fed information from sensors mounted on a prosthetic hand and human-machine interface. A variety of sensors therefore been developed for the prosthetic hand to measure fingertip force, joint angle (position), object slip, texture and temperature. Read More

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http://dx.doi.org/10.1080/03091902.2018.1492040DOI Listing
May 2018
1 Read

Ten guidelines for the design of non-assembly mechanisms: The case of 3D-printed prosthetic hands.

Proc Inst Mech Eng H 2018 Sep 16;232(9):962-971. Epub 2018 Aug 16.

Department of Biomechanical Engineering, Faculty of Mechanical, Maritime and Materials Engineering, Delft University of Technology, Delft, The Netherlands.

In developing countries, prosthetic workshops are limited, difficult to reach, or even non-existent. Especially, fabrication of active, multi-articulated, and personalized hand prosthetic devices is often seen as a time-consuming and demanding process. An active prosthetic hand made through the fused deposition modelling technology and fully assembled right after the end of the 3D printing process will increase accessibility of prosthetic devices by reducing or bypassing the current manufacturing and post-processing steps. Read More

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http://journals.sagepub.com/doi/10.1177/0954411918794734
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http://dx.doi.org/10.1177/0954411918794734DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6151958PMC
September 2018
17 Reads

Movement-Based Control for Upper-Limb Prosthetics: Is the Regression Technique the Key to a Robust and Accurate Control?

Front Neurorobot 2018 26;12:41. Epub 2018 Jul 26.

Sorbonne Université, CNRS, INSERM, Institut des Systèmes Intelligents et de Robotique, International Society for Intelligence Research (ISIR), Paris, France.

Due to the limitations of myoelectric control (such as dependence on muscular fatigue and on electrodes shift, difficulty in decoding complex patterns or in dealing with simultaneous movements), there is a renewal of interest in the movement-based control approaches for prosthetics. The latter use residual limb movements rather than muscular activity as command inputs, in order to develop more natural and intuitive control techniques. Among those, several research works rely on the interjoint coordinations that naturally exist in human upper limb movements. Read More

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http://dx.doi.org/10.3389/fnbot.2018.00041DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6070640PMC
July 2018
5 Reads

Improving internal model strength and performance of prosthetic hands using augmented feedback.

J Neuroeng Rehabil 2018 Jul 31;15(1):70. Epub 2018 Jul 31.

Institute of Biomedical Engineering, University of New Brunswick, Fredericton, NB, E3B 5A3, Canada.

Background: The loss of an arm presents a substantial challenge for upper limb amputees when performing activities of daily living. Myoelectric prosthetic devices partially replace lost hand functions; however, lack of sensory feedback and strong understanding of the myoelectric control system prevent prosthesis users from interacting with their environment effectively. Although most research in augmented sensory feedback has focused on real-time regulation, sensory feedback is also essential for enabling the development and correction of internal models, which in turn are used for planning movements and reacting to control variability faster than otherwise possible in the presence of sensory delays. Read More

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http://dx.doi.org/10.1186/s12984-018-0417-4DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6069837PMC
July 2018
17 Reads

Measure of activity performance of the hand (MAP-Hand) questionnaire: linguistic validation, cultural adaptation and psychometric testing in people with rheumatoid arthritis in the UK.

BMC Musculoskelet Disord 2018 Jul 31;19(1):275. Epub 2018 Jul 31.

Centre for Health Sciences Research, University of Salford, Salford, UK.

Background: Developed in the Norway, the Measure of Activity Performance of the Hand (MAP-Hand) assesses 18 activities performed using the hands. It was developed for people with rheumatoid arthritis (RA) using patient generated items, which are scored on a 0-3 scale and summarised into a total score range (0 to 54). This study reports the development and psychometric testing of the British English MAP-Hand in a UK population of people with RA. Read More

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http://dx.doi.org/10.1186/s12891-018-2177-5DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6069818PMC
July 2018
7 Reads
1.900 Impact Factor

Spike detection: The first step towards an ENG-based neuroprosheses.

J Neurosci Methods 2018 Oct 17;308:294-308. Epub 2018 Jul 17.

Unit of Biomedical Robotics and Biomicrosystems, Università Campus Bio-medico di Roma, Via Alvaro del Portillo 21, 00128 Rome, Italy.

Background: Being able to control an upper limb prosthesis by means of the signals recorded from the peripheral nerves is not a trivial task. New generations of neural electrodes are able to record this information but the quality of the signal can make difficult the extraction of the useful information. Several techniques have been adopted both for central and peripheral acquisitions in order to remove the noise and/or enhance the electrical activity generated by the brain or carried by the nerves. Read More

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http://dx.doi.org/10.1016/j.jneumeth.2018.07.008DOI Listing
October 2018
3 Reads

Phantom motor execution as a treatment for phantom limb pain: protocol of an international, double-blind, randomised controlled clinical trial.

BMJ Open 2018 Jul 16;8(7):e021039. Epub 2018 Jul 16.

Biomechatronics and Neurorehabilitation Laboratory, Department of Electrical Engineering, Chalmers University of Technology, Goteborg, Sweden.

Introduction: Phantom limb pain (PLP) is a chronic condition that can greatly diminish quality of life. Control over the phantom limb and exercise of such control have been hypothesised to reverse maladaptive brain changes correlated to PLP. Preliminary investigations have shown that decoding motor volition using myoelectric pattern recognition, while providing real-time feedback via virtual and augmented reality (VR-AR), facilitates phantom motor execution (PME) and reduces PLP. Read More

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http://dx.doi.org/10.1136/bmjopen-2017-021039DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6082487PMC
July 2018
6 Reads

3D printed upper limb prosthetics.

Expert Rev Med Devices 2018 Jul 5;15(7):505-512. Epub 2018 Jul 5.

a Department of Bioengineering , Imperial College London , London , UK.

Introduction: In the last 15 years, the market for prosthetic arms and hands has shifted toward systems with greater degrees of actuation. There has also been a progressive use of emerging technologies to overcome hardware design challenges. Moreover, the proliferation of rapid prototyping has resulted in applications in the prosthetic market. Read More

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http://dx.doi.org/10.1080/17434440.2018.1494568DOI Listing
July 2018
4 Reads

A Novel Muscle Transfer for Independent Digital Control of a Myoelectric Prosthesis: The Starfish Procedure.

J Hand Surg Am 2019 Feb 19;44(2):163.e1-163.e5. Epub 2018 Jun 19.

OrthoCarolina Reconstructive Center for Lost Limbs, Atrium Healthcare, Charlotte, NC; Department of Orthopedic Surgery, Atrium Healthcare, Charlotte, NC.

Control of independent digital flexion and extension has remained an elusive goal in myoelectric prosthetics for upper extremity amputees. We first performed a cadaver study to determine the feasibility of transferring the interossei muscles for each digit to the dorsum of the hand without damaging the neurovascular pedicles. Once this capability was ensured, a clinical case was performed transferring the interossei of the middle and ring fingers to the dorsum of the hand where they could serve as a myoelectric signal for a partial hand amputee to allow individual digital control with a myoelectric prosthesis. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S03635023173144
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http://dx.doi.org/10.1016/j.jhsa.2018.04.009DOI Listing
February 2019
7 Reads

Coactivation index of children with congenital upper limb reduction deficiencies before and after using a wrist-driven 3D printed partial hand prosthesis.

J Neuroeng Rehabil 2018 Jun 8;15(1):48. Epub 2018 Jun 8.

Department of Biomechanics, Biomechanics Research Building, 3D Printed Prosthetic, Orthotic & Assistive Devices, University of Nebraska, 6001 Dodge St, Omaha, NE, 68182, USA.

Background: Co-contraction is the simultaneous activation of agonist and antagonist muscles that produces forces around a joint. It is unknown if the use of a wrist-driven 3D printed transitional prostheses has any influence on the neuromuscular motor control strategies of the affected hand of children with unilateral upper-limb reduction deficiencies. Thus, the purpose of the current investigation was to examine the coactivation index (CI) of children with congenital upper-limb reduction deficiencies before and after 6 months of using a wrist-driven 3D printed partial hand prosthesis. Read More

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http://dx.doi.org/10.1186/s12984-018-0392-9DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5994003PMC
June 2018
14 Reads

Current Concepts in Upper-Extremity Amputation.

J Hand Surg Am 2018 Jul 2;43(7):657-667. Epub 2018 Jun 2.

Department of Orthopaedic Surgery, Atrium Health, Charlotte, NC; OrthoCarolina Reconstructive Center for Lost Limbs, Charlotte, NC.

Advances in motor vehicle safety, trauma care, combat body armor, and cancer treatment have enhanced the life expectancy and functional expectations of patients with upper-extremity amputations. Upper-extremity surgeons have multiple surgical options to optimize the potential of emerging prosthetic technologies for this diverse patient group. Targeted muscle reinnervation is an evolving technique that improves control of myoelectric prostheses and can prevent or treat symptomatic neuromas. Read More

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http://dx.doi.org/10.1016/j.jhsa.2018.03.053DOI Listing
July 2018
3 Reads

Feature Extraction and Selection for Myoelectric Control Based on Wearable EMG Sensors.

Sensors (Basel) 2018 May 18;18(5). Epub 2018 May 18.

Institute of Biomedical Engineering, University of New Brunswick, Fredericton, NB E3B 5A3, Canada.

Specialized myoelectric sensors have been used in prosthetics for decades, but, with recent advancements in wearable sensors, wireless communication and embedded technologies, wearable electromyographic (EMG) armbands are now commercially available for the general public. Due to physical, processing, and cost constraints, however, these armbands typically sample EMG signals at a lower frequency (e.g. Read More

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http://dx.doi.org/10.3390/s18051615DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5982518PMC
May 2018
2 Reads

Assessment of orthotic needs in Iranian veterans with ankle and foot disorders.

Mil Med Res 2018 04 20;5(1):12. Epub 2018 Apr 20.

Janbazan Medical and Engineering Research Center (JMERC), Farrokh Ave, Velenjak, Tehran, Iran.

Background: War-related traumas can lead to orthopedic and neurological disorders in victims. However, the scope of such disorders may expand months or even years after the trauma. Orthotic treatment as a rehabilitation process aims to enable people with disabilities to reach and maintain their optimal physical, sensory, intellectual, psychological, and social functional levels. Read More

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https://mmrjournal.biomedcentral.com/articles/10.1186/s40779
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http://dx.doi.org/10.1186/s40779-018-0159-4DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5909243PMC
April 2018
6 Reads

An Alternative Myoelectric Pattern Recognition Approach for the Control of Hand Prostheses: A Case Study of Use in Daily Life by a Dysmelia Subject.

IEEE J Transl Eng Health Med 2018 12;6:2600112. Epub 2018 Mar 12.

Department of Electrical EngineeringChalmers University of Technology412 58GothenburgSweden.

The functionality of upper limb prostheses can be improved by intuitive control strategies that use bioelectric signals measured at the stump level. One such strategy is the decoding of motor volition via myoelectric pattern recognition (MPR), which has shown promising results in controlled environments and more recently in clinical practice. Moreover, not much has been reported about daily life implementation and real-time accuracy of these decoding algorithms. Read More

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http://dx.doi.org/10.1109/JTEHM.2018.2811458DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5881457PMC
March 2018
5 Reads

The clinical relevance of advanced artificial feedback in the control of a multi-functional myoelectric prosthesis.

J Neuroeng Rehabil 2018 Mar 27;15(1):28. Epub 2018 Mar 27.

Department for Trauma Surgery, Orthopedics and Plastic Surgery, University Medical Center Göttingen, Von-Siebold-Str. 3, 37075, Göttingen, Germany.

Background: To effectively replace the human hand, a prosthesis should seamlessly respond to user intentions but also convey sensory information back to the user. Restoration of sensory feedback is rated highly by the prosthesis users, and feedback is critical for grasping in able-bodied subjects. Nonetheless, the benefits of feedback in prosthetics are still debated. Read More

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http://dx.doi.org/10.1186/s12984-018-0371-1DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5870217PMC
March 2018
4 Reads

Targeted Muscle Reinnervation: Considerations for Future Implementation in Adolescents and Younger Children.

Plast Reconstr Surg 2018 06;141(6):1447-1458

Toronto, Ontario, Canada From the Division of Plastic and Reconstructive Surgery, Department of Surgery, and the Institute of Biomaterials and Biomedical Engineering, University of Toronto; the Division of Plastic and Reconstructive Surgery, The Hospital for Sick Children; and Orthotics and Prosthetics, Holland Bloorview Kids Rehabilitation Hospital.

Prosthetic options for patients with proximal upper limb absence are limited. Current above-elbow prostheses may restore basic motor functions for crucial activities, but they are cumbersome to operate, lack sensory feedback, and are often abandoned. Targeted muscle reinnervation is a novel surgical procedure that enhances the ability of patients with above-elbow amputations to intuitively control a myoelectric prosthesis. Read More

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http://dx.doi.org/10.1097/PRS.0000000000004370DOI Listing
June 2018
7 Reads

Evaluation of EMG pattern recognition for upper limb prosthesis control: a case study in comparison with direct myoelectric control.

J Neuroeng Rehabil 2018 Mar 15;15(1):23. Epub 2018 Mar 15.

Joint Department of Biomedical Engineering, North Carolina State University, Campus Box 7115, Raleigh, NC, 27695, USA.

Background: Although electromyogram (EMG) pattern recognition (PR) for multifunctional upper limb prosthesis control has been reported for decades, the clinical benefits have rarely been examined. The study purposes were to: 1) compare self-report and performance outcomes of a transradial amputee immediately after training and one week after training of direct myoelectric control and EMG pattern recognition (PR) for a two-degree-of-freedom (DOF) prosthesis, and 2) examine the change in outcomes one week after pattern recognition training and the rate of skill acquisition in two subjects with transradial amputations.

Methods: In this cross-over study, participants were randomized to receive either PR control or direct control (DC) training of a 2 DOF myoelectric prosthesis first. Read More

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http://dx.doi.org/10.1186/s12984-018-0361-3DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5856206PMC
March 2018
9 Reads

Design and analysis of an original powered foot clearance creator mechanism for walking in patients with spinal cord injury.

Disabil Rehabil Assist Technol 2018 Mar 12:1-5. Epub 2018 Mar 12.

b Orthotics and Prosthetics Department , University of Social Welfare and Rehabilitation Sciences , Tehran , Islamic Republic of Iran.

Background: The aim of this study was to assess the performance of an original powered foot clearance creator (PFCC) mechanism worn in conjunction with an isocentric reciprocal gait orthosis (IRGO) and evaluate its effect on trunk compensatory movements and spatiotemporal parameters in nine healthy subjects.

Method: A PFCC motorized mechanism was designed that incorporated twin sole plates, the movements of which enabled increased toe to floor clearance during swing phase. A prototype was constructed in combination with an IRGO, and hence was re-named as an IRGO-PFCC orthosis. Read More

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http://dx.doi.org/10.1080/17483107.2018.1447610DOI Listing
March 2018
5 Reads

User surveys support designing a prosthetic wrist that incorporates the Dart Thrower's Motion.

Disabil Rehabil Assist Technol 2018 Mar 7:1-4. Epub 2018 Mar 7.

a Bioengineering Department , University of Colorado Denver , Denver , CO , USA.

Aim: Prosthetic devices are not meeting the needs of people with upper limb amputations. Due to controlsidelimitations, prosthetic wrists cannot yet be fully articulated. This study sought to determine which wrist motions users felt were most important for completing activities of daily living. Read More

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http://dx.doi.org/10.1080/17483107.2018.1447607DOI Listing
March 2018
3 Reads

Design of a 3D-printed, open-source wrist-driven orthosis for individuals with spinal cord injury.

PLoS One 2018 22;13(2):e0193106. Epub 2018 Feb 22.

Department of Mechanical Engineering, University of Washington, Seattle, WA, United States of America.

Assistive technology, such as wrist-driven orthoses (WDOs), can be used by individuals with spinal cord injury to improve hand function. A lack of innovation and challenges in obtaining WDOs have limited their use. These orthoses can be heavy and uncomfortable for users and also time-consuming for orthotists to fabricate. Read More

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0193106PLOS
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5823450PMC
May 2018
9 Reads

Can We Achieve Intuitive Prosthetic Elbow Control Based on Healthy Upper Limb Motor Strategies?

Front Neurorobot 2018 2;12. Epub 2018 Feb 2.

Agathe Group, Institut des Systèmes Intelligents et de Robotique, UPMC Univ Paris 06, Sorbonne Universités, Paris, France.

Most transhumeral amputees report that their prosthetic device lacks functionality, citing the control strategy as a major limitation. Indeed, they are required to control several degrees of freedom with muscle groups primarily used for elbow actuation. As a result, most of them choose to have a one-degree-of-freedom myoelectric hand for grasping objects, a myoelectric wrist for pronation/supination, and a body-powered elbow. Read More

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http://dx.doi.org/10.3389/fnbot.2018.00001DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5801430PMC
February 2018
3 Reads

Role and Significance of Trunk and Upper Extremity Muscles in Walker-Assisted Paraplegic Gait: A Case Study.

Top Spinal Cord Inj Rehabil 2018 12;24(1):18-27. Epub 2017 Jun 12.

Mechanical Engineering Department, Sharif University of Technology, Tehran, Iran.

Understanding the role and significance of trunk and upper extremity muscles in paraplegic gait can help in designing more effective assistive devices for these patients and also provides valuable information for improving muscle strengthening programs. In a patient with a spinal cord injury (SCI) who could walk independently (rating scale of ambulatory capacity, 9) with the aid of bilateral ankle-foot orthosis and a walker, the kinematics, kinetics and electromyographic (EMG) activities of 16 muscles from the trunk and upper and lower extremities were recorded during gait. The onset, cessation, and duration of the EMG signal were associated with the 4 phases of each step, distinguished based on the kinematics results. Read More

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http://dx.doi.org/10.1310/sci16-00061DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5791920PMC
August 2018
23 Reads

Investigating the uncanny valley for prosthetic hands.

Prosthet Orthot Int 2018 Feb;42(1):21-27

1 Division of Neuoscience and Experimental Psychology, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK.

Background: In 1970, Mori hypothesised the existence of an 'uncanny valley', whereby stimuli falling short of being fully human are found to be creepy or eerie.

Objectives: To investigate how eerie people find different prosthetic hands and whether perceptions of eeriness can be accounted for by categorical ambiguity.

Study Design: Students participated in computerised experiments during which photographic images of hands were presented. Read More

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http://dx.doi.org/10.1177/0309364617744083DOI Listing
February 2018
4 Reads

Three-dimensional-printed upper limb prosthesis for a child with traumatic amputation of right wrist: A case report.

Medicine (Baltimore) 2017 Dec;96(52):e9426

Department of Orthopaedics, Peking University Shenzhen Hospital, Shenzhen, China.

Rationale: For traumatic upper limb amputees, the prohibitive cost of a custom-made prosthesis brings an insufferable financial burden for their families in developing countries. Three-dimensional (3D) printing allows for creating affordable, lightweight, customized, and well-fitting prosthesis, especially for the growing children.

Patient Concerns: We presented a case of an 8-year-old boy, who suffered a traumatic right wrist amputation as result of a mincing machine accident. Read More

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http://dx.doi.org/10.1097/MD.0000000000009426DOI Listing
December 2017
9 Reads

The impact of using an upper-limb prosthesis on the perception of real and illusory weight differences.

Psychon Bull Rev 2018 08;25(4):1507-1516

National Centre for Prosthetics and Orthotics, Department of Biomedical Engineering, University of Strathclyde, Glasgow, UK.

Little is known about how human perception is affected using an upper-limb prosthesis. To shed light on this topic, we investigated how using an upper-limb prosthesis affects individuals' experience of object weight. First, we examined how a group of upper-limb amputee prosthetic users experienced real mass differences and illusory weight differences in the context of the 'size-weight' illusion. Read More

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http://link.springer.com/10.3758/s13423-017-1425-2
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http://dx.doi.org/10.3758/s13423-017-1425-2DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6096644PMC
August 2018
10 Reads

Adjustment to finger amputation and silicone finger prosthesis use.

Disabil Rehabil 2018 Jan 11:1-6. Epub 2018 Jan 11.

a University rehabilitation Institute , Ljubljana , Slovenia.

Purpose: Finger amputations are the most common amputations of upper limbs. They influence hand function, general functioning and quality of life. One of the possibilities for rehabilitation after finger amputation is fitting a silicone finger prosthesis. Read More

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http://dx.doi.org/10.1080/09638288.2018.1424954DOI Listing
January 2018
7 Reads

Prosthesis Prescription Protocol of the Arm (PPP-Arm): The implementation of a national prosthesis prescription protocol.

Prosthet Orthot Int 2018 Feb 4;42(1):56-59. Epub 2018 Jan 4.

3 University of Groningen and University Medical Center Groningen, Groningen, The Netherlands.

Background And Aim: In order to create more uniformity in the prescription of upper limb prostheses by Dutch rehabilitation teams, the development and implementation of a Prosthesis Prescription Protocol of the upper limb (PPP-Arm) was initiated. The aim was to create a national digital protocol to structure, underpin, and evaluate the prescription of upper limb prostheses for clients with acquired or congenital arm defects.

Technique: Prosthesis Prescription Protocol of the Arm (PPP-Arm) was developed on the basis of the International Classification of Functioning and consisted of several layers. Read More

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http://journals.sagepub.com/doi/10.1177/0309364617747962
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http://dx.doi.org/10.1177/0309364617747962DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5808813PMC
February 2018
9 Reads

Transhumeral loading during advanced upper extremity activities of daily living.

PLoS One 2017 19;12(12):e0189418. Epub 2017 Dec 19.

Department of Orthopaedics, University of Utah, Salt Lake City, Utah, United States of America.

Percutaneous osseointegrated (OI) implants for direct skeletal attachment of upper extremity prosthetics represent an alternative to traditional socket suspension that may yield improved patient function and satisfaction. This is especially true in high-level, transhumeral amputees where prosthetic fitting is challenging and abandonment rates remain high. However, maintaining mechanical integrity of the bone-implant interface is crucial for safe clinical introduction of this technology. Read More

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0189418PLOS
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5736202PMC
January 2018
12 Reads

Utilising three-dimensional printing techniques when providing unique assistive devices: A case report.

Prosthet Orthot Int 2018 Feb 11;42(1):45-49. Epub 2017 Dec 11.

Department of Biomedical Engineering, University of Strathclyde, Glasgow, UK.

Background: The evolution of three-dimensional printing into prosthetics has opened conversations about the availability and cost of prostheses. This report will discuss how a prosthetic team incorporated additive manufacture techniques into the treatment of a patient with a partial hand amputation to create and test a unique assistive device which he could use to hold his French horn. Case description and methods: Using a process of shape capture, photogrammetry, computer-aided design and finite element analysis, a suitable assistive device was designed and tested. Read More

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http://dx.doi.org/10.1177/0309364617741776DOI Listing
February 2018
10 Reads

Hand Functions of Myoelectric and 3D-Printed Pressure-Sensored Prosthetics: A Comparative Study.

Ann Rehabil Med 2017 Oct 31;41(5):875-880. Epub 2017 Oct 31.

Department of Rehabilitation Medicine, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea.

The loss of an upper limb significantly limits the functional activities of daily living. A huge emphasis is placed on the manipulation, shape, weight, and comfort of a prosthesis, to enable its use as an inherent body part. Even with technological advances, customized upper-extremity myoelectric prosthesis remain heavy and expensive. Read More

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http://dx.doi.org/10.5535/arm.2017.41.5.875DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5698676PMC
October 2017
4 Reads

Design and Development of a Novel Upper-Limb Cycling Prosthesis.

Bioengineering (Basel) 2017 Nov 16;4(4). Epub 2017 Nov 16.

Department of Occupational Therapy, Prosthetics and Orthotics, Oslo and Akershus University College of Applied Sciences, NO-0130 Oslo, Norway.

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. Read More

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http://www.mdpi.com/2306-5354/4/4/89
Publisher Site
http://dx.doi.org/10.3390/bioengineering4040089DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5746756PMC
November 2017
11 Reads

Functional changes through the usage of 3D-printed transitional prostheses in children.

Disabil Rehabil Assist Technol 2017 Nov 8:1-7. Epub 2017 Nov 8.

a Department of Biomechanics , University of Nebraska , Omaha , NE , USA.

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. Read More

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http://dx.doi.org/10.1080/17483107.2017.1398279DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5940585PMC
November 2017
12 Reads