442 results match your criteria Upper Limb Prosthetics


Technological Advances in Prosthesis Design and Rehabilitation Following Upper Extremity Limb Loss.

Curr Rev Musculoskelet Med 2020 Jun 3. Epub 2020 Jun 3.

Department of Orthopaedics, San Antonio Military Medical Center, 3551 Roger Brooke Drive, JBSA-Ft Sam Houston, TX, 78234, USA.

Purpose Of Review: The complexity of the human extremity, particularly the upper extremity and the hand, allows us to interact with the world. Prosthetists have struggled to recreate the intuitive motor control, light touch sensation, and proprioception of the innate limb in a manner that reflects the complexity of its native form and function. Nevertheless, recent advances in prosthesis technology, surgical innovations, and enhanced rehabilitation appear promising for patients with limb loss who hope to return to their pre-injury level of function. Read More

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http://dx.doi.org/10.1007/s12178-020-09656-6DOI Listing

Targeted Muscle Reinnervation Improves Residual Limb Pain, Phantom Limb Pain, and Limb Function: A Prospective Study of 33 Major Limb Amputees.

Clin Orthop Relat Res 2020 May 20. Epub 2020 May 20.

L. M. Mioton, G. A. Dumanian, N. Shah, C. S. Qiu, J. H. Ko, S. W. Jordan, Division of Plastic and Reconstructive Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, USA W. J. Ertl, The Department of Orthopedic Surgery, The University of Oklahoma, Oklahoma City, OK, USA B. K. Potter, J. M. Souza, Department of Surgery, Walter Reed National Military Medical Center, Uniformed Services University of Health Sciences, Bethesda, MD, USA I. L. Valerio, The Department of Plastic Surgery, The Ohio State University, Columbus, OH, USA.

Background: Targeted muscle reinnervation is an emerging surgical technique to treat neuroma pain whereby sensory and mixed motor nerves are transferred to nearby redundant motor nerve branches. In a recent randomized controlled trial, targeted muscle reinnervation was recently shown to reduce postamputation pain relative to conventional neuroma excision and muscle burying.

Questions/purposes: (1) Does targeted muscle reinnervation improve residual limb pain and phantom limb pain in the period before surgery to 1 year after surgery? (2) Does targeted muscle reinnervation improve Patient-reported Outcome Measurement System (PROMIS) pain intensity and pain interference scores at 1 year after surgery? (3) After 1 year, does targeted muscle reinnervation improve functional outcome scores (Orthotics Prosthetics User Survey [OPUS] with Rasch conversion and Neuro-Quality of Life [Neuro-QOL])?

Methods: Data on patients who were ineligible for randomization or declined to be randomized and underwent targeted muscle reinnervation for pain were gathered for the present analysis. Read More

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http://dx.doi.org/10.1097/CORR.0000000000001323DOI Listing

A practical 3D-printed soft robotic prosthetic hand with multi-articulating capabilities.

PLoS One 2020 14;15(5):e0232766. Epub 2020 May 14.

Department of Mechanical Engineering, The University of Melbourne, Parkville, VIC, Australia.

Soft robotic hands with monolithic structure have shown great potential to be used as prostheses due to their advantages to yield light weight and compact designs as well as its ease of manufacture. However, existing soft prosthetic hands design were often not geared towards addressing some of the practical requirements highlighted in prosthetics research. The gap between the existing designs and the practical requirements significantly hampers the potential to transfer these designs to real-world applications. Read More

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0232766PLOS
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7224508PMC
May 2020
3.234 Impact Factor

Asymmetry of mass and motion affects the regulation of whole-body angular momentum in individuals with upper limb absence.

Clin Biomech (Bristol, Avon) 2020 Jun 23;76:105015. Epub 2020 Apr 23.

Northwestern University Prosthetics-Orthotics Center, Dept. of Physical Medicine & Rehabilitation, Feinberg School of Medicine, 680 North Lake Shore Drive, Suite 1100, Chicago, IL 60611, USA; Jesse Brown VA Medical Center, 820 S Damen Ave, Chicago, IL 60612, USA. Electronic address:

Background: There is a high fall prevalence in individuals with upper limb absence, which may be related to a momentum imbalance resulting from the loss of all or part of one arm. The purpose of this study was to characterise whole-body angular momentum in individuals with upper limb absence during walking, and determine the effect of restoring the mass and inertial properties of the impaired side with a mock prosthesis.

Methods: Ten individuals with unilateral upper limb absence walked at self-selected speeds, with and without a mock prosthesis. Read More

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http://dx.doi.org/10.1016/j.clinbiomech.2020.105015DOI Listing

A custom, functional and lifelike passive prosthetic hand for infants and small toddlers: Clinical note.

Prosthet Orthot Int 2020 Jun 17;44(3):180-184. Epub 2020 Apr 17.

Bloorview Research Institute, Holland Bloorview Kids Rehabilitation Hospital, Toronto, ON, Canada.

Background And Aim: For infants and small toddlers with congenital upper limb deficiencies, terminal devices mainly provide either cosmesis or functionality. We report a clinical note about fitting a child with a low-cost passive hand targeting both functionality and cosmesis.

Technique: An elastomeric, alloy-wire-reinforced hand was fabricated using additive manufacturing to allow independent positioning of the digits. Read More

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http://dx.doi.org/10.1177/0309364620909276DOI Listing
June 2020
1.073 Impact Factor

Mechanotactile Sensory Feedback Improves Embodiment of a Prosthetic Hand During Active Use.

Front Neurosci 2020 26;14:263. Epub 2020 Mar 26.

Division of Physical Medicine and Rehabilitation, Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada.

There have been several advancements in the field of myoelectric prostheses to improve dexterity and restore hand grasp patterns for persons with upper limb loss, including robust control strategies, novel sensory feedback, and multifunction prosthetic terminal devices. Although these advancements have shown to improve prosthesis performance, a key element that may further improve acceptance is often overlooked. Embodiment, which encompasses the feeling of owning, controlling and locating the device without the need to constantly look at it, has been shown to be affected by sensory feedback. Read More

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http://dx.doi.org/10.3389/fnins.2020.00263DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7113400PMC

Advanced technologies for intuitive control and sensation of prosthetics.

Biomed Eng Lett 2020 Feb 8;10(1):119-128. Epub 2019 Aug 8.

6National Institute of Biomedical Imaging and Bioengineering, National Institute of Health, Bethesda, MD 20817 USA.

The Department of Defense, Department of Veterans Affairs and National Institutes of Health have invested significantly in advancing prosthetic technologies over the past 25 years, with the overall intent to improve the function, participation and quality of life of Service Members, Veterans, and all United States Citizens living with limb loss. These investments have contributed to substantial advancements in the control and sensory perception of prosthetic devices over the past decade. While control of motorized prosthetic devices through the use of electromyography has been widely available since the 1980s, this technology is not intuitive. Read More

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http://dx.doi.org/10.1007/s13534-019-00127-7DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7046895PMC
February 2020

Development of Bilateral Heterotopic Ossification After Survival of Life Threatening Purpura Fulminans.

Cureus 2020 Jan 21;12(1):e6731. Epub 2020 Jan 21.

Plastic Surgery, The Johns Hopkins University School of Medicine, Baltimore, USA.

Heterotopic ossification has been reported in patients who have undergone traumatic amputations, burn injuries, and total hip arthroplasty; however, the incidence of heterotopic ossification following purpura fulminans has only been reported in one case with unilateral involvement. Here we present a bilateral lower extremity case of heterotopic ossification as sequelae of purpura fulminans.  A 34-year-old male smoker with a past medical history of stab wounds to the chest and abdomen requiring emergent exploratory laparotomy, diaphragmatic repair, and splenectomy 15 years ago presented to the emergency department with a rapid onset of high fevers, chills and myalgia. Read More

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http://dx.doi.org/10.7759/cureus.6731DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7034744PMC
January 2020

A regenerative peripheral nerve interface allows real-time control of an artificial hand in upper limb amputees.

Sci Transl Med 2020 Mar;12(533)

Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA.

Peripheral nerves provide a promising source of motor control signals for neuroprosthetic devices. Unfortunately, the clinical utility of current peripheral nerve interfaces is limited by signal amplitude and stability. Here, we showed that the regenerative peripheral nerve interface (RPNI) serves as a biologically stable bioamplifier of efferent motor action potentials with long-term stability in upper limb amputees. Read More

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http://dx.doi.org/10.1126/scitranslmed.aay2857DOI Listing

Blast injury of the hand related to warfare explosive devices: experience from the French Military Health Service.

BMJ Mil Health 2020 Feb 20. Epub 2020 Feb 20.

Department of Orthopaedic, Trauma and Reconstructive Surgery, Percy Military Hospital, Clamart, France.

Introduction: The objective was to report on the experience of the French Army Health Service in the management of blast injury of the hands related to warfare explosive devices.

Methods: A retrospective study was conducted in the Percy Military Hospital (role 4 medical treatment facility) among French soldiers who presented with a combat-related blast injury of the hand between 2002 and 2018. The functional result was assessed by the disabilities of the arm, shoulder and hand (DASH) and the Orthotics and Prosthetics User Survey (OPUS, upper extremity functional status) scores. Read More

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http://dx.doi.org/10.1136/jramc-2019-001326DOI Listing
February 2020

Gaze, behavioral, and clinical data for phantom limbs after hand amputation from 15 amputees and 29 controls.

Sci Data 2020 02 20;7(1):60. Epub 2020 Feb 20.

Department of Neurology, University Hospital of Zurich, Zurich, Switzerland.

Despite recent advances in prosthetics, many upper limb amputees still use prostheses with some reluctance. They often do not feel able to incorporate the artificial hand into their bodily self. Furthermore, prosthesis fitting is not usually tailored to accommodate the characteristics of an individual's phantom limb sensations. Read More

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http://dx.doi.org/10.1038/s41597-020-0402-1DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7033227PMC
February 2020

Gaze, visual, myoelectric, and inertial data of grasps for intelligent prosthetics.

Sci Data 2020 Feb 10;7(1):43. Epub 2020 Feb 10.

Information Systems Institute, University of Applied Sciences Western Switzerland (HES-SO Valais), Sierre, Switzerland.

A hand amputation is a highly disabling event, having severe physical and psychological repercussions on a person's life. Despite extensive efforts devoted to restoring the missing functionality via dexterous myoelectric hand prostheses, natural and robust control usable in everyday life is still challenging. Novel techniques have been proposed to overcome the current limitations, among them the fusion of surface electromyography with other sources of contextual information. Read More

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http://dx.doi.org/10.1038/s41597-020-0380-3DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7010656PMC
February 2020

Prosthesis satisfaction in a national sample of Veterans with upper limb amputation.

Prosthet Orthot Int 2020 Apr 21;44(2):81-91. Epub 2020 Jan 21.

Brown University, Providence, RI, USA.

Background: Many persons with upper limb amputation reject prostheses, and many are not satisfied with their devices. Research is needed to understand modifiable factors related to device satisfaction. Myoelectric devices with multiple degrees of freedom are now available; however, no studies have examined whether they lead to greater device satisfaction. Read More

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http://dx.doi.org/10.1177/0309364619895201DOI Listing
April 2020
1.073 Impact Factor

A Simple Method to Estimate Muscle Currents from HD-sEMG and MRI using Electrical Network and Graph Theory

Conf Proc IEEE Eng Med Biol Soc 2019 07;2019:2657-2662

In the last years the spread of hand prosthetics has fueled the research on the field of signal processing applied on physiologic data. At the state of the art there are different algorithms that allow a precise estimation of hand movements, the majority of whom work just on the electrode space. Even though there are signal processing methods that access single muscle information, they are still premature for a real application on prosthetics. Read More

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http://dx.doi.org/10.1109/EMBC.2019.8856616DOI Listing

Osseointegrated prostheses for the rehabilitation of amputees (OPRA): results and clinical perspective.

Expert Rev Med Devices 2020 Jan 13;17(1):17-25. Epub 2020 Jan 13.

USU-Walter Reed Department of Surgery, Walter Reed National Military Medical Center, Bethesda, MD, USA.

: Patients who undergo extremity amputation have historically used socket prosthetics to ambulate and perform daily functions; however, these prosthetics can be limited by poor terminal control and wear issues. In patients who have difficulty wearing their prostheses or with upper extremity amputations, osseointegrated implants may offer better function and quality of life. The Osseointegrated Prostheses for the Rehabilitation of Amputees (OPRA) was the first such device to become commercially available. Read More

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http://dx.doi.org/10.1080/17434440.2020.1704623DOI Listing
January 2020

Investigation of Channel Selection for Gesture Classification for Prosthesis Control Using Force Myography: A Case Study.

Front Bioeng Biotechnol 2019 10;7:331. Epub 2019 Dec 10.

Menrva Research Group, Schools of Mechatronic Systems Engineering and Engineering Science, Simon Fraser University, Metro Vancouver, BC, Canada.

Various human machine interfaces (HMIs) are used to control prostheses, such as robotic hands. One of the promising HMIs is Force Myography (FMG). Previous research has shown the potential for the use of high density FMG (HD-FMG) that can lead to higher accuracy of prosthesis control. Read More

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http://dx.doi.org/10.3389/fbioe.2019.00331DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6914858PMC
December 2019

Ultrasonography and electromyography based hand motion intention recognition for a trans-radial amputee: A case study.

Med Eng Phys 2020 01 19;75:45-48. Epub 2019 Dec 19.

Intelligent Systems and Biomedical Robotics Group, School of Computing, University of Portsmouth, Portsmouth PO1 3HE, UK; The State Key Laboratory of Mechanical System and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China. Electronic address:

Surface electromyography (sEMG) has dominated upper-limb prosthesis control for decades due to its simplicity and effectiveness [1-3]. However, the inherent variability of EMG signal hinders the flexible and accurate control of advanced multi-functional prosthesis. This study is an attempt to use ultrasonography (US) as an alternative for prosthetic hand control. Read More

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http://dx.doi.org/10.1016/j.medengphy.2019.11.005DOI Listing
January 2020

Towards Including End-Users in the Design of Prosthetic Hands: Ethical Analysis of a Survey of Australians with Upper-Limb Difference.

Sci Eng Ethics 2020 04 12;26(2):981-1007. Epub 2019 Dec 12.

ARC Centre of Excellence for Electromaterials Science, Wollongong, Australia.

Advances in prosthetic design should benefit people with limb difference. But empirical evidence demonstrates a lack of uptake of prosthetics among those with limb difference, including of advanced designs. Non-use is often framed as a problem of prosthetic design or a user's response to prosthetics. Read More

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http://dx.doi.org/10.1007/s11948-019-00168-2DOI Listing

Psychometric characterization of incidental feedback sources during grasping with a hand prosthesis.

J Neuroeng Rehabil 2019 12 10;16(1):155. Epub 2019 Dec 10.

Advanced Rehabilitation Technology (ART) Lab, Department for Trauma Surgery, Orthopaedics and Plastic Surgery, Universitätsmedizin Göttingen (UMG), Göttingen, Germany.

Background: A prosthetic system should ideally reinstate the bidirectional communication between the user's brain and its end effector by restoring both motor and sensory functions lost after an amputation. However, current commercial prostheses generally do not incorporate somatosensory feedback. Even without explicit feedback, grasping using a prosthesis partly relies on sensory information. Read More

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http://dx.doi.org/10.1186/s12984-019-0622-9DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6902515PMC
December 2019

Evaluation of Optimal Vibrotactile Feedback for Force-Controlled Upper Limb Myoelectric Prostheses.

Sensors (Basel) 2019 Nov 28;19(23). Epub 2019 Nov 28.

Human Robotics Group, University of Alicante, 03690 Alicante, Spain.

The main goal of this study is to evaluate how to optimally select the best vibrotactile pattern to be used in a closed loop control of upper limb myoelectric prostheses as a feedback of the exerted force. To that end, we assessed both the selection of actuation patterns and the effects of the selection of frequency and amplitude parameters to discriminate between different feedback levels. A single vibrotactile actuator has been used to deliver the vibrations to subjects participating in the experiments. Read More

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http://dx.doi.org/10.3390/s19235209DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6928933PMC
November 2019

Effect of vibration characteristics and vibror arrangement on the tactile perception of the upper arm in healthy subjects and upper limb amputees.

J Neuroeng Rehabil 2019 11 13;16(1):138. Epub 2019 Nov 13.

Team HYBRID; INCIA laboratory, CNRS UMR 5287, University of Bordeaux, 146 rue Leo Saignat, Bordeaux, 33076, France.

Background: Vibrotactile stimulation is a promising venue in the field of prosthetics to retrain sensory feedback deficits following amputation. Discrimination is well established at the forearm level but not at the upper arm level. Moreover, the effects of combining vibration characteristics such as duration and intensity has never been investigated. Read More

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http://dx.doi.org/10.1186/s12984-019-0597-6DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6854744PMC
November 2019

Effects of Upper Limb Loss or Absence and Prosthesis Use on Postural Control of Standing Balance.

Am J Phys Med Rehabil 2020 05;99(5):366-371

From the Jesse Brown VA Medical Center, Chicago, Illinois (MJM, RS, SAG); and Northwestern University Prosthetics-Orthotics Center, Department of Physical Medicine & Rehabilitation, Feinberg School of Medicine, Chicago, Illinois (MJM, TS, SAG).

Objective: Persons with upper limb loss or absence experience a high prevalence of falls. Although upper limb prostheses help perform upper limb tasks, fall likelihood increases by six times with prosthesis use. The effects of upper limb loss or absence and prosthesis use on postural control are poorly documented. Read More

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http://dx.doi.org/10.1097/PHM.0000000000001339DOI Listing

A Comparison of Force Sensing for Applications in Prosthetic Haptic Feedback.

Crit Rev Biomed Eng 2019 ;47(2):109-119

School of Biological and Health Systems Engineering, Arizona State University, Tempe, Arizona.

The current study presents a comparison of two load sensor designs that can be applied toward haptic feedback sensing in upper limb prosthetics. A lab-standard capacitive load cell sensor is discussed, which is succeeded by the proposal of an electrochemical sensor. Experiments were conducted primarily as a proof-of-principle study to evaluate sensor characteristics for prosthetic applications. Read More

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http://dx.doi.org/10.1615/CritRevBiomedEng.2019026514DOI Listing
January 2019

A characterisation of established unilateral transfemoral amputee gait using 3D kinematics, kinetics and oxygen consumption measures.

Gait Posture 2020 01 3;75:98-104. Epub 2019 Oct 3.

West of Scotland Rehabilitation and Mobility Centre, Queen Elizabeth University Hospital, NHS Greater Glasgow and Clyde, 1345 Govan Road, Glasgow, G51 4TF, UK. Electronic address:

Background: Persons with unilateral transfemoral (UTF) amputation are known to walk with less efficiency than able-bodied individuals, therefore understanding the gait deviations that drive this inefficiency was considered to be important.

Research Questions: What are the differences in gait outcomes between persons with UTF amputation and able-bodied persons? What is the prevalence of specific gait deviations within this group?

Methods: Using a cross-sectional study design, the level over ground gait of established prosthetics service users with UTF amputation using mechanical knee joints (n=60) were compared with able-bodied persons (n=10). Gait profile score, walking velocity, step length, step length symmetry ratio, step time symmetry ratio, vertical ground reaction force symmetry index, base of support, centre of mass deviation and metabolic energy expenditure were measured. Read More

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http://dx.doi.org/10.1016/j.gaitpost.2019.09.029DOI Listing
January 2020
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Experimental Assessment of the Interface Electronic System for PVDF-Based Piezoelectric Tactile Sensors.

Sensors (Basel) 2019 Oct 14;19(20). Epub 2019 Oct 14.

Department of Electrical, Electronic and Telecommunication Engineering and Naval architecture (DITEN)-University of Genoa, via Opera Pia 11, 16145 Genoa, Italy.

Tactile sensors are widely employed to enable the sense of touch for applications such as robotics and prosthetics. In addition to the selection of an appropriate sensing material, the performance of the tactile sensing system is conditioned by its interface electronic system. On the other hand, due to the need to embed the tactile sensing system into a prosthetic device, strict requirements such as small size and low power consumption are imposed on the system design. Read More

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http://dx.doi.org/10.3390/s19204437DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6832555PMC
October 2019
2 Reads

Functional evaluation of a non-assembly 3D-printed hand prosthesis.

Proc Inst Mech Eng H 2019 Nov 6;233(11):1122-1131. Epub 2019 Sep 6.

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

In developing countries, the access of amputees to prosthetic devices is very limited. In a way to increase accessibility of prosthetic hands, we have recently developed a new approach for the design and 3D printing of non-assembly active hand prostheses using inexpensive 3D printers working on the basis of material extrusion technology. This article describes the design of our novel 3D-printed hand prosthesis and also shows the mechanical and functional evaluation in view of its future use in developing countries. Read More

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http://dx.doi.org/10.1177/0954411919874523DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6790990PMC
November 2019
1 Read

A randomized control trial comparing the effects of motor relearning programme and mirror therapy for improving upper limb motor functions in stroke patients.

J Pak Med Assoc 2019 Sep;69(9):1242-1245

Department of Health Sciences NCS University System, Swabi.

Objective: To compare the effectiveness of motor relearning programme with mirror therapy in upper limb motor functions of stroke patients.

Methods: The randomised control trial was conducted in Rafsan Neuro Rehabilitation Centre, Peshawar, Pakistan, from June to December 2017, and comprised stroke patients who had Mini Mental State Examination score over 24. Participants were randomly allocated into treatment and control groups. Read More

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September 2019
2 Reads

Biomechanical analysis of users of multi-articulating externally powered prostheses with and without their device.

Prosthet Orthot Int 2019 Dec 30;43(6):618-628. Epub 2019 Aug 30.

School of Health and Rehabilitation Sciences, The Ohio State University, Columbus, OH, USA.

Background: Loss of the hand results in significant functional deficits and requires adaptation of movement patterns which may result in overuse injuries. An externally powered prosthesis may improve function of the affected limb and reduce the overreliance on the intact side; however, little research has been done in this area.

Objective: Investigate changes in upper limb function and kinematics in individuals with partial-hand amputations performing a functional assessment by comparing results with and without a multi-articulating hand prosthesis. Read More

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http://dx.doi.org/10.1177/0309364619871185DOI Listing
December 2019
1 Read

Regional variations of in vivo surface stiffness of soft tissue layers of musculoskeletal extremities.

J Biomech 2019 Oct 8;95:109307. Epub 2019 Aug 8.

Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA; Computational Biomodeling (CoBi) Core, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA. Electronic address:

Surface stiffness of bulk soft tissue in musculoskeletal extremities is important to consider in the design of prosthetics, exoskeletons, and protective gear. This knowledge is also foundational for surgical simulation and clinical interventions leveraging manipulation of the musculoskeletal surfaces. Injuries to musculoskeletal extremities are common and surgical and preventive interventions require interactions between various objects such as surgical tools and support surfaces with tissue boundaries. Read More

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http://dx.doi.org/10.1016/j.jbiomech.2019.08.001DOI Listing
October 2019
2 Reads

3D printing and amputation: a scoping review.

Disabil Rehabil Assist Technol 2019 Aug 16:1-20. Epub 2019 Aug 16.

b St. John's Rehab Research Program, Evaluative Clinical Sciences, Sunnybrook Research Institute , Toronto , Canada.

Three-dimensional (3D) printing is an innovative technology being utilized to create prostheses for individuals with limb loss. However, there is a paucity of research on the feasibility of using this technology to fabricate prostheses. A scoping review was conducted to map the literature on 3D printing and its applications in the field of amputation. Read More

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https://www.tandfonline.com/doi/full/10.1080/17483107.2019.1
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http://dx.doi.org/10.1080/17483107.2019.1646825DOI Listing
August 2019
1 Read

Low-Cost and Highly Sensitive Wearable Sensor Based on Napkin for Health Monitoring.

Sensors (Basel) 2019 Aug 5;19(15). Epub 2019 Aug 5.

Department of Chemistry, Northeastern University, Shenyang 110819, China.

The development of sensors with high sensitivity, good flexibility, low cost, and capability of detecting multiple inputs is of great significance for wearable electronics. Herein, we report a napkin-based wearable capacitive sensor fabricated by a novel, low-cost, and facile strategy. The capacitive sensor is composed of two pieces of electrode plates manufactured by spontaneous assembly of silver nanowires (NWs) on a polydimethylsiloxane (PDMS)-patterned napkin. Read More

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http://dx.doi.org/10.3390/s19153427DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6695873PMC
August 2019
7 Reads

Estimating Deep Muscles Activation from High Density Surface EMG Using Graph Theory.

IEEE Int Conf Rehabil Robot 2019 06;2019:405-410

In the recent years important steps forward have been made in the field of signal processing on muscle signals for hand prosthetics control. At the state of the art different algorithms and techniques allow a precise estimation of hand movements. However, they mostly work exclusively on the electrode space, not seeking for any information about the currents on the contracted muscles. Read More

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http://dx.doi.org/10.1109/ICORR.2019.8779462DOI Listing

Conception, design, and fabrication of novel cost-effective partial-hand prosthetic devices for a quadrilateral individual with limb loss.

Prosthet Orthot Int 2019 Aug;43(4):459-463

Foot Care & Limb Design Centre, Tan Tock Seng Hospital, Singapore.

Background And Aim: The author designed customized upper-limb prosthetic devices for a 22-year-old man with quadrilateral limb loss. The devices were created to meet his functional requirements, while remaining cost-effective. What made this solution unique was that it utilized low-cost items that were easily sourced and maintained. Read More

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http://dx.doi.org/10.1177/0309364619843433DOI Listing
August 2019
3 Reads

Effects of upper limb loss and prosthesis use on proactive mechanisms of locomotor stability.

J Electromyogr Kinesiol 2019 Oct 23;48:145-151. Epub 2019 Jul 23.

Jesse Brown VA Medical Center, Chicago, IL, USA; Northwestern University Prosthetics-Orthotics Center, Dept. of Physical Medicine & Rehabilitation, Feinberg School of Medicine, Chicago, IL, USA.

Persons with upper limb loss (ULL) experience a high prevalence of falls, with the majority of falls occurring when walking. This issue may be related to altered arm dynamics, which play an important role in proactive mechanisms of locomotor stability. This study investigated effects of ULL and prosthesis use on proactive stability mechanisms, particularly if matching the mass and inertia of the impaired limb to the sound limb would enhance locomotor stability. Read More

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http://dx.doi.org/10.1016/j.jelekin.2019.07.012DOI Listing
October 2019
5 Reads

Clinical outcomes of a low-cost single-channel myoelectric-interface three-dimensional hand prosthesis.

Arch Plast Surg 2019 Jul 15;46(4):303-310. Epub 2019 Jul 15.

Department of Plastic Surgery, SMG-SNU Boramae Medical Center, Seoul, Korea.

Background: Prosthetic hands with a myoelectric interface have recently received interest within the broader category of hand prostheses, but their high cost is a major barrier to use. Modern three-dimensional (3D) printing technology has enabled more widespread development and cost-effectiveness in the field of prostheses. The objective of the present study was to evaluate the clinical impact of a low-cost 3D-printed myoelectric-interface prosthetic hand on patients' daily life. Read More

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http://dx.doi.org/10.5999/aps.2018.01375DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6657188PMC
July 2019
4 Reads

Clinical evaluation of the refined clothespin relocation test: A pilot study.

Prosthet Orthot Int 2019 Oct 2;43(5):485-491. Epub 2019 Jul 2.

Faculty of Engineering and Science, University of Greenwich, Chatham Maritime, UK.

Background: The refined clothespin relocation test is a test used to evaluate the performance of a prosthesis user by analysing the compensatory motions and time to complete a grasping and placement exercise. The test has been studied previously with a motion capture laboratory and has now been adapted for a clinical setting. A comparison of prosthesis user to an able-bodied group is needed to determine efficacy as an assessment tool. Read More

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http://dx.doi.org/10.1177/0309364619843779DOI Listing
October 2019
6 Reads

Clinic Use at the Departments of Defense and Veterans Affairs Following Combat Related Amputations.

Mil Med 2020 02;185(1-2):e244-e253

VA San Diego Healthcare System, 3350 La Jolla Village Dr, San Diego, CA 92161.

Introduction: Little population-based research has described the transition from Department of Defense (DoD) to Department of Veterans Affairs (VA) healthcare following combat related amputations. The objectives were to describe (1) to what extent patients used either DoD only facilities, both DoD and VA facilities, or VA only facilities during the first 5 years postinjury, (2) which specific clinics were used and (3) clinic use among patients with different levels of amputation (upper versus lower), and among patients with early or late amputation.

Materials And Methods: This was a retrospective analysis of health data extracted from the expeditionary medical encounter database (EMED) and national DoD and VA databases. Read More

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http://dx.doi.org/10.1093/milmed/usz149DOI Listing
February 2020
10 Reads

When Less Is More - Discrete Tactile Feedback Dominates Continuous Audio Biofeedback in the Integrated Percept While Controlling a Myoelectric Prosthetic Hand.

Front Neurosci 2019 6;13:578. Epub 2019 Jun 6.

The BioRobotics Institute, Scuola Superiore Sant'Anna, Pisa, Italy.

State of the art myoelectric hand prostheses can restore some feedforward motor function to their users, but they cannot yet restore sensory feedback. It has been shown, using psychophysical tests, that multi-modal sensory feedback is readily used in the formation of the users' representation of the control task in their central nervous system - their internal model. Hence, to fully describe the effect of providing feedback to prosthesis users, not only should functional outcomes be assessed, but so should the internal model. Read More

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http://dx.doi.org/10.3389/fnins.2019.00578DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6563774PMC
June 2019
5 Reads

Differentiating Variations in Thumb Position From Recordings of the Surface Electromyogram in Adults Performing Static Grips, a Proof of Concept Study.

Front Bioeng Biotechnol 2019 22;7:123. Epub 2019 May 22.

Department of Biomedical Engineering, University of Strathclyde, Glasgow, United Kingdom.

Hand gesture and grip formations are produced by the muscle synergies arising between extrinsic and intrinsic hand muscles and many functional hand movements involve repositioning of the thumb relative to other digits. In this study we explored whether changes in thumb posture in able-body volunteers can be identified and classified from the modulation of forearm muscle surface-electromyography (sEMG) alone without reference to activity from the intrinsic musculature. In this proof-of-concept study, our goal was to determine if there is scope to develop prosthetic hand control systems that may incorporate myoelectric thumb-position control. Read More

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http://dx.doi.org/10.3389/fbioe.2019.00123DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6541154PMC
May 2019
6 Reads

Comparison of vibrotactile and joint-torque feedback in a myoelectric upper-limb prosthesis.

J Neuroeng Rehabil 2019 06 11;16(1):70. Epub 2019 Jun 11.

Department of Mechanical Engineering, Johns Hopkins University, 3101 Wyman Park Dr., Baltimore, 21218, USA.

Background: Despite the technological advancements in myoelectric prostheses, body-powered prostheses remain a popular choice for amputees, in part due to the natural sensory advantage they provide. Research on haptic feedback in myoelectric prostheses has delivered mixed results. Furthermore, there is limited research comparing various haptic feedback modalities in myoelectric prostheses. Read More

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http://dx.doi.org/10.1186/s12984-019-0545-5DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6558922PMC
June 2019
20 Reads

Upper- and lower-limb amputees show reduced levels of eeriness for images of prosthetic hands.

Psychon Bull Rev 2019 Aug;26(4):1295-1302

Division of Neuroscience and Experimental Psychology, University of Manchester, Manchester, UK.

The "uncanny phenomenon" describes the feeling of unease associated with seeing an image that is close to appearing human. Prosthetic hands in particular are well known to induce this effect. Little is known, however, about this phenomenon from the viewpoint of prosthesis users. Read More

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http://link.springer.com/10.3758/s13423-019-01612-x
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http://dx.doi.org/10.3758/s13423-019-01612-xDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6710333PMC
August 2019
12 Reads

Learning the signatures of the human grasp using a scalable tactile glove.

Nature 2019 05 29;569(7758):698-702. Epub 2019 May 29.

Computer Science and Artificial Intelligence Laboratory, Massachusetts Institute of Technology, Cambridge, MA, USA.

Humans can feel, weigh and grasp diverse objects, and simultaneously infer their material properties while applying the right amount of force-a challenging set of tasks for a modern robot. Mechanoreceptor networks that provide sensory feedback and enable the dexterity of the human grasp remain difficult to replicate in robots. Whereas computer-vision-based robot grasping strategies have progressed substantially with the abundance of visual data and emerging machine-learning tools, there are as yet no equivalent sensing platforms and large-scale datasets with which to probe the use of the tactile information that humans rely on when grasping objects. Read More

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http://dx.doi.org/10.1038/s41586-019-1234-zDOI Listing
May 2019
18 Reads

Prosthetic Rehabilitation and Vascularized Composite Allotransplantation following Upper Limb Loss.

Plast Reconstr Surg 2019 06;143(6):1688-1701

Ann Arbor, Mich.; and Baltimore, Md. From the Department of Surgery, Section of Plastic and Reconstructive Surgery, and the Department of Biomedical Engineering, University of Michigan; and the Departments of Surgery and Plastic and Reconstructive Surgery, The Johns Hopkins University School of Medicine.

Background: Upper limb loss is a devastating condition with dramatic physical, psychological, financial, and social consequences. Improvements in the fields of prosthetics and vascularized composite allotransplantation have opened exciting new frontiers for treatment and rehabilitation following upper limb loss. Each modality offers a unique set of advantages and limitations with regard to the restoration of hand function following amputation. Read More

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http://dx.doi.org/10.1097/PRS.0000000000005638DOI Listing
June 2019
7 Reads

Implementation of 3D Printing Technology in the Field of Prosthetics: Past, Present, and Future.

Int J Environ Res Public Health 2019 05 10;16(9). Epub 2019 May 10.

Division of Trauma, Critical Care & Acute Care Surgery Department of Surgery, Oregon Health and Science University 3181 SW Sam Jackson Park Rd, Portland, OR 97239, USA.

There is an interesting and long history of prostheses designed for those with upper-limb difference, and yet issues still persist that have not yet been solved. Prosthesis needs for children are particularly complex, due in part to their growth rates. Access to a device can have a significant impact on a child's psychosocial development. Read More

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http://dx.doi.org/10.3390/ijerph16091641DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6540178PMC
May 2019
5 Reads

Extraction of Multi-Labelled Movement Information from the Raw HD-sEMG Image with Time-Domain Depth.

Sci Rep 2019 05 10;9(1):7244. Epub 2019 May 10.

Department of Biomedical Engineering, Faculty of Engineering, Lund University, Lund, Sweden.

In contemporary muscle-computer interfaces for upper limb prosthetics there is often a trade-off between control robustness and range of executable movements. As a very low movement error rate is necessary in practical applications, this often results in a quite severe limitation of controllability; a problem growing ever more salient as the mechanical sophistication of multifunctional myoelectric prostheses continues to improve. A possible remedy for this could come from the use of multi-label machine learning methods, where complex movements can be expressed as the superposition of several simpler movements. Read More

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http://dx.doi.org/10.1038/s41598-019-43676-8DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6510898PMC
May 2019
7 Reads

Assessment of body-powered 3D printed partial finger prostheses: a case study.

3D Print Med 2019 May 2;5(1). Epub 2019 May 2.

Department of Biomechanics, University of Nebraska at Omaha, 6001 Dodge Street Omaha, Nebraska, NE, 68182, USA.

Background: Traditional prosthetic fabrication relies heavily on plaster casting and 3D models for the accurate production of prosthetics to allow patients to begin rehabilitation and participate in daily activities. Recent technological advancements allow for the use of 2D photographs to fabricate individualized prosthetics based on patient anthropometrics. Additive manufacturing (i. Read More

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http://dx.doi.org/10.1186/s41205-019-0044-0DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6743133PMC
May 2019
9 Reads

Non-pharmacological treatment gap preceding surgical consultation in thumb carpometacarpal osteoarthritis - a cross-sectional study.

BMC Musculoskelet Disord 2019 Apr 30;20(1):180. Epub 2019 Apr 30.

Department of Rheumatology, National Advisory Unit on Rehabilitation in Rheumatology, Diakonhjemmet Hospital, PO Box 23, Vinderen, N-0319, Oslo, Norway.

Background: Osteoarthritis (OA) in the thumb carpometacarpal joint (CMCJ) is a prevalent disease which may lead to structural damage, severe pain and functional limitations. Evidence-based treatment recommendations state that all patients with hand OA should be offered non-pharmacological treatment. Surgery should be considered only when other treatment has proven insufficient in relieving pain. Read More

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http://dx.doi.org/10.1186/s12891-019-2567-3DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6492412PMC
April 2019
3 Reads

Evalutation of the perceived quality in the Orthopedics/Traumatology Unit at Carlo Poma Hospital in Mantova.

Acta Biomed 2019 03 28;90(4-S):63-73. Epub 2019 Mar 28.

ASST Carlo Poma Mantova.

The background and the aim of the work: The Department of Orthopedics and Traumatology of the "Carlo Poma" Hospital (Social Territorial Health Authority of Mantova), has pointed out in 2017, through the questionnaires survey over the citizens satisfaction, an appreciation decrease compared to the previous years. The obtained data were not sufficiently explanatory of the reasons for that kind of deterioration and also not enough specific to define possible corrective measures. The aim of this work was to identify the patients' perception regarding the hospitalization phases (from booking to follow up), taking into account five kind of operations and pathologies: 1st knee, shoulder and tibio-talar arthroscopy; 2nd hip and knee prosthesis; 3rd upper limb traumatology; 4th lower limb traumatology and 5th orthogeriatrics. Read More

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http://dx.doi.org/10.23750/abm.v90i4-S.8245DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6625557PMC
March 2019
7 Reads

A narrative review: current upper limb prosthetic options and design.

Disabil Rehabil Assist Technol 2019 Apr 11:1-10. Epub 2019 Apr 11.

a Arm Dynamics , Redondo Beach , CA , USA.

Purpose: This review was conducted to provide an overview of current literature as it relates to upper limb difference, available componentry, and prosthetic options and design. Emerging technologies combined with an increased awareness of the limb difference community have contributed to recent advancements in upper extremity prosthetics.

Methods: A search of five major clinical databases utilizing keywords relating to upper limb prostheses, componenty and limb difference levels resulted in over 1200 articles. Read More

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http://dx.doi.org/10.1080/17483107.2019.1594403DOI Listing
April 2019
10 Reads