Orthotics and Prosthetics Commons^™

The Impact Of Prosthetics On Amputee Quality Of Life, Courtney Tabor

Liberal Arts Capstones

After someone has a limb amputated, their lifestyle must be rearranged to accommodate for the loss of the limb. This can include adjusting to an inability to do tasks that used to come easily and a drastic reduction in mobility. They may now require assistance with caring for themselves. As a side effect, amputees often experience a significant level of depression and anxiety related to their situation. A selection of literature was analyzed for the physiological, psychological, and sociological effects of losing a limb, and then for the ways in which a prosthetic limb would alleviate some of these issues. …

A Study On The Development Of Robotic Prosthesis, Alexandra Knight

Undergraduate Research Conference

This paper is a multi-analysis study of the development of robotic prosthesis. There are many types of robotic prosthesis, some of which are already in circulation. However, true robotic prosthetics which can move in the exact fashion of the original limb are still in the early stages of prototyping. In experimenting there have been problems found in the methods of communicating movement and the manufacturing of sensory recording material. Using a comparison of the failed and successful experiments it is possibly to approximate the material that will be used and the cost of future market ready robotic prosthesis.

Integration Of A Sensory Driven Model For Hand Grasp Function In 3d Printed Prostheses, Austin T. Hetherington

Senior Theses

My Honors Thesis was completed through the Biomedical Engineering senior design project I worked on. Our project took a mechanically operated 3D printed prosthetic hand and automated the process by which it makes a grasp. The purpose of this project was to provide an affordable, automatic prosthetic hand to those either capable and incapable of wrist flexion. The current 3D printed prosthetic models require users to bend their wrist to initiate a simple grasp. However, our design took an alternative approach by using an EMG sensor placed on the ventral side of the forearm to record muscle activity, which, upon …

Subthreshold Vibration Does Not Affect Walking Performance Of Transtibial Amputees, Charles Sloan

UNO Student Research and Creative Activity Fair

Ian Sloan , Jenny A. Kent, Shane R. Wurdeman, Adam L. Jacobsen, Kota Z. Takahashi, Nicholas Stergiou. Subthreshold vibration does not affect walking performance of transtibial amputees. Objective: To test the hypothesis that adding subthreshold vibrations to the thigh of the affected limb on amputees would allow for better control of the prosthesis. Setting: Biomechanics Research Building at UNO. Participants: 14 transtibial amputees (age range, 33-72y). Intervention: Applying subthreshold vibrations to thigh of affected limb for three different conditions; white noise signal, pink noise signal, and none. Outcome Measures: Step length, step width, and step …

Design And Analysis Of A 3d-Printed, Thermoplastic Elastomer (Tpe) Spring Element For Use In Corrective Hand Orthotics, Kevin Thomas Richardson

Theses and Dissertations--Mechanical and Aerospace Engineering

This thesis proposes an algorithm that determine the geometry of 3D-printed, custom-designed spring element bands made of thermoplastic elastomer (TPE) for use in a wearable orthotic device to aid in the physical therapy of a human hand exhibiting spasticity after stroke. Each finger of the hand is modeled as a mechanical system consisting of a triple-rod pendulum with nonlinear stiffness at each joint and forces applied at the attachment point of each flexor muscle. The system is assumed quasi-static, which leads to a torque balance between the flexor tendons in the hand, joint stiffness and the design force applied to …

Grip Force Control Using Prosthetic And Anatomical Limbs, Michael S. Trujillo, Daniel M. Russell, David I. Anderson, Marilyn Mitchell

Rehabilitation Sciences Faculty Publications

Introduction

Skillful object manipulation in various activities of daily living requires accurate and economical modulation of grip force, yet experimental studies investigating grip force using a prosthesis are lacking. The purpose of this study was to compare grip force output between two types of upper-limb prosthetic prehensors. We hypothesized a relationship between grip force output and the muscular tension needed to control the prehensor.

Materials and Methods

Ten able-bodied participants attempted to produce a static target grip force using a voluntary opening and voluntary closing prosthetic simulator and their anatomical hand. The target forces were 0.49 N, 4 N, and …

The Effects Of Emerging Technology On Healthcare And The Difficulties Of Integration, Skyler J. Pavlish-Carpenter

Honors Undergraduate Theses

Background: Disruptive technology describes technology that is significantly more advanced than previous iterations, such as: 3D printing, genetic manipulation, stem cell research, innovative surgical procedures, and computer-based charting software. These technologies often require extensive overhauls to implement into older systems and must overcome many difficult financial and societal complications before they can be widely used. In a field like healthcare that makes frequent advancements, these difficulties can mean that the technology will not be utilized to its full potential or implemented at all.

Objective: To determine the inhibiting factors that prevent disruptive technology from being implemented in conventional healthcare.

Methods: …

A Breast Prosthesis Infection Update: Two-Year Incidence, Risk Factors And Management At Single Institution, Ashley Nadia Boustany, Shady Elmaraghi, Nneamaka Agochukwu, Benjamin Cloyd, Adam J. Dugan, Brian Rinker

Surgery Faculty Publications

Background: Infection following augmentation and prosthetic-based breast reconstruction can cause significant physical and psychological distress for patients. It may delay adjuvant therapies and compromise aesthetic outcomes. The aim of this study is to identify modifiable risk factors for infection and identify common bacterial isolates to achieve optimal outcomes for patients.

Methods: A retrospective cohort study was performed for patients undergoing implant-based breast reconstruction over a 2-year period. In each case, we documented demographics, co-morbidities, complications and antibiotic use. We reviewed treatments, infectious species cultured where applicable and all outcomes.

Results: A total of 292 patients met the inclusion criteria. Fifty-five …

System For Powered Ankle-Foot Prosthesis With Active Control Of Dorsiflexion-Plantarflexion And Inversion-Eversion, Mo Rastgaar, Evandro Ficanha, Kenton Kaufman

Michigan Tech Patents

A system and method for operating a prosthesis is provided. The system includes a socket configured to engage a residual limb of a subject and a shaft having a first end connected to the socket and an opposing second end. The system also includes a foot piece connected to the second end of the shaft. The foot piece includes an ankle plate and a sole piece configured to contact a surface. The system also includes at least one computer configured to detect a state of the foot piece and to transmit an indication of the state of the foot. The …

Occupational Therapy Treatment Of Distal Radius Fractures: Best Practices, Erika Schleis

Honors Theses

This paper describes information on best practices for occupational therapy treatment of distal radius fractures including current information about etiology, incidence and prevalence, diagnostic criteria, comorbidities, associated client factors involved in this injury and the effects of this condition on occupational performance. Two hypothetical case studies are presented using evidence-based treatment information. Discussion of additional research necessary to continue to determine best practice approaches is presented.

Rehabilitation Of An Injured Golden Eagle (Aquila Chrysaetos): A Case Study, Fida Muhammad Khan, Fakhar-I- Abbas, Abu Ul Hassan Faiz

Journal of Bioresource Management

Habitat destruction and anthropogenic activities cause wild birds to migrate towards urban areas in search of food and sometimes nesting in high-roof buildings, where they are caught by local people using different techniques and are further used for hunting or recreational purposes. An injured Golden Eagle (Aquila chrysaetos) was found entangled in bushes near the vicinity of Balkasar Research Complex, Chakwal, Pakistan. After complete physical examination, a wound on the right wing and closed leg fracture was diagnosed. The successful treatment was done by anti-parasitic and anti-bacterial drugs with careful monitoring. Splint was adjusted after aligning the fractured …

The Effect Of Three Different Ankle Braces On Vertical Jump Performance In Female College Volleyball Players, Ashley M. Jefferson

Undergraduate Theses

Background/Purpose: Ankle braces are often used to stabilize the ankle joint of an athlete to reduce the risk of initial injury while participating in athletic activity or to protect the joint from re-injury when returning to play. The purpose of this study was to examine the effects of application of three different braces on vertical jump performance in collegiate female volleyball players. A secondary aim was to compare participant preference and satisfaction on selected characteristics of each of the three different braces.

Subjects: 31 female varsity/club college volleyball players >18 years of age.

Materials/Methods: Health History Assessment and a dynamic …

Factors Influencing Distribution Of Prosthetic Devices In Iran: An Economic Analysis, Sarah Tensen

Virginias Collegiate Honors Council Conference

An estimated 177,622 Iranians have suffered an injury resulting in amputation. Prosthetic devices in Iran are scarce due to wealth disparity, wars, and lack of vital resources. Without prosthetic devices, amputees face unemployment, homelessness, a lowered self-esteem and cannot fully participate in society. I examined economic factors influencing the distribution of prosthetic devices and reviewed articles that focus on healthcare costs, distributions and services, relationships between Iran and other countries, etiology of amputation to find a solution for the prosthetic distribution issues. I concluded issues resulted from high costs, unequal distributions of wealth and resources, unsafe conditions, and a deficit …

Upper Limb Prosthesis: A Functional Replacement For The Biological Limb?, Ari Schacter

The Science Journal of the Lander College of Arts and Sciences

The 21st century continues to produce major advancements in prosthetic limb technology. Specifically, improvements to the myo-electric prosthesis have helped numerous upper limb amputees, especially transhumeral patients. Targeted muscle reinnervation surgery has allowed for more seamless control of the prosthetic device by creating new control centers for the unused nerves of the residual arm. Additionally, improvements in pattern recognition technology have enabled transhumeral amputees to gain more natural control of the prosthesis and consequently better imitate a biological limb. Another important development is in regards to the configuration and placement of electromyography electrodes on the amputee’s body. Using high-density electrodes …

Examination Of The Rehabilitation Protocol Of Traumatic Transfemoral Amputees And How To Prevent Bone Mineral Density Loss, Emily R. Jenkinson

Honors Undergraduate Theses

The purpose of this literature review was to identify any adaptations that could be made to the rehabilitation process for Traumatic Transfemoral Amputees. Traumatic Transfemoral Amputation is particularly debilitating with the amputees encountering many obstacles throughout the rehabilitation process. These obstacles can prevent the return to pre-morbid functioning. With an ever-increasing number of amputees within the United States, it is imperative the rehabilitation process be addressed. This literature review addresses possible adjustments in the initial stages of rehabilitation examining the post-operative, pre-prosthetic, and prosthetic rehabilitation stage to enhance the physical functioning for the amputee. This comprehensive literature review encompassing 63 …

The Effects Of Orthotics And Increased Plantar Sole Mechanoreceptor Activation On Turning Performance In Individuals With Parkinson’S Disease, Kelly A. Robb

Theses and Dissertations (Comprehensive)

Locomotion and turning are complex movement patterns essential to activities of daily living. Individuals with Parkinson’s disease (PD) report difficulties turning, often coupled with impaired balance and increased fear of falling. The purpose of this within-subject study was to determine if orthotics, with and without a textured top cover, can improve gait stability and turning performance within Parkinson’s participants. Seven participants with a diagnosis of idiopathic Parkinson’s disease, aged 55-80 years old, participated in the study. Participants completed three testing sessions; baseline, 4 weeks post-baseline, and 5 weeks post-baseline. The ‘footwear only’ and ‘footwear + non-textured orthotic’ conditions were tested …

The Effect Of A Powered Ankle Foot Orthosis On Walking In A Stroke Subject: A Case Study, Ali Pourghasem, Ismail Ebrahimi Takamjani, Mohammad Taghi Karimi, Mohammad Kamali, Mohammad Jannesari, Iman Salafian

Department of Mechanical and Materials Engineering: Faculty Publications

[Purpose] Standing and walking are impaired in stroke patients. Therefore, assisted devices are required to restore their walking abilities. The ankle foot orthosis with an external powered source is a new type of orthosis. The aim of this study was to evaluate the performance of a powered ankle foot orthosis compared with unpowered orthoses in a stroke patient.

[Subjects and Methods] A single stroke subject participated in this study. The subject was fitted with three types of ankle foot orthosis (powered, posterior leg spring, and carbon ankle foot orthoses). He was asked to walk with and without the three types …

Letter To The Editor Regarding “Clinical Effectiveness And Safety Of Powered Exoskeleton-Assisted Walking In Patients With Spinal Cord Injury: Systematic Review With Meta-Analysis”, Marcel P. Dijkers, Katherine G. Akers, Sujay S. Galen, Diane E. Patzer, Phuong T. Vu

Library Scholarly Publications

No abstract provided.

Predicting Walking Ability And Prosthetic Candidacy Following Lower Extremity Amputation: Systematic Review, Treatment Pathway And Algorithm, Scott Love

Student Dissertations

Purpose: The purpose of this study is a systematic review (SR) of existing literature to examine characteristics of persons with amputation which predict walking ability and prosthetic candidacy following lower extremity amputation (LEA). The identification, synthesis and summary of this evidence could assist in developing clinical practice guidelines, including a physical rehabilitation treatment pathway and a clinical algorithm. The importance of this project is the establishment to further develop evidence based LEA clinical practice guidelines. This evidence will assist the healthcare team in decision making, specifically considering evidence and patient-centric predictive characteristics.

Background: Currently, there is no multi-disciplinary physical …

Self-Perceptions Of Disability And Impairment In An Indian Prosthetic Population Using Jaipur Foot Technology, Litany Esguerra

Independent Study Project (ISP) Collection

Twenty-nine first time and repeat prosthetic users were interviewed over a period of three weeks to determine how they perceived their own disability at Bhagwan Mahaveer Viklang Sahayata Samiti, or Jaipur Foot, located in Jaipur, India. The questions delineated different aspects of people’s disabilities and impairment, and asked a multitude of questions regarding social, economic, political, and other contexts, influenced by the conceptual framework of the International Classification of Functioning (ICF). The study analyzed all of the factors as specified by the questionnaire and found that many varying trends over all types of prosthetic users. The study also used the …

Assistive Technology Accessibility And Abandonment: Challenges For Occupational Therapists, Daniel Mc Cruz, Maria Luisa G. Emmel, Mariana G. Manzini, Paulo V. Braga Mendes

The Open Journal of Occupational Therapy

No abstract provided.

A Pilot Investigation Of The Effect Of Postural Control Strategies And Balance In Children With Unilateral Lower-Limb Amputation, Mark Geil

Faculty Articles

No abstract provided.

Helmet Therapy Vs. Conservative Therapy For The Treatment Of Positional Skull Deformations, Whitney Thompson

Physician Assistant Scholarly Project Posters

• Plagiocephaly and brachycephaly are skull deformations that occur in nearly half of all infants. These deformities are present at birth or can develop shortly after birth due to head positioning while lying supine. Depending on the severity of the deformity, infants may develop negative long-term developmental outcomes. There are generally two ways to treat such patients; repositioning or with use of orthotics (helmet therapy).

• A study of systematic reviews and cohort studies was completed to determine if orthotics (helmet) therapy is significantly more effective than repositioning therapy.

• The study indicated that infants diagnosed with moderate to severe …

3d Organ Printing, Chana Sirota

The Science Journal of the Lander College of Arts and Sciences

The global shortage of donor organs is a cause for countless fatalities across the world. Although, diseases can be treated through organ transplantation it can come along with many complications. Not only is there a high demand for donor organs, there is also the risk of the body’s rejection of the newly implanted organ. Through the method of 3D printing organs, many lives could be saved as well as reducing the need for donor organs. Finding materials to create a suitable scaffold is the focus of many experiments. Materials that are used in organ printing are made from soft materials, …

A New Technique To Improve The Operation Of Prosthetic Limbs During Muscle Fatigue, H. Albunashee, G. Rasool, K. Iqbal, G. White

Journal of the Arkansas Academy of Science

Prosthetic limbs hold a promise to renew the quality of life for the amputee. Neural commands are decoded via a classifier to generate control signals for the prosthetic devices. In the literature, many challenges and limitations have been identified that affect the prosthesis operation. One such drawback is muscle fatigue which degrades the surface electromyogram (sEMG) signals, and consequently, the performance of the deployed classification algorithm declines from 90% to 50% of average accuracy. We used a new technique using the Linear Discrimination Analysis (LDA) algorithm and the muscle synergy-based task discrimination (MSD) algorithm to improve the classification accuracy. In …

The Advances In Prosthetics, Jose Garcia

Symposium Of University Research and Creative Expression (SOURCE)

Throughout time, many people have been able to build, create, and do amazing things with their arms and legs. However, those who have lost limbs at birth or through an event in their life sometimes have a harder time being as accomplished as others. While some people without limbs have had a harder life, some have been able to accomplish what others with a normal physiology can by the use of prosthetics. This presentation will focus on the advances of prosthetics, the benefits for the user, and their future development. The main focus will be on prosthetic arms and their …

Postcolonial Disability In Mohesen Makhmalbaf’S Kandahar, Sukshma Vedere

Ray Browne Conference on Cultural and Critical Studies (2015-2021)

Kandahar (2001), an Iranian film directed by Mohsen Makhmalbaf, details the journey of the protagonist, Nafas, to Kandahar to save her sister from committing suicide on the day of the solar eclipse. The film has gained recent attention by disability studies scholars for the representation of disability in Afghanistan; scholars have discussed the significance of prosthetics and international aid for the disabled in post-war zones of the Third World, but little has been said about disability as a postcolonial embodiment. I argue that Kandahar represents the postcolonial state as a disabled space both literally and metaphorically. It projects the veil …

Designing Electronics For An Artificial Leg, Taylor Barto

The Downtown Review: An Interdisciplinary Journal Written and Peer-Reviewed by Mandel Honors College Students at Cleveland State University

A regenerative prosthesis is modeled and simulated. The simulation is optimized with the biogeography-based optimization algorithm to obtain desired knee angle tracking with a reference knee trajectory and to regenerate energy. The prosthesis is able to track a reference knee angle with a 5.1 degree error averaged over an entire stride and regenerate some energy throughout the stride.

Low-Cost Strider For Guatemala, Nicole Catherine Cooper, Gonzalo Hernandez, Jared W. Tower

Mechanical Engineering

The purpose of this project was to create a strider, a type of standing rehabilitation device, for children in developing countries who have trouble walking and supporting their full body weight. The project was initially brought to us by Cal Poly professor Brian Self, who had visited a clinic in San Marcos and determined that there were children there who had difficulties with walking and were a need for a rehabilitation device. The team discussed the problem with Dr. Self, Matt Robinson (a local San Luis Obispo prosthetist), and Cal Poly physics professor Pete Schwartz, all of whom had visited …

Biomechanical Analysis Of Gait Kinetics Resulting From Use Of A Vacuum Socket On A Transtibial Prosthesis, Maria De Lourdes Ramos Gonzalez

Honors College Theses

The technology and design of lower limb prosthetics have evolved greatly since their introduction. The current study proposed to compare the effects of a conventional pin socket attachment and a vacuum socket attachment for a transtibial amputee. Whereas traditional measurements of gait utilize force plates and camera systems, this study made use of a small tri-axial load cell located at the base of the socket to measure the forces and moments exerted during a regular gait cycle. The hypothesis tested stated that a vacuum pump socket attachment, when compared to a non-vacuum (pin) socket, will have a significant effect on …