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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 33 for “"Residual limb"”.
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Effects of a powered ankle prosthesis on shock absorption and residual limb/socket interface pressure
… of further amputations, excessive stress on both limbs, and discomfort at the stump/socket interface. State of the art; passive prostheses have improved many negative consequences associated with lower-limb loss, but we believe the limit of uninformed elastic prostheses has been reached. Further …
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Realization of a Measuring Device for Recordning the Relative Movement between Residual Limb and Prosthetic Socket
Relative motion between residual limb and prosthetic socket is an indication of poor fit. Both the fabrication and fitting processes are highly subjective and a favorable result depends upon the technician's expertise. Although numerous methods exist to measure the relative motion, all have …
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Development of a biomechanical model of the interface between the residual limb and prosthesis for trans-femoral amputees
… to predict the biomechanical behaviour at the residual limb / socket interface for the purpose of obtaining a quantitative evaluation of socket fit. Three dimensional FE models of the residual limb of trans-femoral amputees were generated based on geometrical data obtained using a mechanical …
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Imaging of residual limbs using motion processing with IMUs
Accurate imaging of residual limbs is necessary for the design of well-fitting sockets for prosthesis wearers. Unfortunately, current methods of acquiring residual limb geometry are often expensive and inaccessible. A measurement method is proposed using coordinated IMUs to achieve residual limb …
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Development of a Solution Method to Promote Proper Bandaging Techniques for Transfemoral Amputees
Post-operative care for lower limb amputees focuses on reducing swelling and promoting healing of the residual limb. Healing and desired residual limb maturation is necessary to achieve a conical shape suitable for prosthesis integration. Elastic bandaging is applied to the residual limb to achieve …
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The Design, Development, and Validation of a Residual Limb Evaluation System for the Real-Time Data Mapping of the Trans-Tibial Amputee Socket-Limb Interface for Prosthetic Fitment
… Skin problems are known to occur on the residual limb (RL) of trans-tibial amputees (TTAs). These are induced by an improper prosthetic socket fitment, alignment or component selection. It was identified that there is a lack of RL evaluation systems (RLESs) that are tailored for the …
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The effect of transverse rotation and longitudinal translation between prosthetic components during the gait of unilateral trans-tibial amputees
… considerable forces are transmitted across the residual limb socket interface. These loads and associated gait patterns can be altered by introducing compliant elements into the prosthesis. However, previous studies have failed to adequately describe the effects that components with such …
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A Sensor for Three-Dimensional Limb-to-Prosthesis Interface Motion and Physiological Adaptations from Lower Extremity Prosthesis Use
… changes to the skin and underlying tissue of the residual limb. As prosthesis socket fit is considered one of the most integral elements of increasing the likelihood a user adopts their artificial limb, it is crucial to understand how the limb interacts with the prosthesis at the contact …
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A quantitative fluoroscopic study of the relationship between lumbar inter-vertebral and residual limb/socket kinematics in the coronal plane in adult male unilateral amputees. (Exploring the spine and lower limb kinematics of trans-tibial amputees).
… is thought to be mechanical in origin and lower limb amputees have an increased prevalence. There is also evidence that a large proportion of them also have altered spinal posture and it is commonly thought that the movement between the vertebrae (kinematics) may be affected. The current study …
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Optical Coherence Tomography for the Assessment of Skin Adaptation to Repetitive Mechanical Stress
… problem that affects many individuals with lower limb loss. Breakdown is caused most commonly by repetitive mechanical stresses that are imposed on the residual limb at its interface with the prosthetic socket. Skin can adapt to become more tolerant to these stresses, thus reducing the risk of …
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Fluidic Flexible Matrix Composite Wafers for Volume Management in Prosthetic Sockets
… experience changes in the volume of their residual limb during the course of the day. These changes in volume unavoidably lead to changes in quality of fit of the prosthesis, skin irritations, and soft tissue injuries. The associated pain and discomfort can become debilitating by reducing …
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Advanced prototyping of variable impedance prosthetic sockets for trans-tibial amputees : polyjet matrix 3D printing of comfortable prosthetic sockets using digital anatomical data
… measurements (bone tissue depth) of the human residual limb to the corresponding socket shape and impedance characteristics. The CAD/CAM VIPr socket is compared to a state-of-the-art prosthetic socket of similar internal geometry and shape, designed by a prosthetist using conventional methods. …
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Prosthetic socket design : from a multi-indenter device for in vivo biomechanical tissue measurement to a quasi-passive transtibial socket interface
… importance to the performance of a prosthetic limb system. Conventional prosthetic socket technology is derived using a non-quantitative, artisan methodology. Consequently, a comfortable socket interface cannot be made reproducibly, and persons with limb amputation too often experience …
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COMPENSATORY HIP AND KNEE MECHANICS IN TRANSTIBIAL AMPUTEES DURING STAIR DESCENT AND DIRECTIONAL TASK
<p>This study compared lower limb mechanics in unilateral transtibial amputees and able bodied controls during strenuous activities of daily living (ADL). Seven unilateral transtibial amputee and five matched-abled bodied control participants executed stair descent on a four-step rehabilitation …
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Effect of prosthetic alignment on muscle activity for people with a unilateral transtibial amputation during sit-to-stand, The
People with a lower limb amputation have altered motion strategies during daily tasks compared to people without an amputation. These altered motion strategies can result in the development of secondary conditions, such as residual limb or low back pain, but the underlying muscle activity that …
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Skin strain analysis software for the study of human skin deformation
… bodied human knee and a transtibial amputee's residual limb are presented here as well.
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The effectiveness of Farabloc technology with Mirror Therapy in reducing phantom limb pain in individuals with a unilateral lower extremity vascular amputation
… reorganization, to decrease or eliminate phantom limb pain in vascular amputees. Methods:fourteen older adults with a unilateral vascular amputation participated in the study. Nine individuals started the intervention within 48 hours of surgery and were compared to five individuals who were …
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Modeling and design of perforated prosthetic sockets ARCHM to increase heat transfer of residual limbs
… for over 70% of problems experienced by lower limb amputees in America. Although there have been advances in prosthetics in the active-power knees and ankles, not even cybernetics can improve the comfort of the prosthesis if there is still a socket. The materials in prosthetic sockets are not …
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Function and Pain in Community-Dwelling, Adult Mid-Southerners with Limb Loss
<p><strong>Background:</strong> Limb loss affects about 1 in 190 people in the US. Risk factors for limb loss include diabetes, obesity, smoking, minority race, and poverty, which are all common in the Mid-South population. Function is impaired by limb loss, and pain associated with limb loss may …
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Responsive temperature and pressure sensor design for in-situ prosthesis monitoring applications based on the piezoelectric and pyroelectric effects in lead zirconate titanate
… applications. Knowledge of an amputees' residual limb skin temperature is considered to be of particular importance as an indicator of tissue health. With this in mind, a prototype wearable sensor for real-time temperature measurement at the skin/prosthetic socket/liner interface was …
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