Biomechanics of Lower Limb Prostheses

Rajťúková, Viktória; Michalíková, Monika; Bednarčíková, Lucia; Balogová, Alena Findrik; Živčák, Jozef

doi:10.1016/j.proeng.2014.12.107

Cited by 30 publications

(17 citation statements)

References 3 publications

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“…Similar to upper limb prosthetics, lower limb prosthetics are designed to replace the function of the missing limb as naturally as possible. Along this line, lower limb amputees require prostheses with stability and a high weight‐bearing capacity that facilitates the transfer of the patient’s weight to the ground . Most often this is done through a tubular structure in the center of the prosthesis.…”

Section: Historic Goals Of Prosthetic Rehabilitationmentioning

confidence: 99%

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Targeted muscle reinnervation and prosthetic rehabilitation after limb loss

Mioton

Dumanian

2018

Journal of Surgical Oncology

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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. Myoelectric prostheses, osseointegration, and targeted muscle reinnervation allow for more intuitive and easy to use devices, reduced pain, and greater quality of life for amputees. K E Y W O R D Samputee, prosthetics, targeted muscle reinnervation (TMR) through an opening in the stump (also known as a stoma) to an external prosthetic limb. Socket based prostheses are no longer needed and the procedure allows for greater stability and control of the prosthesis with a decrease in exerted energy. Targeted muscle reinnervation (TMR) serves as another surgical advancement aimed at improving prosthetic

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Section: Historic Goals Of Prosthetic Rehabilitationmentioning

confidence: 99%

“…In a lower limb amputee, the center of gravity is moved laterally to the healthy limb, making this more difficult. However, with proper prosthetic construction and design, the prosthesis should transfer at least 40% of the individual’s body weight …”

Section: Historic Goals Of Prosthetic Rehabilitationmentioning

confidence: 99%

Targeted muscle reinnervation and prosthetic rehabilitation after limb loss

Mioton

Dumanian

2018

Journal of Surgical Oncology

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“…The strain energy density function for the Mooney-Rivlin model is expressed as the principal stretch function in the form (11):…”

Section: Mooney-rivlin Materials Modelmentioning

confidence: 99%

“…When observing the development of prosthetic technology, it can be seen that for a long time, a significant problem has been the biomechanical compatibility of a lower limb prosthetic with the residual limb -together, these constitute a new appendage after an amputation [11]. The direct contact of the patient's living tissues with the materials used for the comprising the prosthesis remains an important issue with regard to creating optimal solutions.…”

Section: Introductionmentioning

confidence: 99%

The determination of mechanical properties of prosthetic liners through experimental and constitutive modelling approaches

2018

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The aim of the study was the estimation of the ability of hyperelastic material models for the fitting of experimental data obtained in the tensile testing of silicone liners used in lower-limb prosthetics. Three groups of liners were analysed: I-silicone liner, II-part of the liner in which the silicone has a fabric reinforcement, III-silicone liner with an outer covering material. Both longitudinal and circumferential samples were taken. The Neo-Hookean, Mooney-Rivlin and Ogden parameters of constitutive models of hyperelastic materials were calculated.

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“…Below-knee (BK) prosthesis comprises a prosthetic foot, pylon, and TT socket (Figure (1)). [1] The socket is an important part of any prosthetic limb because of its function as the interface between the prosthetic components and the stump. Biomechanical knowledge on the mutual behavior of the stump, socket, and attachment leads to the improvement of prosthetic functions.…”

Section: Introductionmentioning

confidence: 99%

Effects of Ultraviolet Radiation with and Without Heat on the Fatigue Behavior of Below-Knee Prosthetic Sockets

al.,¹

2017

IJMPERD

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This work focused on below-knee (BK) prosthetic sockets, which have gained wide application due to the increasing number of patients with BK amputation as a result of terrorist attacks and life-threatening situations in warstricken areas, such as Iraq. Given the hot weather in Iraq, a number of studies have explored the effects of temperature on specific socket materials. The current study attempts to explain the effects of ultraviolet (UV) radiation, in combination with temperature, on the properties of socket materials. In the experimental work, two sets of specimens, namely, Material A (acrylic resin and hardener reinforced with 10 layers of perlon, and Material B (acrylic resin and hardener reinforced with 8perlon layers and2carbon fibers), were manufactured using a vacuum technique. The socket materials were subjected to tensile testing to obtain their mechanical properties. The failure characteristics of sockets were determined by fatigue testing using a machine (alternating bending fatigue) manufactured specially for this purpose. Fatigue testing was carried out in four different exposure environments (at room temperature with and without UV radiation and at 50 °C with and without UV radiation). Interface pressure between the stump and the socket was measured using an F-socket device. In the numerical study, a prosthetic socket was drawn by using AUTOCAD software. Finite element technique (ANSYS-

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Biomechanics of Lower Limb Prostheses

Cited by 30 publications

References 3 publications

Targeted muscle reinnervation and prosthetic rehabilitation after limb loss

Targeted muscle reinnervation and prosthetic rehabilitation after limb loss

The determination of mechanical properties of prosthetic liners through experimental and constitutive modelling approaches

Effects of Ultraviolet Radiation with and Without Heat on the Fatigue Behavior of Below-Knee Prosthetic Sockets

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