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IEEE Transactions on Neural Systems and Rehabilitation Engineering, 2023 After above-knee amputation, the missing biological knee and ankle are commonly replaced with a passive prosthesis, which cannot provide net-positive energy to assist the user.
Grace R. Hunt +3 more
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Treatment of the exposed knee prosthesis [PDF]
Acta Orthopaedica Scandinavica, 1987 Ten knees with early tissue breakdown after knee arthroplasty resulting in exposed prostheses were treated with different plastic surgical techniques. Six knees were successfully covered: four using a gastrocnemius musculocutaneous flap, one using a fasciocutaneous flap, and one using split-skin grafts. Four knees failed: two using local skin flaps and
Lars Lidgren +4 more
openaire +3 more sources
An investigation into a locking mechanism designed for a gear-based knee joint prosthesis
Cogent Engineering, 2020 Background: The knee-locking mechanism in an above-knee prosthesis is crucially important to protect the prosthesis user from sudden falling down due to unexpected disturbance while standing upright.
C. X. Tong, M. S. H. Bhuiyan
doaj +1 more source
Robotic Knee Tracking Control to Mimic the Intact Human Knee Profile Based on Actor-critic Reinforcement Learning [PDF]
, 2021 We address a state-of-the-art reinforcement learning (RL) control approach to automatically configure robotic prosthesis impedance parameters to enable end-to-end, continuous locomotion intended for transfemoral amputee subjects. Specifically, our actor-critic based RL provides tracking control of a robotic knee prosthesis to mimic the intact knee ...
arxiv +1 more source
Virtual Testing Method of Human Knee Prosthesis
International Journal of Engineering and Management Sciences, 2019 In the human knee joint, a degenerative wear of the joint can be formed, the common treatment of this disease is the total knee prosthesis geometry replacement and prosthesis implanting, the aim of our research is the study of the human knee joint with ...
Zehouani Kheireddine, István Oldal
doaj +1 more source
Journal of International Medical Research, 2020 Objective To compare the knee shape and bone parameters between knee prosthesis products from overseas companies and a Chinese patient’s knee, and to apply the anatomical basis for Chinese knee prosthesis design.
Ajimu Keremu +4 more
doaj +1 more source
Effects of Prosthesis Mass on Hip Energetics, Prosthetic Knee Torque, and Prosthetic Knee Stiffness and Damping Parameters Required for Transfemoral Amputees to Walk With Normative Kinematics [PDF]
, 2014 We quantify how the hip energetics and knee torque required for an above-knee prosthesis user to walk with the kinematics of able-bodied humans vary with the inertial properties of the prosthesis. We also select and optimize passive mechanical components
Narang, Yashraj Shyam, Winter, Amos
core +1 more source
Orthopaedics & Traumatology: Surgery & Research, 2014 Early and late results of the GUEPAR hinge knee prosthesis were evaluated on a series of 184 operations performed before January 1st, 1974. There were 3 immediate deaths and 26 before 5 years. Nineteen prostheses were removed. One hundred and twenty-six knees had degenerative osteoarthritis, 52 rheumatoid arthritis.
J.-H. Aubriot, J.-P. Genet, A. Deburge
openaire +3 more sources
Kinematic Analysis of a Posterior-stabilized Knee Prosthesis
Chinese Medical Journal, 2015 Background: The goal of total knee arthroplasty (TKA) is to restore knee kinematics. Knee prosthesis design plays a very important role in successful restoration.
Zhi-Xin Zhao +5 more
doaj +1 more source
Modeling and Control of Knee-Ankle-Toe Active Transfemoral Prosthesis
IEEE Access, 2020 The main joints of lower limb are hip, knee, ankle, and toe. Because of accidents or diseases, some people have to amputate. Wearing prosthesis can help them return to normal life.
Yawei Chen +4 more
doaj +1 more source