Results 21 to 30 of about 556,572 (379)

A lightweight robotic leg prosthesis replicating the biomechanics of the knee, ankle, and toe joint

open access: yesScience Robotics, 2022
Robotic leg prostheses promise to improve the mobility and quality of life of millions of individuals with lower-limb amputations by imitating the biomechanics of the missing biological leg. Unfortunately, existing powered prostheses are much heavier and
M. Tran   +3 more
semanticscholar   +1 more source

An extendable modular endoprosthetic system for bone tumour management in the leg [PDF]

open access: yes, 1990
A modular endoprosthetic system has been developed at the Groningen University Hospital and the University of Twente. The system can bridge a defect resulting from the resection of a malignant bone tumour which has developed around the knee joint of a ...
Grootenboer, H.J.   +7 more
core   +14 more sources

Medium-term Results Evaluation between Gender-Specific x Conventional Total Knee Arthroplasty Prostheses [PDF]

open access: yesRevista Brasileira de Ortopedia, 2020
Objective To compare the postoperative functional result of total knee arthroplasty (TKA) with gender-specific prosthesis versus TKA with conventional prosthesis in a 5-year period.
José Luiz Colleoni   +5 more
doaj   +3 more sources

Online Reinforcement Learning Control for the Personalization of a Robotic Knee Prosthesis

open access: yesIEEE Transactions on Cybernetics, 2020
Robotic prostheses deliver greater function than passive prostheses, but we face the challenge of tuning a large number of control parameters in order to personalize the device for individual amputee users.
Yue Wen   +4 more
semanticscholar   +1 more source

Formation of buckling resistance in a transfemoral prosthesis

open access: yesВестник медицинского института «Реавиз»: Реабилитация, врач и здоровье, 2022
Introduction. The principles of construction of the knee joint in the transfemoral prosthesis are considered. The design of the knee joint in the transfemoral prosthesis with an original mechanism for ensuring buckling resistance in the prosthesis is ...
G. N. Burov   +4 more
doaj   +1 more source

Morphology characters of resected femoral and tibial surface in chinese population: intraoperative anthropometric study in patients at a tertiary hospital

open access: yesBMC Surgery, 2022
Backgrounds Mismatch between knee surface and prosthesis components is related to postoperative complications. Morphological differences between ethnicity and gender may affect prosthesis coverage.
Yiming Xu   +5 more
doaj   +1 more source

The use of the constrained prosthesis in the difficult primary knee arthroplasty [PDF]

open access: yesThe Moldovan Medical Journal, 2021
Background: The constrained knee prosthesis has the basic indication in revision arthroplasty, but the latest literature reveals that it takes place also in primary total knee arthroplasty in cases of knee osteoarthritis associated with major ...
Vitalie Iacubitchii   +2 more
doaj   +1 more source

Treatment of the exposed knee prosthesis [PDF]

open access: yesActa 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

open access: yesCogent 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

Effect of Increasing Assistance From a Powered Prosthesis on Weight-Bearing Symmetry, Effort, and Speed During Stand-Up in Individuals With Above-Knee Amputation

open access: yesIEEE 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
doaj   +1 more source

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