A photoelastic clinical study of the static load distributionat the stump/socket interface of PTB sockets

2005 ◽  
Vol 29 (3) ◽  
pp. 291-302 ◽  
Author(s):  
P. Sewell ◽  
J. Vinney ◽  
S. Noroozi ◽  
R. Amali ◽  
S. Andrews
Keyword(s):  
Clinical Study ◽  
Static Load ◽  
Socket Interface

Piezoresistive Polymer-Based Materials for Real-Time Assessment of the Stump/Socket Interface Pressure in Lower Limb Amputees

2017 ◽  
Vol 17 (7) ◽  
pp. 2182-2190 ◽  
Author(s):  
Armando Ferreira ◽  
Vitor Correia ◽  
Emilia Mendes ◽  
Claudia Lopes ◽  
Jose Filipe Vilela Vaz ◽  
...  
Keyword(s):  
Real Time ◽  
Lower Limb ◽  
Interface Pressure ◽  
Socket Interface ◽  
Lower Limb Amputees ◽  
Time Assessment

Effect of transfemoral prosthetic socket interface design on gait, balance, mobility, and preference

2021 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Jason T. Kahle ◽  
Rebecca M. Miro ◽  
Loi T. Ho ◽  
Michael R. Porter ◽  
Derek J. Lura ◽  
...  
Keyword(s):  
Interface Design ◽  
Prosthetic Socket ◽  
Socket Interface

scholarly journals Key considerations for finite element modelling of the residuum–prosthetic socket interface

2020 ◽  
pp. 030936462096778
Author(s):  
JW Steer ◽  
PR Worsley ◽  
M Browne ◽  
Alex Dickinson
Keyword(s):  
Finite Element ◽  
Soft Tissue ◽  
Finite Element Modelling ◽  
Soft Tissues ◽  
Shear Stresses ◽  
Material Models ◽  
Element Modelling ◽  
Prosthetic Socket ◽  
Highly Nonlinear ◽  
Socket Interface

Background: Finite element modelling has long been proposed to support prosthetic socket design. However, there is minimal detail in the literature to inform practice in developing and interpreting these complex, highly nonlinear models. Objectives: To identify best practice recommendations for finite element modelling of lower limb prosthetics, considering key modelling approaches and inputs. Study design: Computational modelling. Methods: This study developed a parametric finite element model using magnetic resonance imaging data from a person with transtibial amputation. Comparative analyses were performed considering socket loading methods, socket–residuum interface parameters and soft tissue material models from the literature, to quantify their effect on the residuum’s biomechanical response to a range of parameterised socket designs. Results: These variables had a marked impact on the finite element model’s predictions for limb–socket interface pressure and soft tissue shear distribution. Conclusions: All modelling decisions should be justified biomechanically and clinically. In order to represent the prosthetic loading scenario in silico, researchers should (1) consider the effects of donning and interface friction to capture the generated soft tissue shear stresses, (2) use representative stiffness hyperelastic material models for soft tissues when using strain to predict injury and (3) interrogate models comparatively, against a clinically-used control.

Gait Analysis and Tissue-Socket Interface Pressures in Above-Knee Amputees

1972 ◽  
Vol 65 (10) ◽  
pp. 1197-1207 ◽  
Author(s):  
LEWIS A. LEAVITT ◽  
EFRAIN N. ZUNIGA ◽  
JON C. CALVERT ◽  
JOSEPH CANZONERI ◽  
CHARLES R. PETERSON
Keyword(s):  
Gait Analysis ◽  
Interface Pressures ◽  
Socket Interface

Triaxial force transducer for investigating stresses at the stump/socket interface

1992 ◽  
Vol 30 (1) ◽  
pp. 89-96 ◽  
Author(s):  
R. B. Williams ◽  
D. Porter ◽  
V. C. Roberts ◽  
J. F. Regan
Keyword(s):  
Force Transducer ◽  
Socket Interface

scholarly journals Effects of alignment variables on thigh axial torque during swing phase in AK amputee gait

1983 ◽  
Vol 7 (1) ◽  
pp. 41-47 ◽  
Author(s):  
G. Ishai ◽  
A. Bar ◽  
Z. Susak
Keyword(s):  
Stance Phase ◽  
Optimization Procedure ◽  
Swing Phase ◽  
Clinical Tool ◽  
Factors Associated ◽  
Optimum Choice ◽  
And Performance ◽  
Socket Interface ◽  
Amputee Gait

It is suggested that a major source of discomfort for above-knee amputees during the swing phase of walking, is the thigh axial torque (TAT) transferred at the stump-socket interface. The relation between TAT and variations in its six relevant alignment adjustments, has been investigated. A computerized routine has been established which indicates optimum choice of alignment setting, based on minimal TAT peaks. Feasibility for attenuating swing phase TAT has been demonstrated in three simulated patterns of amputee gait. As a conclusion, it is suggested that a useful clinical tool could be based on the presented alignment optimization procedure and may be expanded to include other factors associated with swing and stance phase comfort and performance.

Sign in / Sign up

Export Citation Format

Share Document