Knee kinetics in trans-tibial amputee gait

Powers, Christopher M.; Rao, Sreesha; Perry, Jacquelin

doi:10.1016/s0966-6362(98)00016-2

Cited by 103 publications

(109 citation statements)

References 15 publications

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“…The three loading conditions caused extension of the monolimb relative to the residual limb. The extension moment is consistent with previous gait study showing that transtibial amputees demonstrated an external knee extension moment almost throughout the stance phase of the gait because they tended to move the body center of mass more anteriorly [27]. Because of the extension moment of monolimb and the inward budge of the patellar bar, the stresses are greater in the patellar tendon region than in the popliteal depression region.…”

Section: Resultssupporting

confidence: 90%

Finite-element analysis to determine effect of monolimb flexibility on structural strength and interaction between residual limb and prosthetic socket

Lee

Zhang

Boone³

et al. 2004

JRRD

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Abstract-Monolimb refers to a kind of transtibial prostheses having the socket and shank molded into one piece of thermoplastic material. One of its characteristics is that the shank is made of a material that can deform during walking, which can simulate ankle joint motion to some extent. Changes in shank geometry can alter the stress distribution within the monolimb and at the residual limb-socket interface and, respectively, affect the deformability and structural integrity of the prosthesis and comfort perceived by amputees. This paper describes the development of a finite-element model for the study of the structural behavior of monolimbs with different shank designs and the interaction between the limb and socket during walking. The von Mises stress distributions in monolimbs with different shank designs at different walking phases are reported. With the use of distortion energy theory, possible failure was predicted. The effect of the stiffness of the monolimb shanks on the stress distribution at the limb-socket interface was studied. The results show a trend-the peak stress applied to the limb was lowered as the shank stiffness decreased. This information is useful for future monolimb optimization.

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Section: Resultssupporting

confidence: 90%

Finite-element analysis to determine effect of monolimb flexibility on structural strength and interaction between residual limb and prosthetic socket

Lee

Zhang

Boone³

et al. 2004

JRRD

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show abstract

“…Previous reports of joint kinetics during the swing phase of walking have shown small differences (~20%) between the intact and amputated limbs (Ferris et al, 2012;Powers et al, 1998). This study has shown that when the inertial properties of the limb are adjusted using the GENERAL model, the differences between the INTACT and GENERAL methods is nearly 50% during swing phase.…”

Section: Discussionmentioning

confidence: 55%

A general model for estimating lower extremity inertial properties of individuals with transtibial amputation

Ferris

Smith

Heise

et al. 2017

Journal of Biomechanics

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“…16,[56][57][58]65,66,72,79,97,103,106,110 . Five studies described work, and 9 studies described power.…”

Section: Description Of Studies Of Tt Amputationmentioning

confidence: 99%

“…57,72,97,106 Methodologic quality ranged from 12 72 to 15. 97 Only the results of 2 studies regarding the K4 phase could be pooled.…”

Section: Joint Power Amputated-referent Legsmentioning

confidence: 99%

“…57,72,97,106 Methodologic quality ranged from 12 72 to 15. 97 Only the results of 2 studies regarding the K4 phase could be pooled. 57,72 The other studies could not be pooled because the study RESULTS of Centomo et al 106 failed to report numeric data, and the trial of Powers et al 97 failed to report a standard deviation.…”

Section: Joint Power Amputated-referent Legsmentioning

confidence: 99%

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Adapting to change : influence if a microprocessor-controlled prosthetic knee on gait adaptations

Prinsen¹

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Knee kinetics in trans-tibial amputee gait

Cited by 103 publications

References 15 publications

Finite-element analysis to determine effect of monolimb flexibility on structural strength and interaction between residual limb and prosthetic socket

Finite-element analysis to determine effect of monolimb flexibility on structural strength and interaction between residual limb and prosthetic socket

A general model for estimating lower extremity inertial properties of individuals with transtibial amputation

Adapting to change : influence if a microprocessor-controlled prosthetic knee on gait adaptations

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