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Motion of a mobile bearing knee allowing translation and rotation

Motion of a mobile bearing knee allowing translation and rotation
Motion of a mobile bearing knee allowing translation and rotation
The kinematics of a mobile bearing knee, which allowed ±20° of rotation and 4.5 mm of anteroposterior translation, was measured for ascending and descending a step, deep-knee bend, normal walking, and twisting. A fluoroscopic technique was used, analyzed by 2 different methods. The rotations and displacements during the activities were similar to those of moderate-to-high constrained fixed bearing knees. The motion patterns were variable among test subjects and in general did not reproduce normal knee motion. Because of the freedom of anteroposterior translation and rotation in the design, however, each knee could determine its own neutral position and its own axis of internal-external rotation, depending on the activity.
total knee arthroplasty, mobile bearing knee, knee motion, knee kinematics, fluoroscopy
0883-5403
11-19
Walker, Peter S.
543b66ff-d37e-443d-92ce-f73d95931243
Komistek, Richard D.
bbb53ea3-02d5-43bf-a7fc-03f4f97b6257
Barrett, David S.
cbaaf354-cc75-42d4-980c-0a8797db5b4c
Anderson, Dylan
66eaee7c-f40d-498a-b697-7fb52a1d137b
Dennis, Douglas A.
f900ce6f-faf5-4592-b492-f0275b072fa4
Sampson, Madeleine
e689ac99-ce4d-48d4-af7a-2a19cacb9d09
Walker, Peter S.
543b66ff-d37e-443d-92ce-f73d95931243
Komistek, Richard D.
bbb53ea3-02d5-43bf-a7fc-03f4f97b6257
Barrett, David S.
cbaaf354-cc75-42d4-980c-0a8797db5b4c
Anderson, Dylan
66eaee7c-f40d-498a-b697-7fb52a1d137b
Dennis, Douglas A.
f900ce6f-faf5-4592-b492-f0275b072fa4
Sampson, Madeleine
e689ac99-ce4d-48d4-af7a-2a19cacb9d09

Walker, Peter S., Komistek, Richard D., Barrett, David S., Anderson, Dylan, Dennis, Douglas A. and Sampson, Madeleine (2002) Motion of a mobile bearing knee allowing translation and rotation. Journal of Arthroplasty, 17 (1), 11-19. (doi:10.1054/arth.2002.28731).

Record type: Article

Abstract

The kinematics of a mobile bearing knee, which allowed ±20° of rotation and 4.5 mm of anteroposterior translation, was measured for ascending and descending a step, deep-knee bend, normal walking, and twisting. A fluoroscopic technique was used, analyzed by 2 different methods. The rotations and displacements during the activities were similar to those of moderate-to-high constrained fixed bearing knees. The motion patterns were variable among test subjects and in general did not reproduce normal knee motion. Because of the freedom of anteroposterior translation and rotation in the design, however, each knee could determine its own neutral position and its own axis of internal-external rotation, depending on the activity.

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More information

Published date: 2002
Keywords: total knee arthroplasty, mobile bearing knee, knee motion, knee kinematics, fluoroscopy

Identifiers

Local EPrints ID: 39171
URI: http://eprints.soton.ac.uk/id/eprint/39171
ISSN: 0883-5403
PURE UUID: 00543787-abd6-47e3-a118-09f2e14de2c9

Catalogue record

Date deposited: 21 Jun 2006
Last modified: 15 Mar 2024 08:11

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Contributors

Author: Peter S. Walker
Author: Richard D. Komistek
Author: Dylan Anderson
Author: Douglas A. Dennis
Author: Madeleine Sampson

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