NDLI: Movement loci of selected points on the femoral head for individual THR patients using three dimensional computer simulation

Content Provider	IEEE Xplore Digital Library
Author	Bennett, D. Orr, J.F. Baker, R.
Copyright Year	2000
Description	Author affiliation: Dept. of Mech. & Manuf. Eng., Queen's Univ., Belfast, UK (Bennett, D.)
Abstract	This study determines the trajectory and distances traversed of specified points on the femoral head For individual total hip replacement (THR) patients and normal subjects. A computer program utilises gait data obtained from 19 THR patients 5 years post-operation and 9 normal subjects to simulate the motion of these points. The loci of the points differed widely in size, shape and direction between subjects. The average sliding distance of the points differed between normal subjects (22.225 mm, range: 18.52-26.88 mm) and THR patients (18.06 mm, range: 10.08-24.41 mm). The loci traced varied between THR patients from thin, longitudinal paths wide to wider, elliptical paths. The average aspect ratio of the loci varied between THR patients from 0.11 to 0.4. Longitudinal wear paths are associated with unidirectional motion, orientation hardening and higher wear resistance. Shorter, longitudinal paths would tend to cause less wear than larger, wider paths which cross a greater number of adjacent paths.
Starting Page	1529
Ending Page	1531
File Size	197085
Page Count	3
File Format	PDF
ISBN	0780364651
ISSN	1094687X
DOI	10.1109/IEMBS.2000.898031
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-07-23
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Hip Computer simulation Computational modeling Implants Performance analysis Shape Polyethylene Joining materials Prosthetics Diagnostic radiography
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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