Monitoring of the load regime applied on the osseointegrated fixation of a trans-femoral amputee: A tool for evidence-based practice

Frossard, Laurent, Stevenson, Nathan, Smeathers, James, Haggstrom, E, Hagberg, Kerstin, Sullivan, John, Ewins, David, Gow, David Lee, Gray, Steven and Branemark, Rickard (2008) Monitoring of the load regime applied on the osseointegrated fixation of a trans-femoral amputee: A tool for evidence-based practice. Prosthetics and Orthotics International, 32 1: 68-78. doi:10.1080/03093640701676319


Author Frossard, Laurent
Stevenson, Nathan
Smeathers, James
Haggstrom, E
Hagberg, Kerstin
Sullivan, John
Ewins, David
Gow, David Lee
Gray, Steven
Branemark, Rickard
Title Monitoring of the load regime applied on the osseointegrated fixation of a trans-femoral amputee: A tool for evidence-based practice
Journal name Prosthetics and Orthotics International   Check publisher's open access policy
ISSN 0309-3646
1746-1553
Publication date 2008-03
Sub-type Article (original research)
DOI 10.1080/03093640701676319
Volume 32
Issue 1
Start page 68
End page 78
Total pages 11
Place of publication London, U.K.
Publisher Sage Publications
Language eng
Abstract This study aimed to provide a description of the continuous recording of the true load regime experienced during daily living by the abutment of a trans-femoral amputee fitted with an osseointegrated fixation. The specific objectives: (i) To present an apparatus and a procedure allowing recording of the load regime, and (ii) an example of the raw data and six performance indicators of the usage of the prosthesis obtained with this method. A subject was monitored for a period of 5 hours as he went about his daily activities. The load regime was directly measured and recorded using a commercial transducer and data logger. The overall load profile presented alternative periods of variable length of inactivity (64%) and activity (36%), respectively. The maximum load applied on the mediolateral, anteroposterior and the long axes represented 21%, 21% and 120% of the body weight, respectively. The anteroposterior, mediolateral and long components of the impulse were 395 kN.s, 359 kN.s and 2,323 kN.s, respectively. The amputee generated a total of 2312 gait cycles of the prosthetic leg, giving an approximate overall cadence of 8 stride/min. Preliminary outcomes indicated that the proposed method was an improvement on the current techniques as it provided the true loading and actual usage of the prosthesis during daily living. This study is a stepping stone in the development of future affordable, on-board and user-friendly load recording systems that can be used in evidence-based practice.
Keyword Activities of daily living
Force sensor
Osseointegration
Lower limb amputation
Evidence-based practice
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Faculty of Health and Behavioural Sciences -- Publications
 
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Created: Thu, 03 Sep 2009, 10:06:45 EST by Mr Andrew Martlew on behalf of Centre for Health Innovation and Solutions