Monitoring of the load regime applied on the osseointegrated fixation of a transfemoral amputee : a tool for evidence-based practice
Frossard, Laurent A., Stevenson, Nathan J., Smeathers, James E., Häggström, Eva , Hagberg, Kerstin , Sullivan, John , Ewins, David , Gow, David Lee , Gray, Steven , & Brånemark, Rickard (2008) Monitoring of the load regime applied on the osseointegrated fixation of a transfemoral amputee : a tool for evidence-based practice. Prosthetics and Orthotics International, 32(1), pp. 68-78.
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 transfemoral amputee fitted with an osseointegrated fixation. The specific objectives were to present (1) an apparatus and a procedure allowing recording of the load regime, and (2) 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 five 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 medio-lateral, antero-posterior and the long axes represented 21%, 21% and 120% of the body weight, respectively. The antero-posterior, medio-lateral 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 2,312 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.
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|Item Type:||Journal Article|
|Keywords:||Activities of daily living, force sensor, osseointegration, lower limb amputation, evidence-based practice|
|Subjects:||Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > HUMAN MOVEMENT AND SPORTS SCIENCE (110600)|
Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > OTHER MEDICAL AND HEALTH SCIENCES (119900)
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering|
Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
|Copyright Owner:||Copyright 2008 Taylor & Francis|
|Deposited On:||10 Jun 2009 09:08|
|Last Modified:||29 Feb 2012 23:40|
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