Apparatus for monitoring load bearing rehabilitation exercises of a transfemoral amputee fitted with an osseointegrated fixation: a proof-of-concept study

Gait & Posture
Laurent FrossardMark J Pearcy

Abstract

The purpose of this proof-of-concept study was to determine the relevance of direct measurements to monitor the load applied on the osseointegrated fixation of transfemoral amputees during static load bearing exercises. The objectives were (A) to introduce an apparatus using a three-dimensional load transducer, (B) to present a range of derived information relevant to clinicians, (C) to report on the outcomes of a pilot study and (D) to compare the measurements from the transducer with those from the current method using a weighing scale. One transfemoral amputee fitted with an osseointegrated implant was asked to apply 10 kg, 20 kg, 40 kg and 80 kg on the fixation, using self-monitoring with the weighing scale. The loading was directly measured with a portable kinetic system including a six-channel transducer, external interface circuitry and a laptop. As the load prescribed increased from 10 kg to 80 kg, the forces and moments applied on and around the antero-posterior axis increased by four-fold anteriorly and 14-fold medially, respectively. The forces and moments applied on and around the medio-lateral axis increased by nine-fold laterally and 16-fold from anterior to posterior, respectively. The long axis of the fixation w...Continue Reading

References

Aug 5, 1998·Medical Engineering & Physics·R Brånemark, R Skalak
Jun 22, 2002·Journal of Orthopaedic Science : Official Journal of the Japanese Orthopaedic Association·Paul Stephenson, Bahaa B Seedhom
Nov 3, 2007·Medical Engineering & Physics·Winson C C LeeRickard Brånemark
Sep 2, 2008·Clinical Biomechanics·W Brent EdwardsTimothy R Derrick
Feb 13, 2009·IEEE Transactions on Neural Systems and Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society·Laurent FrossardRichard Branemark

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Citations

May 24, 2011·Journal of Biomechanical Engineering·Melanie L ThompsonChris K Mechefske
Jul 23, 2014·IEEE Transactions on Neural Systems and Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society·Sofie VertriestLaurent Frossard
Jan 4, 2017·Physiotherapy Theory and Practice·Ruud A LeijendekkersJ Bart Staal
Feb 22, 2012·Prosthetics and Orthotics International·Edward Schreiber NeumannJoon S Lee
Mar 8, 2017·JBI Database of Systematic Reviews and Implementation Reports·Sofie VertriestLaurent Frossard
Jul 3, 2015·Prosthetics and Orthotics International·Toshiki KobayashiDavid A Boone
Apr 28, 2016·Prosthetics and Orthotics International·Sofie VertriestLaurent Alain Frossard
Jun 13, 2018·JBI Database of Systematic Reviews and Implementation Reports·Shanthan PatherLaurent Frossard
Sep 13, 2018·Sensors·Sumit GuptaA Drew Barnett

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