SMART COLLATERAL LIGAMENT BALANCER FOR INTRA- AND POSTOPERATIVE MEDIOLATERAL BALANCE

Shaban Almouahed, Chafiaa Hamitouche, Eric Stindel, Christian Roux

Abstract

The poor ligament balance performed at the time of total knee arthroplasty (TKA) can cause postoperative instability and consequently early loosening of the prosthetic knee. The improper intraoperative assessment of ligamentous balance is due to the use of an accurate surgical instrument which tenses the medial and lateral collateral ligaments in uncontrolled way. A smart ligament balancer is proposed in this paper to assess and perform ligament balancing intra- and postoperatively. A detailed three-dimensional model of the prototype is developed using CAD software in order to discuss the operation of this device. The intraoperative use of this balancer could allow to accurately reestablish a rectangular tibiofemoral gap with symmetric mediolateral load distribution across the whole range of knee flexion. On the other hand, the implanted balancer could be used postoperatively to assess ligamentous balance and to correct it when needed.

References

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Paper Citation


in Harvard Style

Almouahed S., Hamitouche C., Stindel E. and Roux C. (2010). SMART COLLATERAL LIGAMENT BALANCER FOR INTRA- AND POSTOPERATIVE MEDIOLATERAL BALANCE . In Proceedings of the Third International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2010) ISBN 978-989-674-017-7, pages 139-142. DOI: 10.5220/0002757501390142


in Bibtex Style

@conference{biodevices10,
author={Shaban Almouahed and Chafiaa Hamitouche and Eric Stindel and Christian Roux},
title={SMART COLLATERAL LIGAMENT BALANCER FOR INTRA- AND POSTOPERATIVE MEDIOLATERAL BALANCE},
booktitle={Proceedings of the Third International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2010)},
year={2010},
pages={139-142},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002757501390142},
isbn={978-989-674-017-7},
}


in EndNote Style

TY - CONF
JO - Proceedings of the Third International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2010)
TI - SMART COLLATERAL LIGAMENT BALANCER FOR INTRA- AND POSTOPERATIVE MEDIOLATERAL BALANCE
SN - 978-989-674-017-7
AU - Almouahed S.
AU - Hamitouche C.
AU - Stindel E.
AU - Roux C.
PY - 2010
SP - 139
EP - 142
DO - 10.5220/0002757501390142