Estimation of Postoperative Knee Flexion at Initial Contact of Cerebral Palsy Children using Neural Networks

Omar A. Galarraga C., Vincent Vigneron, Bernadette Dorizzi, Néjib Khouri, Eric Desailly

Abstract

Cerebral Palsy affects walking and often produces excessive knee flexion at initial contact (KFIC). Hamstring lengthening surgery (HL) is applied to decrease KFIC. The objective of this work is to design a simulator of the effect of HL on KFIC that could be used as a decision-making tool. The postoperative KFIC is estimated given the preoperative gait, physical examination and the type of surgery. Nonlinear data fitting is performed by feedforward neural networks. The mean regression error on test is 9.25 degrees and 63.21% of subjects are estimated within an error range of 10 degrees. The simulator is able to give good estimations independently of the preoperative gait parameters and the type of surgery. This system predicts the outcomes of orthopaedic surgery on CP children with real gait parameters, and not with qualitative characteristics.

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Paper Citation


in Harvard Style

Galarraga C. O., Vigneron V., Dorizzi B., Khouri N. and Desailly E. (2015). Estimation of Postoperative Knee Flexion at Initial Contact of Cerebral Palsy Children using Neural Networks . In Proceedings of the International Conference on Pattern Recognition Applications and Methods - Volume 2: ICPRAM, ISBN 978-989-758-077-2, pages 338-342. DOI: 10.5220/0005286503380342


in Bibtex Style

@conference{icpram15,
author={Omar A. Galarraga C. and Vincent Vigneron and Bernadette Dorizzi and Néjib Khouri and Eric Desailly},
title={Estimation of Postoperative Knee Flexion at Initial Contact of Cerebral Palsy Children using Neural Networks},
booktitle={Proceedings of the International Conference on Pattern Recognition Applications and Methods - Volume 2: ICPRAM,},
year={2015},
pages={338-342},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005286503380342},
isbn={978-989-758-077-2},
}


in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Pattern Recognition Applications and Methods - Volume 2: ICPRAM,
TI - Estimation of Postoperative Knee Flexion at Initial Contact of Cerebral Palsy Children using Neural Networks
SN - 978-989-758-077-2
AU - Galarraga C. O.
AU - Vigneron V.
AU - Dorizzi B.
AU - Khouri N.
AU - Desailly E.
PY - 2015
SP - 338
EP - 342
DO - 10.5220/0005286503380342