A stiffness sensor to help in the diagnosis and the surgery of orbital pathologies

Vincent Luboz (1) , Dominique Ambard (2) , Franck Boutault (2) , Pascal Swider (2) , Yohan Payan (3)

1 TIMC-IMAG - Techniques de l'Ingénierie Médicale et de la Complexité - Informatique, Mathématiques et Applications, Grenoble - UMR 5525
2 Laboratoire de biomécanique
3 TIMC-IMAG-GMCAO - Gestes Medico-chirurgicaux Assistés par Ordinateur

Proptosis is characterized by a protrusion of the eyeball due to an increase of the orbital tissue volume. To recover a normal eyeball positioning, the most frequent surgical technique (BROD technique) consists in the osteotomy of orbital walls combined with a loading on the eyeball to initiate tissue decompression. In this paper, a stiffness sensor device is proposed to (1) provide to the surgeon pre, intra and post-operative data concerning the stiffness of the intra-orbital soft tissues, and (2) provide constitutive parameters to the Finite Element model of the intra-orbital tissues already developed by the authors and used to predict consequences orbital surgery.

Mots clés: orbital surgery; stifness sensor; biomechanical model; exophtalmia; proptosis

Domaines: Biomécanique [physics.med-ph]; Biomécanique [physics.med-ph]; Ingénierie biomédicale

Vincent Luboz, Dominique Ambard, Franck Boutault, Pascal Swider, Yohan Payan. A stiffness sensor to help in the diagnosis and the surgery of orbital pathologies. 2005, pp.147-154. ⟨hal-00108504⟩