Clinical workflow for personalized foot pressure ulcer prevention - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Medical Engineering & Physics Année : 2016

Clinical workflow for personalized foot pressure ulcer prevention

Résumé

Foot pressure ulcers are a common complication of diabetes because of patient’s lack of sensitivity due to neuropathy. Deep pressure ulcers appear internally when pressures applied on the foot create high internal strains nearby bony structures. Monitoring tissue strains in persons with diabetes is therefore important for an efficient prevention. We propose to use personalized biomechanical foot models to assess strains within the foot and to determine the risk of ulcer formation. Our workflow generates a foot model adapted to a patient’s morphology by deforming an atlas model to conform it to the contours of segmented medical images of the patient’s foot. Our biomechanical model is composed of rigid bodies for the bones, joined by ligaments and muscles, and a Finite Element mesh representing the soft tissues. Using our registration algorithm to conform three datasets, three new patient models were created. After applying a pressure load below these foot models, the Von Mises equivalent strains and “cluster volumes” (i.e. volumes of contiguous elements with strains above a given threshold) were measured within eight functionally meaningful foot regions. The results show the variability of both location and strain values among the three considered patients. This study also confirms that the anatomy of the foot has an influence on the risk of pressure ulcer.
Fichier principal
Vignette du fichier
MedEngPhys_Bucki_2016.pdf (1.43 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01403955 , version 1 (28-11-2016)

Identifiants

Citer

M. Bucki, V. Luboz, A. Perrier, E. Champion, B. Diot, et al.. Clinical workflow for personalized foot pressure ulcer prevention. Medical Engineering & Physics, 2016, 38 (9), pp.845-853. ⟨10.1016/j.medengphy.2016.04.017⟩. ⟨hal-01403955⟩
1863 Consultations
266 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More