Towards a patient-specific estimation of intra-operative femoral fracture risk

L. Esposito, P. Bifulco, P. Gargiulo, M.K. Gíslason, M. Cesarelli, L. Iuppariello, H. Jónsson, A. Cutolo and M. Fraldi

Computer Methods in Biomechanics and Biomedical Engineering, 2018, vol. 21, issue 12, 663-672

Abstract: Total Hip Arthroplasty requires pre-surgical evaluation between un-cemented and cemented prostheses. A Patient with intra-operative periprosthetic fracture and another with a successful outcome were recruited, and their finite element models were constructed by processing CT data, assuming elastic-plastic behavior of the bone as function of the local density. To resemble the insertion of the prosthesis into the femur, a fictitious thermal dilatation is applied to the broach volume. Strain-based fracture risk factor is estimated, depicting results in terms of the total mechanical strain expressed using a simple “traffic lights” color code to provide immediate, concise, and intelligible pre-operative information to surgeons.

Date: 2018
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DOI: 10.1080/10255842.2018.1508570

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