Effect of two different bone cements in thermal necrosis when associated to titanium versus carbon nailing for bone metastases - a numerical study. (14th September 2021)

• Record Type: Journal Article
• Authors: Oliveira, V.C.C.; Fonseca, Elza M.M.; Rua, C.C.; Belinha, J.; Piloto, P.A.G.; Jorge, R.M. Natal
• Is Part Of: International journal of medical engineering and informatics. Volume 13:Number 5(2021)
• Page Start: 386
• Page End: 396
• Publication Date: 2021-09-14
• Subjects: bone cement -- bone metastases -- thermal necrosis -- titanium nail -- carbon nail -- numerical model -- thermal analysis -- computational model -- intramedullary nail -- metastatic lesion; 610.2805
• Languages: English
• ISSNs: 1755-0653

Abstract

The main objective of the paper is to study the thermal effect induced by different bone cements associated with intramedullary nails, titanium and carbon, in bone metastases treatment. The thermal necrosis effect of each cement polymerisation was verified to understand the role of such procedures. Numerical models with nailing systems, introduced in a cortical and spongy bone metastasis, were developed aiming to predict the temperature produced by different types and amount of cement polymerisation. The results showed that the polymerisation heat release in all models with a cement mantle filling in around the intramedullary nail and the necrosis largest area was predicted with CMW3®. It was verified that CF/PEEK nail and high viscosity Palacos R® reduce the heat transfer and the necrosis affected area. This effect could be an advantage for treatment, which aims to keep long-term stability and local metastatic disease control for functional improvement and pain relief.