Journal
MATERIALS
Volume 14, Issue 24, Pages -Publisher
MDPI
DOI: 10.3390/ma14247554
Keywords
Tresca stress; metal-on-metal; total hip arthroplasty; normal walking activity
Categories
Funding
- World Class Research UNDIP [118-23/UN7.6.1/PP/2021]
- DIPA of Public Service Agency of Sriwijaya University [2021 SP DIPA-023.17.2.677515/2021]
- Ministry of Education, Culture, Research and Technology (Kemendikbudristek)
- Indonesia Endowment Fund for Education (LPDP) [1059/J5/KM.01.00/2021]
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The study analyzed the Tresca stress of metal-on-metal bearings in total hip arthroplasty with different materials, finding that titanium alloy exhibited the best performance in reducing stress compared to cobalt chromium molybdenum and stainless steel 316L.
The selection of biomaterials for bearing in total hip arthroplasty is very important to avoid various risks of primary postoperative failure for patients. The current investigation attempts to analyze the Tresca stress of metal-on-metal bearings with three different materials, namely, cobalt chromium molybdenum (CoCrMo), stainless steel 316L (SS 316L), and titanium alloy (Ti6Al4V). We used computational simulations using a 2D axisymmetric finite element model to predict Tresca stresses under physiological conditions of the human hip joint during normal walking. The simulation results show that Ti6Al4V-on-Ti6Al4V has the best performance to reduce Tresca stress by 45.76% and 39.15%, respectively, compared to CoCrMo-on-CoCrMo and SS 316L-on-SS 316L.
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