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Fabrication of low-cost, cementless femoral stem 316L stainless steel using investment casting technique

Shaikh Salleh, Sheikh Hussain and Baharuddin, Mohd. Yusof (2014) Fabrication of low-cost, cementless femoral stem 316L stainless steel using investment casting technique. Artificial Organs, 38 (7). pp. 603-608. ISSN 0160-564X

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Official URL: https://dx.doi.org/10.1111/aor.12222

Abstract

Total hip arthroplasty is a flourishing orthopedic surgery, generating billions of dollars of revenue. The cost associated with the fabrication of implants has been increasing year by year, and this phenomenon has burdened the patient with extra charges. Consequently, this study will focus on designing an accurate implant via implementing the reverse engineering of three-dimensional morphological study based on a particular population. By using finite element analysis, this study will assist to predict the outcome and could become a useful tool for preclinical testing of newly designed implants. A prototype is then fabricated using 316L stainless steel by applying investment casting techniques that reduce manufacturing cost without jeopardizing implant quality. The finite element analysis showed that the maximum von Mises stress was 66.88MPa proximally with a safety factor of 2.39 against endosteal fracture, and micromotion was 4.73μm, which promotes osseointegration. This method offers a fabrication process of cementless femoral stems with lower cost, subsequently helping patients, particularly those from nondeveloped countries.

Item Type:Article
Uncontrolled Keywords:cementless hip, hip replacement, implant, investment casting
Subjects:Q Science > QH Natural history
Divisions:Biosciences and Medical Engineering
ID Code:52847
Deposited By: Siti Nor Hashidah Zakaria
Deposited On:01 Feb 2016 11:54
Last Modified:04 Jul 2018 19:52

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