Design process of low cost uncemented femoral stem 316L stainless steel using investment casting technique
Total hip replacement (THR) is a flourishing orthopaedic surgery which is generating billion 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...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Trans Tech Publications, Switzerland
2016
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/49240/ http://irep.iium.edu.my/49240/ http://irep.iium.edu.my/49240/ http://irep.iium.edu.my/49240/1/design_process_of_low_cost_uncemented_femoral_stem_316L_stainle.pdf |
| Summary: | Total hip replacement (THR) is a flourishing orthopaedic surgery which is generating
billion 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
the finite element analysis, this study will assist to predict the outcome and could become a useful
tool for pre-clinical testing of newly designed implant. A prototype is then fabricated using 316L
stainless steel by applying investment casting techniques which reduce manufacturing cost without
jeopardizing the implant’s quality. The finite element analysis showed the maximum von Mises
stress was 66.88 MPa proximally with a safety factor of 2.39 against endosteal fracture, and
micromotion was 4.73 μm which promotes osseointegration. This method offers a fabrication
process of cementless femoral stems with lower cost, subsequently helping patients, particularly
those from non-developed countries. |
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