Universiti Teknologi Malaysia Institutional Repository

Fabrication of low-cost hip implant using direct metal laser sintering technique

Baharuddin, M. Y. and Zulkifly, A. Z. and Lee, A. C. and Lee, M. H. and Shaikh Salleh, S. H. (2019) Fabrication of low-cost hip implant using direct metal laser sintering technique. International Journal of Recent Technology and Engineering (IJRTE), 8 (4). ISSN 2277-3878


Official URL: http://dx.doi.org/10.35940/ijrte.D8472.118419


Total hip replacement (THR) is the most popular surgery been performed in orthopedic surgery due to the inclination of musculoskeletal disorder and the aging population worldwide. However, the implant's cost-burdened the patient, especially in the ASEAN region. The main objective of this study was to fabricate the low-cost hip implant using direct laser metal sintering (DMLS). The framework starts with the three dimensional of hip anthropometric datasets from computed tomography scanner, followed with the design of hip implant, computational analysis using finite element, and finally fabrication using DMLS technique. The morphological results demonstrated the value of neck-shaft angle was 130.46º, and the femoral head offset of 30.35 mm. The finite element analysis showed strain distribution was 65 MPa for the implant in metaphyseal region and 110 MPa for intact femur under staircase physiological loading which indicated inhibition of stress shielding at medical calcar region, and micromotion was 4.8 µm which prevent the formation of fibrous tissue and promoting osseointegration between implant-bone interfaces. This study proposed the fabrication using the DMLS technique, which produced accurate implant with low-cost, which suits the ASEAN hip morphology that prolongs implant lifetime.

Item Type:Article
Uncontrolled Keywords:hip implant, morphology, finite element analysis
Subjects:Q Science > QA Mathematics
ID Code:92720
Deposited By: Narimah Nawil
Deposited On:28 Oct 2021 18:10
Last Modified:28 Oct 2021 18:10

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