Fabrication of Low-Cost Hip Implant using Direct Metal Laser Sintering Technique 
Mohd Yusof Baharuddin1, Ahmad Hafiz Zulkifly2, Lee Ai Choo3, Siti Noor Azza Aminudin4, Muhammad Hisyam Lee5, Sheikh Hussain Shaikh Salleh6
1Mohd Yusof Baharuddin*, Department of Health Sciences, Faculty of Sports Sciences & Coaching, Universiti Pendidikan Sultan Idris, Tanjong Malim, Perak, Malaysia.
2Ahmad Hafiz Zulkifly, Department of Orthopaedic, Traumatology & Rehabilitation, Kuliyyah of Medicine, Islamic International University Malaysia, Kuantan, Pahang, Malaysia.
3Lee Ai Choo, Department of Health Sciences, Faculty of Sports Sciences & Coaching, Universiti Pendidikan Sultan Idris, Tanjong Malim, Perak, Malaysia.
4Siti Noor Azza Aminudin, Department of Non Chronic Disease, Batu Arang Health Clinic, Ministry of Health, Putrajaya, Malaysia.
5Muhammad Hisyam Lee, Department of Mathematical Sciences, Faculty of Sciences, Universiti Teknologi Malaysia,
6Skudai, Johor, Malaysia. Sheikh Hussain Shaikh Salleh, Center for Biomedical Engineering, Universiti Teknologi Malaysia, Skudai, Johor, Malaysia.
Manuscript received on November 12, 2019. | Revised Manuscript received on November 25, 2019. | Manuscript published on 30 November, 2019. | PP: 4544-4547 | Volume-8 Issue-4, November 2019. | Retrieval Number: D8472118419/2019©BEIESP | DOI: 10.35940/ijrte.D8472.118419
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: 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.
Keywords: Hip Implant, Morphology, Finite Element Analysis, Direct Metal Laser Sintering.
Scope of the Article: Software Engineering Techniques and Production Perspectives.