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

Baharuddin, Mohd Yusof and Zulkifly, Ahmad Hafiz and Lee, Ai Choo and Aminudin, Siti Noor Azza and Lee, Muhammad Hisyam and Shaikh Salleh, Sheikh Hussein (2019) Fabrication of low-cost hip implant using direct metal laser sintering technique. International Journal of Recent Technology and Engineering (IJRTE), 8 (4). pp. 4544-4547. ISSN 2277-3878

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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 (Journal)
Additional Information: 2397/79330
Uncontrolled Keywords: hip implant, morphology, finite element analysis, direct metal laser sintering
Subjects: R Medicine > RD Surgery > RD701 Orthopedics
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Medicine
Kulliyyah of Medicine > Department of Department of Orthopaedics, Traumatology & Rehabilitation
Depositing User: Puan Mazlina Mansor
Date Deposited: 12 Mar 2020 16:23
Last Modified: 26 Mar 2020 20:05
URI: http://irep.iium.edu.my/id/eprint/79330

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