Universiti Teknologi Malaysia Institutional Repository

Finite element study of metacarpophalangeal joint silicone implants

Abdul Kadir, Mohammed Rafiq and Kamsah, N. and Aminullah, M. A. (2008) Finite element study of metacarpophalangeal joint silicone implants. In: IFMBE Proceedings. Springer Berlin Heidelberg, pp. 420-423. ISBN 1680-0737

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Abstract

Surgical treatment of diseased Metacarpophalangeal joint normally use silicone-based prosthesis as joint replacement. Even though mobility is restored to the joint, there have been reports of complications associated with implant instability and wear. In this study, two commercially available silicone prostheses for metacarpophalangeal joint replacement — the Swanson and the Neuflex — were reconstructed and analysed using three dimensional finite element analysis. Computed tomography dataset of the middle finger was used to construct the joint and a load was applied to the proximal interphalangeal joint to simulate flexion. An inhouse experimentally validated algorithm was used to calculate and display interface micromotion between the implant and the bone. Results showed high stress field at the hinge of both implants, with pistoning behaviour of the stems relative to the bone canals. The Neuflex prosthesis had larger stress magnitudes at the hinge, and flexed more than the Swanson for the same magnitude of flexion load. Due to the flexibility of the Neuflex, the pistoning behaviour during flexion was less than the Swanson.

Item Type:Book Section
Additional Information:Part 3 - Finite Element Study of Metacarpophalangeal Joint Silicone Implants, pp. 420-423,(Mohammed Rafiq Abdul Kadir, N. Kamsah and M. A. Aminullah, Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Malaysia)
Uncontrolled Keywords:metacarpophalangeal joint, silicone implants, micromotion, finite element
Subjects:T Technology > TJ Mechanical engineering and machinery
Divisions:Mechanical Engineering
ID Code:6956
Deposited By: Mohamad Ali Duki
Deposited On:15 Dec 2008 07:17
Last Modified:09 Jun 2011 04:07

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