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ARUP; ISBN: 978-0-9562121-5-3 - CMBBE 2012 - Cardiff University

ARUP; ISBN: 978-0-9562121-5-3 - CMBBE 2012 - Cardiff University

ARUP; ISBN: 978-0-9562121-5-3 - CMBBE 2012 - Cardiff University

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Figure 1: Maximal principal strains in cancellous bone of native and arthroplastic at<br />

humerus.<br />

Figure 2: Minimal principal strains in cancellous bone of native and arthroplastic at<br />

humerus.<br />

5. CONCLUSIONS<br />

The main goal of this study was to compare the biomechanical behavior of the humerus<br />

in his native and arthroplastic state, with the humeral component of the IBP prosthesis,<br />

in a physiological loading condition in daily activities. The numerical results showed<br />

that the introduction of the component in the humerus significantly alter the mechanical<br />

behavior compared to the native state. In fact, the introduction of the component caused<br />

an increase in mechanical stress on the bone structures (mainly in the cancellous bone<br />

tissue), thus enhancing its fatigue failure. This behavior is in accordance with the results<br />

observed in the nordic orthopaedic records.

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