3D Printer Assisted Setup for Acetabular Labrum Biomechanics

R. Bugra Husemoglu; Gizem Baysan; Cihangir Türemiş; Onur Gürsan; Onur Hapa; Hasan Havitcioglu

R. Bugra Husemoglu https://orcid.org/0000-0003-1979-160X
Gizem Baysan https://orcid.org/0000-0002-3195-9156
Cihangir Türemiş https://orcid.org/0000-0002-5794-6652
Onur Gürsan https://orcid.org/0000-0002-6356-3834
Onur Hapa https://orcid.org/0000-0001-8154-658X
Hasan Havitcioglu https://orcid.org/0000-0001-8169-3539

Keywords: 3d printed testing setup, compression test, acetabular labrum biomechanics

Abstract

The hip joint is responsible for providing a support of the weight of upper body. It provides a force transmission from the axial skeleton to the lower extremities. Therefore, labral tears might lead to serious outcomes with time; such as hip pain, degeneration, even arthritis. In this study, we aimed to determine human acetabular labrum mechanical properties with the help of a newly designed compression test set-up. Study was performed with 9 human acetabular labrum tissues obtained from volunteers (with the average age of 65,5±8,1; 4 female and 5 male). The samples were evaluated separately by using a 3D printer designed test set-up with a 100% humidity and a displacement rate of 10 mm/min at 24(±1) °C. The data up to 70 N loading were used for biomechanical evaluations. The average elastic modulus (0.022 MPa ± 0.001) was evaluated with the maximum stress (1.169 MPa ± 0.052) and the maximum strain (53.09 ± 2.643) at 70 N loading. In conclusion, the obtained data verifies that the test set-up is like to anatomical design and data is acceptable.