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Updated: Jun 27, 2026

Oscillation and Reaction Board Techniques for Estimating Inertial Properties of a Below-knee Prosthesis
Published on: May 8, 2014
[Testing of friction node simulators for hip prostheses]
G P Kotelnikov1, A N Nikolaenko1, V V Ivanov1
1Samara State Medical University, Samara, Russia.
Objective:
To estimate advisability of prototypes of ultra-high molecular weight polyethylene (UHMWPE) in hip arthroplasty.
Material And Methods:
We used 34 UHMWPE specimens for tests and developed a test program consisting of incoming control of specimen geometrical parameters, tribotechnical tests, assessment of liner surface condition and deviation from roundness.
Results:
Input control of geometrical parameters of specimens showed their heterogeneity. UHMWPE specimens with negative value (Dc-Dh) failed tribotechnical tests. Specimens with value (Dc-Dh) within 0.6-0.8 mm demonstrated lower value of T moment compared to other specimens.
Conclusion:
About 75% of UHMWPE prototype liners are suitable for arthroplasty.
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