TY - JOUR
T1 - The coefficient of friction of UHMWPE along an entire walking cycle using a ball-on-disc tribometer under arthrokinematics and loading conditions prescribed by ISO 14243-3:2014
AU - Barceinas-Sanchez, J. D.O.
AU - Alvarez-Vera, M.
AU - Montoya-Santiyanes, L. A.
AU - Dominguez-Lopez, I.
AU - Garcia-Garcia, A. L.
N1 - Publisher Copyright:
© 2016 Elsevier Ltd
PY - 2017/1/1
Y1 - 2017/1/1
N2 - The observation of tribological phenomena occurring in total knee replacement (TKR) simulators may be obscured by the intrinsic complexity of their operation: the dynamics and kinematics prescribed by the ISO 14243-3:2014 standard, and the geometry of the surfaces involved. On the other hand, evaluating the individual performance of the tribosystem elements may be carried out in simpler apparatuses. An experimental method is presented here, by means of which the arthrokinematics and loading conditions prescribed by the said standard are adapted to a ball-on-disc configuration in order to observe the behavior of the coefficient of friction along an entire walking cycle, using the contact point of an AISI 316L stainless steel ball rolling/sliding on an ultra-high molecular weight polyethylene (UHMWPE) disc, lubricated by a solution of fetal bovine serum, at 37 °C. The method was tried on two different testing fluids prepared with protein concentrations of 20 g/L, according to the said standard, and 36 g/L, as received. The statistical model obtained for the behavior of the COF during the entire walking cycle may be used in numerical simulations of UHMWPE wear, under the conditions established by ISO 14243-3:2014.
AB - The observation of tribological phenomena occurring in total knee replacement (TKR) simulators may be obscured by the intrinsic complexity of their operation: the dynamics and kinematics prescribed by the ISO 14243-3:2014 standard, and the geometry of the surfaces involved. On the other hand, evaluating the individual performance of the tribosystem elements may be carried out in simpler apparatuses. An experimental method is presented here, by means of which the arthrokinematics and loading conditions prescribed by the said standard are adapted to a ball-on-disc configuration in order to observe the behavior of the coefficient of friction along an entire walking cycle, using the contact point of an AISI 316L stainless steel ball rolling/sliding on an ultra-high molecular weight polyethylene (UHMWPE) disc, lubricated by a solution of fetal bovine serum, at 37 °C. The method was tried on two different testing fluids prepared with protein concentrations of 20 g/L, according to the said standard, and 36 g/L, as received. The statistical model obtained for the behavior of the COF during the entire walking cycle may be used in numerical simulations of UHMWPE wear, under the conditions established by ISO 14243-3:2014.
KW - Ball-on-disc
KW - Coefficient of friction
KW - ISO standard
KW - Sliding/rolling
KW - UHMWPE
KW - Walking cycle
UR - http://www.scopus.com/inward/record.url?scp=84986578206&partnerID=8YFLogxK
U2 - 10.1016/j.jmbbm.2016.08.032
DO - 10.1016/j.jmbbm.2016.08.032
M3 - Artículo
C2 - 27608425
SN - 1751-6161
VL - 65
SP - 274
EP - 280
JO - Journal of the Mechanical Behavior of Biomedical Materials
JF - Journal of the Mechanical Behavior of Biomedical Materials
ER -