1. ABOUT THE DATASET -------------------- Title: Data associated with "The influence of cross shear and contact pressure on the wear of UHMWPE-on-PEEK-OPTIMA™ for use in total knee replacement" Creator(s): Raelene M Cowie; Louise M Jennings Organisation(s): Institute of Medical and Biological Engineering, School of Mechanical Engineering, University of Leeds, UK. LS2 9JT Rights-holder(s):Unless otherwise stated, Copyright 2023 University of Leeds Publication Year: 2023 Description: This dataset contains material to supplement the article "The influence of cross shear and contact pressure on the wear of UHMWPE-on-PEEK-OPTIMA™ for use in total knee replacement" including: UHMWPE wear factors, bulk lubricant temperature measurements, surface topographical analysis and wear coefficient calculations. Wear factors of UHMWPE were calculated from gravimetric analysis of the UHMWPE pins and converted to a wear factor; bulk lubricant temperatures were taken close to the articulating surfaces using a calibrated thermocouple and the surface roughness of the PEEK plates was taken using contacting profilometry. Wear of the UHMWPE-on-PEEK bearing couple was compared to previous investigations of UHMWPE-on-CoCr [Abdelgaied et al 2018]. Cite as: R.M. Cowie, L.M. Jennings Dataset Associated with “The Influence of Cross Shear and Contact Pressure on the Wear of UHMWPE-On-PEEK-OPTIMA for Use in Total Knee Replacement (2023) https://doi.org/10.5518/1419 [Dataset] Related publication: Raelene M. Cowie, Adam Briscoe, Louise M. Jennings, The influence of cross shear and contact pressure on the wear of UHMWPE-on-PEEK-OPTIMA™ for use in total knee replacement, Journal of the Mechanical Behavior of Biomedical Materials, Volume 148, 2023, 106196, https://doi.org/10.1016/j.jmbbm.2023.106196. Contact: r.cowie@leeds.ac.uk; l.m.jennings@leeds.ac.uk 2. TERMS OF USE --------------- Copyright 2023 University of Leeds. Unless otherwise stated, this dataset is licensed under a Creative Commons Attribution 4.0 International Licence: https://creativecommons.org/licenses/by/4.0/. 3. PROJECT AND FUNDING INFORMATION ---------------------------------- Title: All-polymer total knee replacement Dates: This dataset was created during the course of a long-term collaboration with Invibio ltd Funding organisation: Invibio Knees Ltd; Innovation and Knowledge Centre in Medical Technologies funded by the EPSRC, TSB and BBSRC; WELMEC, a centre of Excellence in Medical Engineering funded by the Wellcome Trust and EPSRC; EPSRC Centre for Innovative Manufacturing in Medical Devices Grant no.: EP/J017620/1; WT 088908/Z/09/Z; EP/K029592/1 4. CONTENTS ----------- Please copy and paste the text files into Excel for correct formatting 5. METHODS ---------- - Study carried out on 6 station multi-axial pin-on-plate rig using GUR1020 UHMWPE pins of different contact face diameter and injection moulded PEEK-OPTIMA plates - The influence of changing cross-shear ratio and contact pressure on the UHMWPE-on-PEEK bearing couple was investigated and the results were compared to previous investigations of UHMWPE-on-CoCr by Abdelgaied et al 2018 - The wear of the UHMWPE pins was determined by gravimetric analysis using an Metler Toledo XP26 digital microbalance, measurements were taken every 0.3 million cycles - Bulk lubricant temperature was measured using a calibrated thermocouple positioned close to the articulating surfaces, measurements were taken daily - The surface roughness of the plates was measured using a Taylor Hobson PGI 800 contacting Form Talysurf with a 2 um conical tipped stylus. Filtering and cutoffs were applied appropriate to the ISO standard - Data from this study is compared to "Abdelgaied A, Fisher J and Jennings LM. A comprehensive combined experimental and computational framework for pre-clinical wear simulation of total knee replacements. Journal of the Mechanical Behavior of Biomedical Materials. 2018; 78: 282-91." - Full methods available through the article and the citation shown above