1. ABOUT THE DATASET -------------------- Title: DM THR Tracker Validation Data Creator(s): Matthew P. Shuttleworth [1], Oliver Vickers [2], Mackenzie Smeeton [2], Tim Board [2, 3], Graham H. Isaac [2], Peter Culmer [4], Sophie Williams [2], Robert W. Kay [1] Organisation(s): 1. Future Manufacturing Process Research Group, University of Leeds; 2. Institute of Medical and Biological Sciences, University of Leeds; 3. Wrightington Hospital; 4. Healthcare Mechatronics, University of Leeds Rights-holder(s): Matthew P. Shuttleworth, Oliver Vickers, Mackenzie Smeeton, Tim Board, Graham H. Isaac, Peter Culmer, Sophie Williams, Robert W. Kay Publication Year: 2022 Description: Dual mobility (DM) implants are being increasingly used for total hip arthroplasties due to additional range of motion and joint stability they afford over more traditional implant types. Currently there are no reported methods for monitoring their motions under realistic operating conditions and therefore, it is challenging to predict how they will function under clinically relevant conditions and what failure modes may exist. This repository contains the validation data and required post-processing scripts for a novel inertial tracking system that directly mounts to the mobile liner of DM implants. Cite as: Matthew P. Shuttleworth, Oliver Vickers, Mackenzie Smeeton, Tim Board, Graham H. Isaac, Peter Culmer, Sophie Williams, Robert W. Kay (2022): Inertial Tracking System for Monitoring Dual-Mobility Hip Implants In-Vitro. [Dataset]. https://doi.org/10.5518/1232 Related publication: SUBMITTED - Matthew P. Shuttleworth, Oliver Vickers, Mackenzie Smeeton, Tim Board, Graham H. Isaac, Peter Culmer, Sophie Williams, Robert W. Kay; In-Vitro Motion Tracking of Dual Mobility Hip Replacements, IEEE Transactions on Biomedical Circuits and Systems, 2022 Contact: M.P.Shuttleworth@leeds.ac.uk 2. TERMS OF USE --------------- Copyright 2022 Matthew P. Shuttleworth, Oliver Vickers, Mackenzie Smeeton, Tim Board, Graham H. Isaac, Peter Culmer, Sophie Williams, Robert W. Kay 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: Enhanced surgical treatments for hip osteoarthritis Dates: 01 January 2018 - 31 December 2023 Funding organisation: Engineering and Physical Sciences Research Council Grant no.: EP/R003971/1 We would like to acknowledge that in addition to the funding organisation, implant components used in the testing that produced this dataset were provided by our industrial partner DePuy Synthes. 4. CONTENTS ----------- The repository consists of two main folders: MATLAB and Data. The MATLAB folder contains MATLAB scripts and the requisite functions for processing the data and will produce the results reported in the associated journal article. These are required to normalise and compare the differing outputs from of the various measurement devices. Data should be processed in two stages: 1. Individual trackers - this performs the peak analysis and calculates the peak error measurement for all tests on one particular tracker. 2. Multiple trackers - takes the results of stage one and collates them for creating the plots in the journal article. The individual tracker processor must be run on all datasets prior to the multiple tracker processor. Instructions for using each script can be found in the relevant subfolders. The data folder contains the raw data from the testing in the associated journal article and is subdivided as follows: Test Condition > Tracker Number > Output Device The folders at the lowest levels each contain ten .csv files and one .mat file. The csv files follow a standard test condition based naming convention which is as follows: TriAxis_[Test Variable]_[Range of Motion]_[Cycle_Period].csv Where: Test Variable = AAS (Average Angular Speed) or ROM (Range of Motion) Range of Motion = a decimal number split using a hyphen to avoid confusion with the file extensions e.g.: 10-32 equates to 10.32 Cycle Period = a decimal number split using a hyphen to avoid confusion with the file extensions e.g.: 1-2 equates to 1.2 The .mat file is a processed version of the .csv files within the same folder and has been included for convenience, allowing the user to skip directly to the multiple tracker processor if they wish 5. METHODS ---------- A detailed description of the methods used to collect this data can be found in the associated journal article.