Research Data Leeds Repository

Citation

Abdelgaied, Abdellatif and Fisher, John and Jennings, Louise (2017) Dataset supporting the publication 'A comparison between electromechanical and pneumatic controlled knee simulators for the investigation of wear of total knee replacements'. University of Leeds. [Dataset] https://doi.org/10.5518/161

Dataset description

More robust pre-clinical experimental wear simulation methods are required in order to simulate a wider range of activities, observed in different patient populations such as younger more active patients, as well as fully meeting and being capable of going well beyond the existing requirements of the relevant international standards. A new six station electromechanically driven simulator (Simulation Solutions, UK) with five fully independently controlled axes of articulation for each station, capable of replicating deep knee bending as well as other adverse conditions, which can be operated in either force or displacement control with improved input kinematic following, has been developed to meet these requirements. This study investigated the wear of a fixed bearing total knee replacement using this electromechanically driven fully independent knee simulator, and compared it to previous data from a predominantly pneumatically controlled simulator in which each station was not fully independently controlled. In addition, the kinematic performance and the repeatability of the simulators have been investigated and compared to the international standard requirements. The wear rates from the electromechanical and pneumatic knee simulators were not significantly different, with wear rates of 2.6 ± 0.9 and 2.7 ± 0.9 [mm3/MC] (mean ± 95% CI, p=0.99) and 5.4 ± 1.4 and 6.7 ± 1.5 [mm3/MC] (mean ± 95% CI, p=0.54) from the electromechanical and pneumatic simulators, under intermediate levels (maximum 5 mm) and high levels (maximum 10 mm) of AP displacements respectively. However, the output kinematic profiles of the control system, which drives the motion of the simulator followed the input kinematic profiles more closely on the electromechanical simulator than the pneumatic simulator. In addition, the electromechanical simulator was capable of following kinematic and loading input cycles within the tolerances of the international standard requirements (ISO 14243-3, 2014). The new generation electromechanical knee simulator with fully independent control has the potential to be used for a much wider range of kinematic conditions, including high-flexion and other severe conditions, due to its improved capability and performance in comparison to the previously used pneumatic controlled simulators.

Keywords:	Knee replacement, electromechanical simulator, pneumatic simulator, polyethylene, wear
Divisions:	Faculty of Engineering and Physical Sciences > School of Mechanical Engineering
Related resources:	Location Type https://doi.org/10.1177/0954411917696519 Publication https://eprints.whiterose.ac.uk/113637/ Publication
License:	Creative Commons Attribution 4.0 International (CC BY 4.0)
Date deposited:	14 Mar 2017 15:22
URI:	https://archive.researchdata.leeds.ac.uk/id/eprint/131
Additional details Additional details Creators or authors: Creators ORCID Other ID Email Primary affiliation Primary affiliation ID Primary affiliation ID type Secondary affiliation Secondary affiliation ID Secondary affiliation ID type Abdelgaied, Abdellatif https://orcid.org/0000-0003-0066-1688 University of Leeds https://ror.org/024mrxd33 ror Fisher, John https://orcid.org/0000-0003-3833-3700 University of Leeds https://ror.org/024mrxd33 ror Jennings, Louise https://orcid.org/0000-0003-1446-4511 University of Leeds https://ror.org/024mrxd33 ror Type of data: Dataset Research funders: Wellcome Trust, EPSRC Grant numbers: WT088908/Z/09/Z Publication date: 2017 Resource language: English Metadata language: English Publisher: University of Leeds Contact email: A.Abdelgaied@leeds.ac.uk Last Modified: 20 Aug 2024 13:37

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readme.txt [2kB] readme.txt [2kB] readme.txt [2kB] Security: Anyone File name: readme.txt Content type: Documentation Mime-Type: text/plain License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 2kB

Data

Six station electromechanically driven knee simulator (Simulation Solutions, UK), and the controlled axes of articulation for each station [2MB] Six station electromechanically driven knee simulator (Simulation Solutions, UK), and the controlled axes of articulation for each station [2MB] Six station electromechanically driven knee simulator (Simulation Solutions, UK), and the controlled axes of articulation for each station [2MB] Security: Anyone File name: Figure 1.GIF Content type: Data Mime-Type: image/gif License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 2MB

Axial load and Flexion Extension Input Profiles [76kB] Axial load and Flexion Extension Input Profiles [76kB] Axial load and Flexion Extension Input Profiles [76kB] Security: Anyone File name: Figure 2.GIF Content type: Data Mime-Type: image/gif License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 76kB

Anterior-posterior displacement and internal-external rotation input profiles [68kB] Anterior-posterior displacement and internal-external rotation input profiles [68kB] Anterior-posterior displacement and internal-external rotation input profiles [68kB] Security: Anyone File name: Figure 3.GIF Content type: Data Mime-Type: image/gif License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 68kB

Input and average output (mean ± 95% CI, n=6) axial load [N] profiles from the electromechanical and pneumatic knee simulators [103kB] Input and average output (mean ± 95% CI, n=6) axial load [N] profiles from the electromechanical and pneumatic knee simulators [103kB] Input and average output (mean ± 95% CI, n=6) axial load [N] profiles from the electromechanical and pneumatic knee simulators [103kB] Security: Anyone File name: Figure 4.GIF Content type: Data Mime-Type: image/gif License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 103kB

Input and average output (mean ± 95% CI, n=6) anterior-posterior displacement [mm] (high kinematics) from the electromechanical and pneumatic knee simulators [92kB] Input and average output (mean ± 95% CI, n=6) anterior-posterior displacement [mm] (high kinematics) from the electromechanical and pneumatic knee simulators [92kB] Input and average output (mean ± 95% CI, n=6) anterior-posterior displacement [mm] (high kinematics) from the electromechanical and pneumatic knee simulators [92kB] Security: Anyone File name: Figure 5.GIF Content type: Data Mime-Type: image/gif License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 92kB

Input and average output (mean ± 95% CI, n=6) internal-external rotation angle [degrees] from the electromechanical and pneumatic knee simulators [77kB] Input and average output (mean ± 95% CI, n=6) internal-external rotation angle [degrees] from the electromechanical and pneumatic knee simulators [77kB] Input and average output (mean ± 95% CI, n=6) internal-external rotation angle [degrees] from the electromechanical and pneumatic knee simulators [77kB] Security: Anyone File name: Figure 6.GIF Content type: Data Mime-Type: image/gif License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 77kB

Input and average output (mean ± 95% CI, n=6) flexion-extension angle [degrees] from the electromechanical and pneumatic knee simulators [59kB] Input and average output (mean ± 95% CI, n=6) flexion-extension angle [degrees] from the electromechanical and pneumatic knee simulators [59kB] Input and average output (mean ± 95% CI, n=6) flexion-extension angle [degrees] from the electromechanical and pneumatic knee simulators [59kB] Security: Anyone File name: Figure 7.GIF Content type: Data Mime-Type: image/gif License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 59kB

Volumetric wear rates under intermediate and high kinematic conditions (mean ± 95% CI, n=6) [65kB] Volumetric wear rates under intermediate and high kinematic conditions (mean ± 95% CI, n=6) [65kB] Volumetric wear rates under intermediate and high kinematic conditions (mean ± 95% CI, n=6) [65kB] Security: Anyone File name: Figure 8.GIF Content type: Data Mime-Type: image/gif License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 65kB

Wear scars for the Sigma fixed bearing TKR after 3MC of high kinematic conditions [2MB] Wear scars for the Sigma fixed bearing TKR after 3MC of high kinematic conditions [2MB] Wear scars for the Sigma fixed bearing TKR after 3MC of high kinematic conditions [2MB] Security: Anyone File name: Figure 9.GIF Content type: Data Mime-Type: image/gif License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 2MB

Volumetric wear rates (mean ± 95% CI, n=6) under intermediate and high kinematic conditions measured from pneumatic and electromechanical knee simulators [82kB] Volumetric wear rates (mean ± 95% CI, n=6) under intermediate and high kinematic conditions measured from pneumatic and electromechanical knee simulators [82kB] Volumetric wear rates (mean ± 95% CI, n=6) under intermediate and high kinematic conditions measured from pneumatic and electromechanical knee simulators [82kB] Security: Anyone File name: Figure 10.GIF Content type: Data Mime-Type: image/gif License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 82kB

Wear scars for the Sigma fixed bearing TKR after 3MC of high kinematic conditions in pneumatic (a) 14 and electromechanical (b) knee simulators [1MB] Wear scars for the Sigma fixed bearing TKR after 3MC of high kinematic conditions in pneumatic (a) 14 and electromechanical (b) knee simulators [1MB] Wear scars for the Sigma fixed bearing TKR after 3MC of high kinematic conditions in pneumatic (a) 14 and electromechanical (b) knee simulators [1MB] Security: Anyone File name: Figure 11.GIF Content type: Data Mime-Type: image/gif License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 1MB

All figures [7MB] All figures [7MB] All figures [7MB] Security: Anyone File name: all_figures.zip Content type: Data Mime-Type: application/zip License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 7MB

Input and average output kinematics (mean ± 95% CI, n=6) from the electromechanical and pneumatic knee simulators [38kB] Input and average output kinematics (mean ± 95% CI, n=6) from the electromechanical and pneumatic knee simulators [38kB] Input and average output kinematics (mean ± 95% CI, n=6) from the electromechanical and pneumatic knee simulators [38kB] Security: Anyone File name: Input and average output kinematics.xlsx Content type: Data Mime-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 38kB

Volumetric wear rates (mean ± 95% CI, n=6) under intermediate and high kinematic conditions measured from pneumatic and electromechanical knee simulators [10kB] Volumetric wear rates (mean ± 95% CI, n=6) under intermediate and high kinematic conditions measured from pneumatic and electromechanical knee simulators [10kB] Volumetric wear rates (mean ± 95% CI, n=6) under intermediate and high kinematic conditions measured from pneumatic and electromechanical knee simulators [10kB] Security: Anyone File name: Volumetric wear rates.xlsx Content type: Data Mime-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 10kB

Specifications of second generation electromechanical and first generation pneumatic knee simulators [14kB] Specifications of second generation electromechanical and first generation pneumatic knee simulators [14kB] Specifications of second generation electromechanical and first generation pneumatic knee simulators [14kB] Security: Anyone File name: Table 1.docx Content type: Data Mime-Type: application/vnd.openxmlformats-officedocument.wordprocessingml.document License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 14kB