Characterization of Retrieved Total Ankle Replacement Liners

Dinesh Gundapaneni; Richard T Laughlin; Tarun Goswami

doi:10.1016/j.engfailanal.2016.09.005

Characterization of Retrieved Total Ankle Replacement Liners

Dinesh Gundapaneni, Richard T Laughlin, Tarun Goswami

Wright State University

Research output: Contribution to journal › Article › peer-review

Abstract

<p> <p id="x-x-sp0155"> This paper describes the failure analysis of two Total Ankle Replacement (TAR) devices where one device failed mechanically and the other device failed due to excessive wear and loosening. Optical and <a href="https://www.sciencedirect.com/topics/engineering/confocal-imaging" title="Learn more about confocal imaging from ScienceDirect's AI-generated Topic Pages"> confocal imaging </a> procedures were used to identify various failure modes. <a href="https://www.sciencedirect.com/topics/engineering/fourier-transform-infrared-spectroscopy" title="Learn more about Fourier transform infrared spectroscopy from ScienceDirect's AI-generated Topic Pages"> Fourier transform infrared spectroscopy </a> was used to determine the oxidation index and <a href="https://www.sciencedirect.com/topics/engineering/crystallinity" title="Learn more about crystallinity from ScienceDirect's AI-generated Topic Pages"> crystallinity </a> of the liners and compared them with values obtained for a shelf-aged liner which is used as a control. <a href="https://www.sciencedirect.com/topics/engineering/regression-equation" title="Learn more about Regression equations from ScienceDirect's AI-generated Topic Pages"> Regression equations </a> were developed based on literature data to correlate oxidation index with strength of the material. 3D models of each liner were constructed to understand the damage modes at surface and sub-surface levels. Shear banding and <a href="https://www.sciencedirect.com/topics/engineering/embrittlement" title="Learn more about embrittlement from ScienceDirect's AI-generated Topic Pages"> embrittlement </a> were observed for one of the failed liners. Both abrasive and <a href="https://www.sciencedirect.com/topics/engineering/adhesive-wear" title="Learn more about adhesive wear from ScienceDirect's AI-generated Topic Pages"> adhesive wear </a> were observed in the liners but they are not the dominant wear mechanisms unlike in other total joint replacement devices. Based on obtained results, the STAR™ (Scandinavian Total Ankle Replacement) device failed under higher shear and compression stresses at the bearing component resulting in fatigue-induced fracture due to higher torsion generated at the ankle joint. The Agility™ (DePuy) device showed lack of proper bony ingrowth resulting in clinical failure. </p></p>

Original language	American English
Pages (from-to)	237-254
Number of pages	18
Journal	Engineering Failure Analysis
Volume	70
DOIs	https://doi.org/10.1016/j.engfailanal.2016.09.005
State	Published - Dec 1 2016

Keywords

Ankle
Bearing
Replacement
UHMWPE
Wear

Disciplines

Biomedical Engineering and Bioengineering
Engineering
Industrial Engineering
Operations Research, Systems Engineering and Industrial Engineering

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10.1016/j.engfailanal.2016.09.005License: Unspecified

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@article{24c5b5c5c8524ca9b0eaa0b6e274dcfc,

title = "Characterization of Retrieved Total Ankle Replacement Liners",

abstract = " This paper describes the failure analysis of two Total Ankle Replacement (TAR) devices where one device failed mechanically and the other device failed due to excessive wear and loosening. Optical and confocal imaging procedures were used to identify various failure modes. Fourier transform infrared spectroscopy was used to determine the oxidation index and crystallinity of the liners and compared them with values obtained for a shelf-aged liner which is used as a control. Regression equations were developed based on literature data to correlate oxidation index with strength of the material. 3D models of each liner were constructed to understand the damage modes at surface and sub-surface levels. Shear banding and embrittlement were observed for one of the failed liners. Both abrasive and adhesive wear were observed in the liners but they are not the dominant wear mechanisms unlike in other total joint replacement devices. Based on obtained results, the STAR™ (Scandinavian Total Ankle Replacement) device failed under higher shear and compression stresses at the bearing component resulting in fatigue-induced fracture due to higher torsion generated at the ankle joint. The Agility™ (DePuy) device showed lack of proper bony ingrowth resulting in clinical failure. ",

keywords = "Ankle, Bearing, Replacement, UHMWPE, Wear",

author = "Dinesh Gundapaneni and Laughlin, {Richard T} and Tarun Goswami",

note = "Publisher Copyright: {\textcopyright} 2016",

year = "2016",

month = dec,

day = "1",

doi = "10.1016/j.engfailanal.2016.09.005",

language = "American English",

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T1 - Characterization of Retrieved Total Ankle Replacement Liners

AU - Gundapaneni, Dinesh

AU - Laughlin, Richard T

AU - Goswami, Tarun

PY - 2016/12/1

Y1 - 2016/12/1

N2 - This paper describes the failure analysis of two Total Ankle Replacement (TAR) devices where one device failed mechanically and the other device failed due to excessive wear and loosening. Optical and confocal imaging procedures were used to identify various failure modes. Fourier transform infrared spectroscopy was used to determine the oxidation index and crystallinity of the liners and compared them with values obtained for a shelf-aged liner which is used as a control. Regression equations were developed based on literature data to correlate oxidation index with strength of the material. 3D models of each liner were constructed to understand the damage modes at surface and sub-surface levels. Shear banding and embrittlement were observed for one of the failed liners. Both abrasive and adhesive wear were observed in the liners but they are not the dominant wear mechanisms unlike in other total joint replacement devices. Based on obtained results, the STAR™ (Scandinavian Total Ankle Replacement) device failed under higher shear and compression stresses at the bearing component resulting in fatigue-induced fracture due to higher torsion generated at the ankle joint. The Agility™ (DePuy) device showed lack of proper bony ingrowth resulting in clinical failure.

AB - This paper describes the failure analysis of two Total Ankle Replacement (TAR) devices where one device failed mechanically and the other device failed due to excessive wear and loosening. Optical and confocal imaging procedures were used to identify various failure modes. Fourier transform infrared spectroscopy was used to determine the oxidation index and crystallinity of the liners and compared them with values obtained for a shelf-aged liner which is used as a control. Regression equations were developed based on literature data to correlate oxidation index with strength of the material. 3D models of each liner were constructed to understand the damage modes at surface and sub-surface levels. Shear banding and embrittlement were observed for one of the failed liners. Both abrasive and adhesive wear were observed in the liners but they are not the dominant wear mechanisms unlike in other total joint replacement devices. Based on obtained results, the STAR™ (Scandinavian Total Ankle Replacement) device failed under higher shear and compression stresses at the bearing component resulting in fatigue-induced fracture due to higher torsion generated at the ankle joint. The Agility™ (DePuy) device showed lack of proper bony ingrowth resulting in clinical failure.

KW - Ankle

KW - Bearing

KW - Replacement

KW - UHMWPE

KW - Wear

UR - https://corescholar.libraries.wright.edu/bie/237

U2 - 10.1016/j.engfailanal.2016.09.005

DO - 10.1016/j.engfailanal.2016.09.005

M3 - Article

VL - 70

SP - 237

EP - 254

JO - Engineering Failure Analysis

JF - Engineering Failure Analysis

ER -

Characterization of Retrieved Total Ankle Replacement Liners

Abstract

Keywords

Disciplines

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