Laser Scanning as a Useful Tool in Implant Retrieval Analysis: A Demonstration Using Rotating Platform and Fixed Bearing Tibial Inserts

Abstract Objective methods for analyzing arthroplasty retrieval implants are needed. To address this, we used a readily available laser scanner to analyze damage deviations between cohorts of rotating platform and fixed bearing inserts previously analyzed using traditional, subjective retrieval anal...

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Bibliographic Details
Published in:The Journal of arthroplasty 2013-09, Vol.28 (8), p.152-156
Main Authors: Stoner, Kirsten E., MEng, Nassif, Nader A., MD, Wright, Timothy M., PhD, Padgett, Douglas E., MD
Format: Article
Language:English
Subjects:
Aged
Aged, 80 and over
arthroplasty
Arthroplasty, Replacement, Knee - instrumentation
Device Removal
Equipment Failure Analysis - methods
Female
Hip Joint - surgery
Humans
Imaging, Three-Dimensional - methods
implant retrieval
Knee Prosthesis
laser scanning
Lasers - utilization
Male
Middle Aged
Orthopedics
Polyethylene
Prosthesis Design
Prosthesis Failure
Stress, Mechanical
Tibia - surgery
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Summary:Abstract Objective methods for analyzing arthroplasty retrieval implants are needed. To address this, we used a readily available laser scanner to analyze damage deviations between cohorts of rotating platform and fixed bearing inserts previously analyzed using traditional, subjective retrieval analysis methods. We asked the following research questions: 1) Do articular surface deviations measured by the scanner correlate with the subjective damage scores? 2) Do articular surface deviations differ between inserts due to design differences? Correlations between deviations and damage scores were present in RP but not FB inserts. Seven different deviation patterns were present between the RP and FB inserts and were a function of design. In conclusion laser scanning was found to be a useful objective tool for analyzing arthroplasty retrievals.
ISSN:0883-5403
1532-8406
DOI:10.1016/j.arth.2013.07.004