Parametric analysis of glenoid implant design and fixation type
File(s)geraldes 2016 jors parametric glenoi.pdf (1.11 MB)
Accepted version
Author(s)
Geraldes, DM
Hansen, U
Amis, AA
Type
Journal Article
Abstract
Common post-operative problems in shoulder arthroplasty such as glenoid loosening and joint instability may be reduced by improvements in glenoid design, shape, material choice and fixation method. A framework for parametric analysis of different implant fixation configurations was developed in order to efficiently sift through potential glenoid component designs and investigate the influence of design factors such as fixation type, component thickness and peg position, number, diameter and length in a multi-factorial design investigation. The proposed method allowed for simultaneous comparison of the performance of 344 different parametric variations of 10 different reference geometries with large central fixation features or small peripheral pegs, undergoing four different worst-case scenario loading conditions, averaging 64.7 seconds per model. The impact of design parameters were assessed for different factors responsible for post-operative problems in shoulder arthroplasty, such as bone volume preservation, stresses in the implant, central displacement or fixation stability, and the worst performing geometries all relied on conventional central fixation. Of the remaining geometries, four peripheral fixation configurations produced von Mises stresses comfortably below the material's yield strength. We show that the developed method allows for simple, direct, rapid and repeatable comparison of different design features, material choices or fixation methods by analyzing how they influence the bone-implant mechanical environment. The proposed method can provide valuable insight in implant design optimization by screening through multiple potential design modifications at an early design evaluation stage and highlighting the best performing combinations according to the failure mechanism to mitigate. This article is protected by copyright. All rights reserved.
Date Issued
2017-04-01
Online Publication Date
2020-03-10T08:38:42Z
Date Acceptance
2016-05-24
ISSN
1554-527X
Publisher
Wiley
Start Page
775
End Page
784
Journal / Book Title
Journal of Orthopaedic Research
Volume
35
Issue
4
Copyright Statement
© 2016 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. This is the peer reviewed version of the following article, which has been published in final form at https://onlinelibrary.wiley.com/doi/full/10.1002/jor.23309. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
Source Database
pubmed
Sponsor
Wellcome Trust
Identifier
http://www.ncbi.nlm.nih.gov/pubmed/27219615
Grant Number
WT 098269/Z/12/Z
Subjects
Science & Technology
Life Sciences & Biomedicine
Orthopedics
glenoid
parametric analysis
peripheral fixation
finite element
shoulder arthroplasty
TOTAL SHOULDER ARTHROPLASTY
FINITE-ELEMENT MODEL
GLENOHUMERAL JOINT
COMPONENT DESIGN
BONE STRENGTH
PEG DESIGN
POLYETHYLENE
REPLACEMENT
SURVIVAL
STRESSES
finite element
glenoid
parametric analysis
peripheral fixation
shoulder arthroplasty
Arthroplasty, Replacement
Biomechanical Phenomena
Bone Cements
Finite Element Analysis
Humans
Joint Prosthesis
Materials Testing
Postoperative Complications
Pressure
Prosthesis Design
Prosthesis Failure
Reproducibility of Results
Scapula
Shoulder Joint
Stress, Mechanical
Scapula
Shoulder Joint
Humans
Postoperative Complications
Prosthesis Failure
Bone Cements
Arthroplasty, Replacement
Reproducibility of Results
Prosthesis Design
Materials Testing
Joint Prosthesis
Finite Element Analysis
Stress, Mechanical
Pressure
Biomechanical Phenomena
finite element
glenoid
parametric analysis
peripheral fixation
shoulder arthroplasty
Orthopedics
0903 Biomedical Engineering
1103 Clinical Sciences
1106 Human Movement and Sports Sciences
Publication Status
Published
Date Publish Online
2016-05-24