Penetration depth method-novel real-time strategy for evaluating femoroacetabular impingement

We introduce a new method for computerized real‐time evaluation of femoroacetabular impingement (FAI). In contrast to previously presented stress analyses, this method is based on two types of predictions of penetration depths for two rotating bodies: curvilinear and radial penetration depth. This i...

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Bibliographic Details
Published in:Journal of orthopaedic research Vol. 28; no. 7; pp. 880 - 886
Main Authors: Arbabi, Ehsan, Chegini, Salman, Boulic, Ronan, Tannast, Moritz, Ferguson, Stephen J., Thalmann, Daniel
Format: Journal Article
Language:English
Published: Hoboken Wiley Subscription Services, Inc., A Wiley Company 01.07.2010
Subjects:
Acetabulum - pathology
Computer Simulation
computer-aided simulation
femoroacetabular impingement
Femur Head - pathology
Finite Element Analysis
hip
Hip Joint - pathology
Hip Joint - surgery
Humans
Models, Biological
Osteoarthritis, Hip - pathology
Osteoarthritis, Hip - surgery
penetration depth
Preoperative Care
stress
ISSN:0736-0266, 1554-527X, 1554-527X
Online Access:Get full text
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Summary:We introduce a new method for computerized real‐time evaluation of femoroacetabular impingement (FAI). In contrast to previously presented stress analyses, this method is based on two types of predictions of penetration depths for two rotating bodies: curvilinear and radial penetration depth. This intuitive method allows the analysis of both bony and soft tissue structures (such as cartilage and acetabular labrum) in real time. Characteristic penetration depth patterns were found for different subtypes of FAI, such as cam and pincer pathologies. In addition, correlation between the penetration depths (estimated by applying this method) and the existing contact stresses (estimated by applying the finite element method) of various hip morphologies were found. A strong correlation with predicted stress values existed, with a mean correlation coefficient of 0.91 for the curvilinear and 0.80 for the radial penetration method. The results show that the penetration depth method is a promising, fast, and accurate method for quantification and diagnosis of FAI. © 2010 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 28:880–886, 2010
Bibliography:istex:1166D62A967A489FC76C78304C3A9C5F850A1576
ark:/67375/WNG-KWZT6C3R-R
ArticleID:JOR21076
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0736-0266
1554-527X
1554-527X
DOI:10.1002/jor.21076