| 3D representation of the surface topography of normal and dysplastic trochlea using MRI. | |
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MedLine Citation:
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PMID: 20719521 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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The three-dimensional (3D) image of the articular surface topography of the normal and the dysplastic trochlea has not been defined. The aim of this study was to represent both the normal and dysplastic trochlear geometry in 3D using magnetic resonance imaging (MRI). Using the segmentation software program Amira (Mercury Computer Systems, Inc., Chelmsford, USA) we created 3D reconstructions of the distal femur bone and cartilage using MRI scans. Bone and cartilage of the distal femur were traced slice by slice in the acquisitioned dimension while the Amira program reconstructed the 3D model. This model was then transferred to the Rhinoceros 4.0 software (Robert McNeel & Associates, Seattle, USA) for measuring. Using this system a non-invasive 3D representation of the articular cartilage and bone of the normal trochlea and depiction of different types of trochlear dysplasia were possible. Potential advantages of these MRI measurements are assessment of the 3D articular cartilage of the whole trochlea and the bony contours on the same image, no imaging errors from joint malpositioning, no ionizing radiation, precise preoperative planning according to the documented pathomorphology, and comparison between the preoperative and the postoperative shapes. The disadvantages include higher costs compared to radiography or CT scans, and time consuming reconstruction, making them currently a research tool. |
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Authors:
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R Biedert; A Sigg; I Gal; H Gerber |
Publication Detail:
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Type: Journal Article Date: 2010-08-16 |
Journal Detail:
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Title: The Knee Volume: 18 ISSN: 1873-5800 ISO Abbreviation: Knee Publication Date: 2011 Oct |
Date Detail:
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Created Date: 2011-08-29 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9430798 Medline TA: Knee Country: Netherlands |
Other Details:
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Languages: eng Pagination: 340-6 Citation Subset: IM |
Copyright Information:
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Copyright © 2010 Elsevier B.V. All rights reserved. |
Affiliation:
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Sportclinic Villa Linde, Orthopedics and Sport Traumatology, CH-2503 Biel, Switzerland. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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