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Quantitative topographic anatomy of the anterior cruciate ligament femoral footprint
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Norman, D. G. and Williams, M. A. (2012) Quantitative topographic anatomy of the anterior cruciate ligament femoral footprint. In: British Association of the Knee Conference 2012, Derby, 3 Apr 2012 (Unpublished)
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Abstract
Purpose: The purpose of this study was to produce objective quantitative validation of the lateral intercondylar ridge and bifurcate ridge of the ACL femoral footprint, using micro-CT technology, so so as to better understand these importance anatomical landmarks which may aid in placement of grafts in anatomic ACL reconstruction.
Methods: Cadaveric human knees were imaged using a XT 320 H LC Micro CT Scanner to a resolution of 60 microns. The data from these scans was processed using various software to extract the surface of the ACL footprint. among these were VGStudio Max, Magics and Geomagics. This high-resolution surface was then converted into 3-Dimentional Cartesian coordinates using 3D Object Converter which were plotted using the mathematical software MatLab. The ACL footprint was then presented as a relief/terrain map highlighting its topographical characteristic in various colours based on height. This quantitative topographical analysis was then used to objectively validate the existence of the lateral intercondylar ridge and the lateral bifurcate ridge.
Results: Quantitative topographic analysis of the ACL footprint demonstrated the lateral intercondylar right to be present in 57% of subjects (mean length 9.3mm; mean height 1.5mm) with the bifurcate ridge present in 14% (mean length 4.3mm, height 0.9mm). A relief map of the ACL footprint was produced which showed the individual variability of the anatomical ridges.
Conclusions: This study demonstrated that the bony anatomical landmarks of the ACL footprint are a variable entity in individuals. When present, they can be used as a guide for femoral tunnel placement in ACL reconstitution. However, if absent, other techniques need to be adopted such as the 'ruler technique' or intro-operative fluoroscopy, so as to be able to reproducibility replicate anatomical tunnel placement.
Item Type: | Conference Item (Paper) | ||||
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Subjects: | Q Science > QM Human anatomy R Medicine > RD Surgery |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Psychology Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) |
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Official Date: | 1 February 2012 | ||||
Dates: |
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Status: | Peer Reviewed | ||||
Publication Status: | Unpublished | ||||
Conference Paper Type: | Paper | ||||
Title of Event: | British Association of the Knee Conference 2012 | ||||
Type of Event: | Conference | ||||
Location of Event: | Derby | ||||
Date(s) of Event: | 3 Apr 2012 | ||||
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