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TECHNICAL PAPERS

Identification of Cross-Sectional Parameters of Lateral Meniscal Allografts That Predict Tibial Contact Pressure in Human Cadaveric Knees

[+] Author and Article Information
Arthur Huang

Biomedical Engineering Program, University of California, Davis, CA 95616

M. L. Hull, Stephen M. Howell

Department of Mechanical Engineering, and Biomedical Engineering Program, University of California, Davis, CA 95616

Tammy Haut Donahue

Department of Mechanical Engineering, Michigan Technological University, Houghton, MI 49931

J Biomech Eng 124(5), 481-489 (Sep 30, 2002) (9 pages) doi:10.1115/1.1503061 History: Received December 01, 2001; Revised May 01, 2002; Online September 30, 2002
Copyright © 2002 by ASME
Topics: Pressure , Knee , Stress
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References

Figures

Grahic Jump Location
Example MR image of the tibial plateau in the transverse plane indicating two of the four transverse dimensions measured. A reference line was drawn intersecting the most posterior edge of the tibial plateau on the transverse image closest to the joint line. The width of the tibia was measured parallel to the reference line, and the maximum depth of the lateral compartment of the tibial plateau was measured perpendicular to the reference line.
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Example MR image in the sagittal plane indicating one of the four transverse dimensions measured. The depth of the lateral meniscus was measured from the sagittal image that best bisected the lateral compartment. A reference line was drawn through the tibial plateau and the depth of the lateral meniscus was measured parallel to that line.
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Example MR image in the coronal plane indicating one of the four transverse dimensions measured. The width of the lateral meniscus was measured parallel to the articular surface of the tibia on the coronal image that best displayed the tibial spines. A reference line was drawn through the tibia and the width of the lateral meniscus was measured from the outer edge of the meniscus to the lateral spine.
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(a) Schematic of slices made in the lateral meniscus to transect it into 10 sectors grouped into the anterior (A), middle (M), and posterior (P) regions. (b) Schematic of cross section and measurements made to determine five cross-sectional parameters. In addition to the three parameters indicated, two other parameters were the height ratio (h/ho) and the slope (ho/wo). Due to requirements of the testing protocol, the maximum width (w) could not be measured.
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The technique used to calculate the mean pressure from two ranges of pressure sensitive film.
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Diagram illustrating the procedure for determining the difference in the locations of the centroid of area between the autograft and the allograft in the anatomic coordinate system.

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