noninvasive imaging predicts failure load of the spine with simulated osteolytic defects*† by...
TRANSCRIPT
Noninvasive Imaging Predicts Failure Load of the Spine with Simulated Osteolytic Defects*†
by Kelli M. Whealan, S. Daniel Kwak, John R. Tedrow, Kaoru Inoue, and Brian D. Snyder
J Bone Joint Surg AmVolume 82(9):1240-1240
September 1, 2000
©2000 by The Journal of Bone and Joint Surgery, Inc.
Computed tomography images showing the locations of the simulated defects.
Kelli M. Whealan et al. J Bone Joint Surg Am 2000;82:1240
©2000 by The Journal of Bone and Joint Surgery, Inc.
Pixel-mapping algorithms. x¯, y¯ are the coordinates of the modulus-weighted centroid, and da represents a single pixel with dimensions determined by the resolution of the computed
tomography image.
Kelli M. Whealan et al. J Bone Joint Surg Am 2000;82:1240
©2000 by The Journal of Bone and Joint Surgery, Inc.
Dual-energy x-ray absorptiometry cross-sectional attenuation profile.
Kelli M. Whealan et al. J Bone Joint Surg Am 2000;82:1240
©2000 by The Journal of Bone and Joint Surgery, Inc.
Illustration of the hydraulic spine testing system39.
Kelli M. Whealan et al. J Bone Joint Surg Am 2000;82:1240
©2000 by The Journal of Bone and Joint Surgery, Inc.
The slope of the regression line for the correlation between the quantitative computed tomography (QCT)-predicted and the measured failure loads (Fz) was dependent on defect
location (p = 0.023).
Kelli M. Whealan et al. J Bone Joint Surg Am 2000;82:1240
©2000 by The Journal of Bone and Joint Surgery, Inc.
Concordance of predicted failure load by quantitative computed tomography (QCT) and measured failure load (Fz) about the y = x line (rc = 0.74).
Kelli M. Whealan et al. J Bone Joint Surg Am 2000;82:1240
©2000 by The Journal of Bone and Joint Surgery, Inc.