scholarly journals Introduction of a three-dimensional computed tomography measurement method for acetabular fractures

PLoS ONE ◽  
2019 ◽  
Vol 14 (6) ◽  
pp. e0218612
Author(s):  
A. M. L. Meesters ◽  
J. Kraeima ◽  
H. Banierink ◽  
C. H. Slump ◽  
J. P. P. M. de Vries ◽  
...  
2000 ◽  
Vol 13 (1) ◽  
pp. 46
Author(s):  
Poong Taek Kim ◽  
Joo Chul Ihn ◽  
Chang Wug Oh ◽  
Seung Hoon Oh

2015 ◽  
Vol 15 (02) ◽  
pp. 1540033 ◽  
Author(s):  
K. J. CHO ◽  
J. H. MÜLLER ◽  
P. J. ERASMUS

In patellofemoral arthroplasty (PFA), rotational alignment is paramount for optimal patellofemoral function. Surgeons require a simple and effective measurement reference, through which the intact trochlear groove orientation can be quantified, to ensure good PFA alignment. We measured axial and coronal trochlear groove alignment in three-dimensional (3D) segmented computed tomography (CT) femurs relative to different references: The posterior condylar plane; the distal condylar plane, and the anatomical axis. The trochlear inclination angle (TIA) shows a better linear correlation with the axial groove angle when measured from the line perpendicular to the axial groove line as opposed to measurement from the posterior condylar plane. Similarly, a better linear correlation was achieved between the anatomical and the mechanical angles when measured from the coronal groove line as opposed to a line perpendicular to the distal condylar plane. Since axial and coronal groove alignment is quantifiable with respect to anatomical landmarks preoperatively, it may allow using the groove lines as a guideline for selection of the most appropriate patellofemoral prosthesis design. This may lead to the application of a PFA that better fits the patients' trochlear anatomy.


Radiology ◽  
1985 ◽  
Vol 155 (1) ◽  
pp. 183-186 ◽  
Author(s):  
D L Burk ◽  
D C Mears ◽  
W H Kennedy ◽  
L A Cooperstein ◽  
D L Herbert

Author(s):  
H.W. Deckman ◽  
B.F. Flannery ◽  
J.H. Dunsmuir ◽  
K.D' Amico

We have developed a new X-ray microscope which produces complete three dimensional images of samples. The microscope operates by performing X-ray tomography with unprecedented resolution. Tomography is a non-invasive imaging technique that creates maps of the internal structure of samples from measurement of the attenuation of penetrating radiation. As conventionally practiced in medical Computed Tomography (CT), radiologists produce maps of bone and tissue structure in several planar sections that reveal features with 1mm resolution and 1% contrast. Microtomography extends the capability of CT in several ways. First, the resolution which approaches one micron, is one thousand times higher than that of the medical CT. Second, our approach acquires and analyses the data in a panoramic imaging format that directly produces three-dimensional maps in a series of contiguous stacked planes. Typical maps available today consist of three hundred planar sections each containing 512x512 pixels. Finally, and perhaps of most import scientifically, microtomography using a synchrotron X-ray source, allows us to generate maps of individual element.


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