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MR-plastination-arthrography: a new technique used to study the distal tibiofibular syndesmosis
John J Hermans1, Noortje Wentink, Gert-Jan Kleinrensink
1Department of Radiology, Erasmus University Medical Center, 's Gravendijkwal 230, P.O. Box 2040, 3000 CA Rotterdam, Rotterdam 3015 GD, The Netherlands. j.j.hermans@erasmusmc.nl
Purpose:
The purpose of this study was to describe a new technique called MR plastination arthrography to study both intra- and extra-articular anatomy.
Materials And Methods:
In six human cadaveric lower legs MR arthrography was performed in either a one-step or two-step procedure. In the former a mixture of diluted Gadolinium and dyed polymer was injected. In the latter the dyed polymer was injected after arthrography wih diluted Gadolinium. Three-millimeter slices of these legs, obtained in a plane identical to that of the MR images, were plastinated according to the E12 technique of von Hagens. The plastination slices were subsequently compared with the MR images.
Results:
The one-step procedure resulted in an inhomogeneous arthrogram. The two-step procedure resulted in a good correlation between the high-resolution MR images and plastination slices, as expressed by a good comparison of anatomic detail of the small syndesmotic recess.
Conclusions:
Images of the distal tibiofibular syndesmosis obtained with plastination arthrography correlated well with images acquired by MR arthrography when performed in a two-step procedure.
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