also, 'trabecular packing/cluster' but they are less used

Figure 2.2 Trabecular system: 1 , oblique superior trabecular bundle; 2 and 4, supporting trabeculae of the facet joints; 3, interior oblique bundle
http://books.google.it/books?id=Bf3v9OE7NWQC&pg=PA8&lpg=PA8&...

There is increasing evidence for monitoring the bone trabecular structure to explain, in part, the mechanical properties of bone. Despite the emergence of Computed Tomography, a radiograph is the standard format as it is cheap and used for assessing implant performance. Furthermore, various image-processing techniques developed to assess the trabecular structure from radiographs have regained interest owing to improvements in imaging equipment. This study assessed the precision and accuracy of the Co-occurrence and Run-length matrix, Spatial-frequency and Minkowski-fractal techniques to infer the trabecular direction from radiographs.
(...)
Image A included a perfect single and linear trabecular bundle orientated at 60°
http://linkinghub.elsevier.com/retrieve/pii/S135045330300123...

to identify the main trabecular bundle within the section
http://www.ingentaconnect.com/content/klu/223/2004/00000075/...

The changes occurring in the posterior part of the sacropubic trabecular bundle were evaluated on CT reconstructions via three new criteria
http://www.ncbi.nlm.nih.gov/pubmed/19486247

within main trabecular bundle, perpendicular to the individual primary trabecular orientation, based on an anterior-posterior contact radiograph
http://www.jbmronline.org/doi/abs/10.1359/jbmr.080709


and so on :)

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Note added at 3 days2 hrs (2009-07-05 13:22:24 GMT) Post-grading
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Grazie :)) (anche se invece io non lo capisco, perché si tratta semplicemente della descrizione di una struttura, che può avere o meno - non necessariamente - significato patologico.E questo rimane il suo nome a prescindere dalla sua patologicità - se sono riuscita a spiegarmi... :)