Abstract
The distal oblique bundle of the forearm is a structure that has been under vigorous investigation for the past decade. It is part of the distal interosseous membrane (DIOM) and seems to have an important stabilizing effect in the distal radioulnar joint. In this essay, we have tried to summarize the anatomical characteristics of the structure. We have also compared and contrasted this to our own experience with eight freshly frozen forearms. It is our strong belief that the distal oblique bundle (DOB) may play a keystone role in future stabilization techniques of the distal radioulnar joint, and its anatomy characteristics need to be fully investigated.
Highlights
Distal oblique bundle (DOB) is the thickest part of the distal interosseous membrane (DIOM) of the forearm
It is our strong belief that the distal oblique bundle (DOB) may play a keystone role in future stabilization techniques of the distal radioulnar joint, and its anatomy characteristics need to be fully investigated
The fibers blended into the capsular tissue of the distal radioulnar joint (DRUJ) and eventually the DOB inserted to the inferior rim of the sigmoid notch of the radius
Summary
Distal oblique bundle (DOB) is the thickest part of the distal interosseous membrane (DIOM) of the forearm It has a very important stabilizing effect on the distal radioulnar joint [1,2,3]. Some fibers extended more distally along the anterior and posterior ridges of the sigmoid notch, so the DOB seemed to display continuity with the dorsal and palmar radioulnar ligaments of the triangular fibrocartilage complex (TFCC)”. This definition has been accepted in most of the relevant literature. Hohenberger et al noticed one or more connecting fibers to the DRUJ or to components of the TFCC, in 85% of DOBs [4]
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