articular disc of distal radioulnar joint (radioulnar articular disc, triangular disc of wrist, triquetrous cartilage)

Introduction

The disc that holds together the distal ends of the radius & ulna.

Attachment

• apex to depression between the styloid process & distal surface of the head of the ulna
• base to the ridge separating the ulnar notch from the carpal surface of the radius

More general terms

• articular disc, (fibroplate, interarticular fibrocartilage)

Component of

• distal/inferior radioulnar joint; distal radioulnar articulation