The dorsal and volar radioulnar ligaments 3. The wrist contains some of the most complex and fine-scale architecture of any joint in the body. The triangular fibrocartilage complex (TFCC), which spans the space between the distal ulna and ulnar carpus, consists of a relatively avascular cartilaginous articular disc (TFC) merged with highly vascularized, ligamentous structures of somewhat variable form. The result of this fine-scale architecture and complex geometry is that precise wrist imaging and interpretation of the images are challenging diagnostic problems. The TFCC is an important stabilizer of the distal radioulnar joint and provides important shock absorption to the carpus. Abstract: Triangular fibrocartilage complex is a major stabilizer of the distal radioulnar joint (DRUJ).
The TFCC is located on the ulnar aspect of the wrist joint between the ulna and the lunate and triquetrum of the proximal carpal row. The TFCC is a complex structure consisting of the triangular fibrocartilage (TFC) disc proper, ulnomeniscal homologue and numerous ligaments and tendons... Triangular fibrocartilage complex (TFCC) injuries may be traumatic or degenerative in nature. The triangular fibrocartilage complex (TFCC) is an example of one such structure, for which lesions may be missed unless high‐resolution magnetic resonance imaging (MRI) obtained via a standard matrix with a small field of view or high‐resolution imaging matrix … The meniscus homol…
In this article, we review the complex architecture of the wrist, as well as pitfalls at magnetic resonance (MR) imaging due to imaging factors and variations of the basic anat…
MRI ProtocolMRI Protocol z 8-10 cm FOV z Dedicated wrist coil z 2-3 mm slices z 288 x 192 matrix; paired T1 and T2-weighted images z Thin slice 3D for TFCC and ligaments z “Superman” position better for imaging but worse for motion z Hand by side: STIR or IDEAL for fat sat z 8-10 cm FOV z Dedicated wrist coil z 2-3 mm slices z 288 x 192 matrix; paired T1 and T2- The components of the TFCC include: 1. It has an elongated triangular shape with the apex pointing at the radius 5 and consists of the triangular fibrocartilage disc proper along with 1,2: volar components.
However, triangular fibrocartilage complex (TFCC) tear is difficult to be diagnosed on MRI for its intrinsic small and thin structure with complex anatomy. The articular disc 2. volar radioulnar ligament. The term “triangular fibrocartilage complex of the wrist” was first coined by Palmer and Werner in 1981,1who described the cartilaginous and ligamentous structures that bridge the distal radius and ulna, providing articulation with the adjacent lunate and triquetrum. This complex architecture is essential to the function and stability of the wrist.
Gross anatomy. distal fi bers of the interosseous membrane, and the prona- tor quadratus muscle. An understanding of the com- plex anatomy of the TFCC (its three-dimensional struc- ture and insertions) is helpful in identifying lesions that were unknown or little understood before the advent of arthroscopy, especially avulsion of the TFCC at its foveal insertion on the head of the ulna.
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