(C) Contrast enhancement in the zones of the kissing marrow oedema. (A) PA plain radiograph; (B) Coronal SE PD-WI FS; (C) Coronal SE T2-WI FS; (D) Coronal 2D-GRE; (E) Coronal SE T2-WI FS; and (F) PA plain radiograph.
(A) Widening of the scapholunate joint space on a Schneck I view. (C) Juxta-articular subchondral band shaped marrow oedema. (E) Juxta-articular band shaped kissing marrow oedema.
The merit of each imaging modality is briefly mentioned. Secondary Abutment Syndromes of the Wrist in Trauma: A Pictorial Essay. The aim of this pictorial review is to present an overview of SAS and to highlight the role of imaging.
The wrist is a complex structure of cartilaginous joints with little intrinsic stability, but mainly relies on soft tissue constraints from various ligaments.
(A) Coronal SE T1-WI; (B, C) Coronal 3D-GRE; (D, E) PA plain radiographs; and (F) Coronal SE PD-WI FS.
(B) Ulnotriquetral abutment with sclerotic bordered neoarticulation.
(C–E) Ulnolunate abutment with chondromalacia at the ulnar border of the lunate bone (D, vertical arrow), subchondral cyst (D, oblique arrow), and bone marrow oedema centered at the ulnar side of the lunate bone (E).], creating a reversed status compared to ulnar abutment (ulna approaches carpus).
(F) subchondral erosions at the most proximal part of the radial sigmoid notch. (A, E) Coronal SE T1-WI; (B, F) Coronal SE PD-WI FS; (C) Sagittal 3D-GRE; (D) PA plain radiograph; and (G) Coronal SE T1-WI FS with gadolinium.
(A–C) Neoarticulation in the center of the ulnar styloid process, surrounding marrow oedema, (B) and juxta-articular cysts (arrows) (B, C).