Injuries of the scapholunate and lunotriquetral ligaments as well as the TFCC in intra-articular distal radius fractures. Prevalence assessed with MDCT arthrography

Abstract

The C-shaped SLIL is built of dorsal, middle and palmar segments. In iaDRF, major SLIL injuries are associated in 8.6% of the cases. In iaDRF, the SLIL remains intact in 68.3% of the cases. IaDRF and SLIL ruptures can comprehensively be depicted with MDCT arthrography. A three-compartment approach is recommended to assess intrinsic ligaments and the TFCC.

Advances in MRI around metal

“…While small scaphoid screws may be imaged without major limitations, more complex hardware such as the frequent palmar ORIF for distal radius fractures causes more severe artifacts even when using advanced techniques. Concomitant injuries to cartilage, ligaments or triangular disc as well as carpal injuries or posttraumatic osteoarthritis may be depicted on MARS imaging …”

Imaging of Carpal Instabilities

“…2e). Compared to arthroscopy, direct MR arthrography has a sensitivity and specificity of more than 90 % each [13][14][15][16][17]. Despite being relatively easy to conduct, MR arthrography of the wrist remains a specialized procedure that is not performed at many centers.…”

“…In the presence of a scaphoid fracture/nonunion, the two scaphoid bone fragments can be displaced with respect to each other [26]. CID is by far the most common form of carpal instability with scapholunate dissociation being the most frequent pathoanatomical correlate [13,27]. The lunate as an intercalated and potentially unstable member of the carpus can present different forms of misalignment.…”

“…Compared to SLD, LTD is a rare condition [4,13,14]. Injuries of the lunotriquetral ligament (LTL) occur through axial trauma to the pronated wrist, often associated with perilunate dislocation injuries.…”

Intrinsic carpal ligaments on MR and multidetector CT arthrography: comparison of axial and axial oblique planes

“…The scapholunate and lunotriquetral interosseous ligaments are the most important intrinsic ligaments of the wrist and also those most prone to traumatic injury [1,2]. Tears of these intrinsic ligaments may lead to pain and carpal instability.…”