Nov 28, 2024 · Dorsal intercalated segment instability (DISI) is a form of carpal instability featuring dorsal tilt of the lunate. It occurs mainly after the disruption of the s capholunate ligament and …

Mar 9, 2025 · Scapholunate Ligament Injury is a source of dorsoradial wrist pain with chronic injuries leading to a form of wrist instability (DISI deformity). Diagnosis is made with PA wrist …

The SL angle is an indicator of dorsal intercalated segment instability deformity (DISI). The SL angle goes between: [1] - A line through the long axis of the scaphoid bone. - A line …

Given our study's findings, 4DCT appeared as a quantitative relevant tool for the evaluation of DISI deformity in cases of SLI, including for patients presenting with questionable initial …

These data help to define the limits of normal (and abnormal) and define the boundaries of DISI and PISI deformities of the wrist. In general, DL:PL ratios greater than 1.0 are noted with DISI …

Triangular configuration of the lunate and widening of the scapholunate interval. The lateral projection demonstrates dorsal tilt of the lunate with increased scapholunate angle. The …

Dorsal intercalated segment instability (DISI) refers to a condition where there is instability in the dorsal intercalated segment of the wrist, which can result in pain, limited range of motion, and …

Figure 42-1 Mean RLA (confidence intervals 95%) for the 5 difference sequences. Black dotted lines represent IWIW definition of DISI (15° lunate extension). Red dotted lines represent an …

Excessive dorsiflexion (dorsal tilting) of the lunate on a lateral wrist radiograph can be an important sign of carpal injury. Lunate dorsiflexion is a well-recognized sign of an intercarpal …

Created as the 442nd Regimental Combat Team when it was activated 1 February 1943, the unit quickly grew to its fighting complement of about 4,000 men by April 1943, and an eventual …