• Source: Dorsal intercalated segment instability

Dorsal intercalated segment instability (DISI) is a deformity of the wrist where the lunate bone angulates to the dorsal side of the hand.




Causes


The main cause of DISI is wrist trauma, with or without a fracture:

Scaphoid fracture: bony DISI
Distal radius fracture: compensatory DISI
Malunion of radius fracture: adaptive DISI
Scapholunate ligament instability: ligamentous DISI




References

Kata Kunci Pencarian:

• Dorsal intercalated segment instability
• Scapholunate ligament
• Wrist osteoarthritis
• Disi
• Scapholunate advanced collapse