Perilunate Ligamentous Injury (Lesser Arc Injury)

Carpal Instability, Dissociative (CID)
Radial Carpal Instability	Scapholunate Dissociation	Dissociation Without rotatory instability	Static
			Dynamic
		Dorsal Flexion Instability (DISI) with dissociation	Static
			Dynamic
	Dorsiflexion Instability (DISI) without dissociation
Ulnar Carpal Instability	Triquetrohamate Instability
	Triquetrolunate Instability	Dissociation Without rotatory instability
		Volar Flexion Instability (VISI)
Central Carpal Instability	Perilunate dislocation