Nissen-Lie classification
{{Short description|Colles' fracture classification system}}
Nissen-Lie classification is a system of categorizing Colles' fractures. In the Nissen-Lie classification system, there are seven types of fractures.{{Cite book |last=Zhang |first=Yingze |url=https://www.google.com/books/edition/Clinical_Classification_in_Orthopaedics/dPh6DwAAQBAJ?hl=en&gbpv=1&dq=%22Nissen-Lie+classification%22&pg=PA180&printsec=frontcover |title=Clinical Classification in Orthopaedics Trauma |date=2018-11-19 |publisher=Springer |isbn=978-981-10-6044-1 |language=en}} The classification system was first published in 1939.
Classification
- Type 1: A fracture at the junction of the shaft and distal extremity of the radius (occurs only in children between the age of 1 and 15 years, and is most commonly a greenstick fracture)
- Type 2: Slipping of the epiphysis with dorsal displacement, often with a dorsally avulsed triangular fragment of the radius (occurs in the age range 10-20 years)
- Type 3: Minimal displacement
- Type 4: Dorsal angulation, extra-articular, no comminution
- Type 5: Intra-articular, comminuted
- Type 6: Fractures of the radial styloid
- Type 7: Fractures with dorsal displacement