Translation between the Neer- and the AO/OTA-classification for proximal humeral fractures: do we need to be bilingual to interpret the scientific literature?

Table 1 Studies with more than 100 proximal humeral fractures classified according to both the AO/OTA- and the Neer-classification

Study	Fractures (n)	Included fractures	Setting	Data obtained
Bahrs^18,19	780	All fracture patterns	Register	yes
Bartsch²⁰	102	Neer IV, V, and VI	Locking plate osteosynthesis	no
Kettler²⁶	255	Displaced fractures	Locking plate osteosynthesis	yes
Hirschmann²⁵	119	Displaced fractures	Locking plate osteosynthesis	yes
Solberg²⁸	122	Three- and four-part fractures	Locking plate versus HA	yes
Brunner²¹	158	Displaced fractures	Locking plate osteosynthesis	no
Dietrich²³	111	Three- and four-part fractures	Locking plate versus HA	no
Pelegri²⁷	252	All fracture patterns	Register	no
Gumina²⁴	227	Non-operatively treated	Observer study	yes
Court-Brown²²	1027	All fracture patterns	Register	yes

ISSN: 1756-0500