Table 2 Baumgaertner reduction quality criteria

Alignment

Anteroposterior view: normal or slight valgus neck–shaft angle*

Lateral view: less than 20° of angulation

Displacement

Anteroposterior view: less than 4 mm of displacement of any fragment

Lateral view: less than 4 mm of displacement of any fragment

Quality of reduction

Good: both criteria met

Acceptable: only one criterion met

Poor: neither criterion met