Table 2.

Neumann’s Algorithm for Treatment of Patella Fracture, Revised by Matthews.

AO Classification	Treatment Method
A1	Nonoperative
A2	Screw fixation (percutaneous)
A3	Screw fixation (percutaneous)
B1	McLaughlin Cerclage ± screw fixation of distal pole or basket plate
B2	Screw fixation
B2e (elderly)	Consider augmentation (mesh or plate)
B3	Screw fixation and TBW or plate fixation or mesh fixation with tension band wire
B3e	Consider augmentation (mesh or plate)
C1	Screw fixation and TBW/low profile plate
C1e	Consider augmentation (mesh or plate)
C2	Screw fixation and TBW/low profile plate
C2e	Consider augmentation (mesh or plate)
C3	TBW ± Cerclage wiring/low profile plate
C3e	Consider augmentation (mesh or plate)

Abbreviation: TBW, tension band wire.