Table 1 Anderson Orthopaedic Research Institute (AORI) rTKA bone defect classification
From: Bone loss in aseptic revision total knee arthroplasty: management and outcomes
Type | Description |
|---|---|
I | Minor and contained cancellous bony defects that do not affect implant stability |
II | Moderate to severe cancellous and/or cortical bone defects |
| Â | IIA: one tibial plateau or femoral condyle |
IIB: both tibial plateaus or femoral condyles | |
III | Massive cavitary and segmental bone loss of both tibial plateaus and/or femoral condyles with/without ligament or tendon involvement |