Review Article
The Use of Structural Allograft in Primary and Revision Knee Arthroplasty with Bone Loss
Table 1
Classification of femoral and tibial bone loss [
1].
(a) AORI femoral bone loss classification |
| AORI femur grade | Deficit | MCL/LCL | Bone reconstruction |
| F1 | Intact metaphyseal bone | Intact | Cement or particulate graft | F2a | Metaphyseal loss single condyle | Intact | Cement or metal augment | F2b | Metaphyseal loss both condyles | Intact | Cement, metal augment or structural graft | F3 | Deficient metaphysis | Compromised | Structural allograft or segmental replacement |
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|
(b) AORI Tibial Bone Loss Classification |
| AORI tibial grade | Deficit | MCL/LCL | Bone reconstruc- tion |
| T1 | Intact metaphyseal bone | Intact | Cement or particulate graft | T2a | Metaphyseal loss med or lat Plateau | Intact | Cement or metal augment | T2b | Metaphyseal loss and lat plateau | Intact | Cement, metal augment or structural graft | T3ā | Deficient metaphysis | Compromised | Structural allograft or segmental replace- ment |
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Possible extensor mechanism compromise.
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