Revision Knee
A 70-year-old man requires revision TKA for aseptic loosening 14 years after primary surgery. Intraoperative findings show a tibial defect with a peripheral rim intact but a central contained cavitary defect of 2cm depth. The femur shows a medial condylar defect affecting 50% of the condyle but with an intact lateral condyle and metaphyseal bone. Regarding the Anderson Orthopaedic Research Institute (AORI) bone defect classification:
Mark each as TRUE or FALSE
The AORI classification grades bone defects in revision TKA as Type 1 (intact metaphyseal bone with ...
Type 1 defects have minor bone loss with intact metaphyseal segments that do not compromise componen...
AORI Type 1 defects always require stemmed components; Type 2A defects cannot be managed with metal ...
Type 2A defects can be reconstructed with modular metal augments (blocks, wedges), metaphyseal cones...
Type 3 defects have extensive metaphyseal bone loss affecting ligament attachments and requiring add...
Answer the questions to see explanations
Click T (True) or F (False) for each option