Revision TKA — Indications & Techniques
Common indications: aseptic loosening, PJI, instability, stiffness, polyethylene wear, periprosthetic fracture, malalignment. Workup: exclude infection (ESR/CRP ± aspiration); quantify bone loss (AORI). Reconstruction: restore joint line, balance gaps; use stems, augments, cones; match constraint to ligament competence. Constraint ladder: PS → CCK → hinge; use minimum needed. Outcomes depend on accurate diagnosis and restoration of alignment/rotation/soft-tissue balance.
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10What is the most common indication for revision total knee arthroplasty (RTKA)?
mcqWhich of the following is a mandatory step before performing revision TKA?
mcqWhat is the recommended serum CRP threshold to indicate a potential periprosthetic joint infection (PJI)?
mcqIn the context of revision TKA, which of the following is true regarding polyethylene wear?
mcqWhat is the primary purpose of using stems and augments in revision TKA?
mcqWhich of the following diagnostic criteria for PJI uses a scoring system that includes serum and synovial mark...
mcqWhat is the significance of the 'constraint ladder' in revision TKA?
mcqWhen assessing for instability in a revision TKA, which factor is NOT typically considered?
mcqWhat imaging modality is most useful for assessing 3D bone defects in revision TKA?
mcqWhich of the following is a rare indication for revising a total knee arthroplasty?