This national database study compares the epidemiology of revision hip versus revision knee replacement. Using the Nationwide Inpatient Sample, it analyzed 235,857 revision THAs and 301,718 revision TKAs from 2005 to 2010. The goal was to define how failed THA and failed TKA differ in demographics, failure modes, illness severity, and cost.
When you see a failed knee, think infection first; when you see a failed hip, think dislocation first. The two joints fail for different reasons. That mental model shapes your workup. For the failed knee, run aggressive infection labs and aspirate before assuming a mechanical cause. For the failed hip, scrutinize component position and soft-tissue tension.
The severity-of-illness data reframes revision THA as a higher-acuity operation. These patients are older and carry more comorbidities, so medical optimization and realistic risk counseling matter more. The economic message is practical for any health system. Lumping hip and knee revisions into one service line underestimates the hip's true burden per case.
Remember this is descriptive administrative data. Coding variability and the lack of a formal registry limit precision, so treat the exact percentages as trends rather than fixed truths.
This national database study compares the epidemiology of revision hip versus revision knee replacement. Using the Nationwide Inpatient Sample, it analyzed 235,857 revision THAs and 301,718 revision TKAs from 2005 to 2010. The goal was to define how failed THA and failed TKA differ in demographics, failure modes, illness severity, and cost.
When you see a failed knee, think infection first; when you see a failed hip, think dislocation first. The two joints fail for different reasons. That mental model shapes your workup. For the failed knee, run aggressive infection labs and aspirate before assuming a mechanical cause. For the failed hip, scrutinize component position and soft-tissue tension.
The severity-of-illness data reframes revision THA as a higher-acuity operation. These patients are older and carry more comorbidities, so medical optimization and realistic risk counseling matter more. The economic message is practical for any health system. Lumping hip and knee revisions into one service line underestimates the hip's true burden per case.
Remember this is descriptive administrative data. Coding variability and the lack of a formal registry limit precision, so treat the exact percentages as trends rather than fixed truths.