Total knee arthroplasty (TKA) is a highly successful procedure, but as annual volumes are projected to reach nearly 3.5 million by 2030, the healthcare landscape is shifting its focus. The Centers for Medicare and Medicaid Services (CMS) is aggressively moving toward value-based care, making the collection of Patient-Reported Outcome Measures (PROMs) mandatory for eligible primary TKA patients starting in 2026. This initiative aims to enhance shared decision-making and quality measurement, directly tying hospital payments to patient-perceived improvement.
It is highly likely that this mandatory PROM collection will eventually extend to revision TKA (rTKA) procedures. This presents a massive structural challenge for revision surgeons. Historically, literature has reported mixed results when comparing PROMs for rTKA with those for primary TKA, with many studies concluding that revision surgery leads to worse outcomes. However, grouping all revision diagnoses together obscures the complex reality of these procedures. As CMS establishes criteria for Minimal Clinically Important Difference (MCID), Substantial Clinical Benefit (SCB), and Patient-Acceptable Symptom State (PASS) thresholds, it is critical to understand which specific revision diagnoses have the highest propensity for clinical improvement. If reimbursement is tied to these metrics, treating challenging diagnoses could financially penalize surgeons.
