This large matched cohort study quantifies the actual risk of total knee arthroplasty after operatively treated tibial plateau fracture. It compares 8,426 fracture patients to 33,698 matched controls over up to 10 years of follow-up. The central question: how often does tibial plateau ORIF actually lead to TKA, and who is most at risk?
A common justification for using a single midline incision for bicondylar tibial plateau fractures has been the expectation of high TKA conversion rates — the logic being to simplify future arthroplasty exposure. This paper dismantles that argument with population-level data.
With a 10-year TKA rate of only 7.3% overall and 11% even after bicondylar fractures, optimizing soft-tissue handling at the index fixation is the right priority. Do not compromise wound biology now to prepare for an arthroplasty that 9 out of 10 patients will never need.
When counseling a patient after tibial plateau ORIF, the key risk modifiers are: Older age. Each additional year adds 3.4% relative TKA risk Bicondylar pattern. 53% higher hazard than unicondylar High comorbidity burden. More than doubles TKA risk
The TKA risk also accumulates slowly. At 2 years post-ORIF it is nearly identical to the general population. Reassure younger, healthier patients with unicondylar fractures that their risk of needing a knee replacement within the next decade is low. But schedule long-term follow-up, because the curves diverge meaningfully by year 5.
This large matched cohort study quantifies the actual risk of total knee arthroplasty after operatively treated tibial plateau fracture. It compares 8,426 fracture patients to 33,698 matched controls over up to 10 years of follow-up. The central question: how often does tibial plateau ORIF actually lead to TKA, and who is most at risk?
A common justification for using a single midline incision for bicondylar tibial plateau fractures has been the expectation of high TKA conversion rates — the logic being to simplify future arthroplasty exposure. This paper dismantles that argument with population-level data.
With a 10-year TKA rate of only 7.3% overall and 11% even after bicondylar fractures, optimizing soft-tissue handling at the index fixation is the right priority. Do not compromise wound biology now to prepare for an arthroplasty that 9 out of 10 patients will never need.
When counseling a patient after tibial plateau ORIF, the key risk modifiers are: Older age. Each additional year adds 3.4% relative TKA risk Bicondylar pattern. 53% higher hazard than unicondylar High comorbidity burden. More than doubles TKA risk
The TKA risk also accumulates slowly. At 2 years post-ORIF it is nearly identical to the general population. Reassure younger, healthier patients with unicondylar fractures that their risk of needing a knee replacement within the next decade is low. But schedule long-term follow-up, because the curves diverge meaningfully by year 5.