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Lower survivorship rates seen after TKA for post-traumatic vs osteoarthritic knees
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Patients who underwent total knee arthroplasty following a periarticular fracture had worse overall revision-free survival at 20 years compared with patients who underwent the procedure for osteoarthritis, according to study results.
Researchers conducted a retrospective review and compared 19,641 patients who underwent primary total knee arthroplasty (TKA) for osteoarthritis (OA) with 531 patients with a history of distal femur or proximal tibia fractures who also underwent TKA. Investigators followed patients for a mean of 6 years through either regular clinical visits or via phone or mail survey. Revision surgery, infection and the need for additional surgery were the primary outcomes of the study.
Results showed risks for revision TKA, infection and complications were significantly increased in the post-traumatic group compared with the OA group. Looking at 20-year survival as free of revision, investigators found the post-traumatic group had 67% survival vs. 75% for the OA group. Overall survival, as deemed as free of an additional procedure, at 20 years was 55% in the post-traumatic group vs. 70% in the OA group. By 20 years, the infection-free survival for the post-traumatic group was significantly worse compared with that of the OA group (91% vs. 96%). ‒ by Monica Jaramillo
Disclosures: Houdek reports no relevant financial disclosures. Please see the full study for a list of all other authors’ relevant financial disclosures.
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