Researchers used the Osteoarthritis Initiative five-year datasets. A total of 167 persons with isolated TKA and 300 persons with matched symptomatic knee OA but no TKA were studied.
The study found that, during the two years before a TKA procedure OA symptom worsening occurred in 27.4 percent of the surgical knees compared to 6.6 percent of matched non-surgical knees.
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