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Cumulative percent revision of “revision of primary” UKA (excluding infection).
UKA to UKA minor vs. UKA to TKA for 0–1.5 years: HR= 4.8 (3.1–7.5), p < 0.001; for > 1.5 years: HR = 1.8 (0.95–3.6), p = 0.07.
UKA to UKA major vs. UKA to TKA for entire period: HR = 2.6 (1.9–3.6), p < 0.001.
UKA to UKA minor vs. UKA to UKA major for entire period: HR = 1.3 (0.83–1.9), p = 0.3.
Note: adjusted for age and sex.
