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This figure shows the proportion revision-free for dislocation from 1 year after THAs by bearing surface adjusted for femoral head size > 28 mm and age ≥ 65 years. CC = ceramic-on-ceramic; CP = ceramic-on-PE; MM = metal-on-metal; MP = metal-on-PE. CC showed the lowest revision rate (100 components/year 0.02; CI, 0.00–0.12).
