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Correlation analysis. (A). Correlation (r=0.761, P<0.001) between radiographically determined and in vivo determined cup coverage. (B). Correlation (r=0.697, P=0.001) between acetabualar cup size and Δ cup coverage defined as the difference between cup coverage determined radiographically versus in vivo as follows:
Δ cup coverage (%)=in vivo cup coverage-radiographical cup coverage.
