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(A) Mean and 95% confidence intervals of pre-operative and 1 year follow-up MIS. (B). Mean and 95% confidence intervals of pre-operative and 1 year follow-up BP. (C). Mean and 95% confidence intervals of pre-operative and 1 year follow-up CD. MIS: modified Insall–Salvati ratio; BP: Blackburne–Peel index; CD: Caton–Deschamps (CD) index.
