Fig. 4From: Novel radiologic indices for stem type decision in total hip arthroplasty in patients with metaphyseo-diaphyseal mismatched Dorr A proximal femurRadiographic parameters used to analyze proximal femoral morphology: (A) canal–flare index = a/f (B) canal–calcar ratio = f/b (C) modified morphological cortical index = b/e (D) LT-to-distal ratio-α = b/c (E) LT-to-distal ratio-β = b/dBack to article page