Head-Neck Taper Corrosion in Hip Arthroplasty

Figure 3

Illustration to demonstrate the effect that trunnion length has on cone angle with a constant proximal and distal diameter, for example, in a “12/14” taper. With increasing trunnion length (TL1 > TL2), the cone angle decreases (CA1 < CA2) assuming the proximal cone diameter and distal cone diameter remain constant.