Total hip templating using a marker ball (vs. 21% magnification): no difference in accuracy but increase in potential harm

Conclusions: Digital templating using 21% magnification or MB were equally accurate. However, when finer discriminations were made between templating estimates and the final actual size, 21% magnification had better directional accuracy and the advantage of improved clinic efficiency. Using MB, the components tended to be over-estimated, particularly femoral components, which could have a substantial negative impact, especially if the surgeon is trying to match implant with template size.
Source: Current Orthopaedic Practice - Category: Orthopaedics Tags: Special Focus: Resident Research Award Source Type: research