Stephen Duncan
American banker
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Jul 31, 2026
Complex primary THA with AA (S+N Surgeon Roundtable)
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44:10

Joe SchwabHOST
Stephen, uh, we're gonna swing back to the acetabular discussion for just a minute, and I wanna know when you're dealing with a complex primary or maybe somebody with compromised bone quality, what are you doing to avoid over-reaming or maybe unintended drift in your acetabular orientation while still trying to achieve your stable acetabular fixation?

Stephen DuncanGUEST
Yeah, I mean, in large parts, we used to start, you know, eight sizes below the templated cup size.

Stephen DuncanGUEST
And as we've migrated along, we've learned probably use a bigger reamer and fewer of them to help kinda avoid over-medialization.

Stephen DuncanGUEST
Usually, we'll measure the head size just to confirm, and usually you're-- if you measure like a fifty, you're putting a fifty-four cup in.

Stephen DuncanGUEST
Um, and so what we'll do is we'll park fluoro over the hip itself and do controlled medialization.
8 MINS LATER

Joe SchwabHOST
In selected high-risk primaries for you, um, where might a dual mobility option like OR3O fit as your preferred choice or maybe a targeted choice?