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. 2010 Dec 15;89(1):34–41. doi: 10.1159/000322276

Fig. 2.

Fig. 2

Evolution of bone fiducial markers used in this report. a Original externalized bone post and imaging cap – Acustar™ (Z-Kat Inc., Hollywood, Fla., USA) bone post and cap. b Internalized bone anchors with detachable post and imaging cap – Way-Point (FHC Inc.) bone anchors with temporary externalized posts and Acustar cap. c Internalized bone anchors with detachable post and imaging ball – Acustar II. d Internalized anchors only – WayPoint™ bone anchors, which are presently used for all MTP cases at our institution.