This retrospective case series from Mayo Clinic describes the surgical technique and early outcomes of porous tantalum modular acetabular augments used to support uncemented hemispheric cups in 16 revision hips with severe acetabular bone loss (Paprosky 2A–3B) that precluded standard hemispheric cup reconstruction alone.
When you encounter a Paprosky 3A/3B acetabular defect at revision and a hemispheric cup cannot achieve adequate host bone contact, porous tantalum modular augments offer an intraoperatively adaptable alternative to structural allograft or custom triflange components — fixed to host bone through the augment screw holes, then cemented to the revision shell to unify the construct.
Keep pelvic discontinuity on your differential in any revision with Zone III radiolucency developing postoperatively, even when the superior construct appears well fixed.
This retrospective case series from Mayo Clinic describes the surgical technique and early outcomes of porous tantalum modular acetabular augments used to support uncemented hemispheric cups in 16 revision hips with severe acetabular bone loss (Paprosky 2A–3B) that precluded standard hemispheric cup reconstruction alone.
When you encounter a Paprosky 3A/3B acetabular defect at revision and a hemispheric cup cannot achieve adequate host bone contact, porous tantalum modular augments offer an intraoperatively adaptable alternative to structural allograft or custom triflange components — fixed to host bone through the augment screw holes, then cemented to the revision shell to unify the construct.
Keep pelvic discontinuity on your differential in any revision with Zone III radiolucency developing postoperatively, even when the superior construct appears well fixed.