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Case Reports
. 2023 Sep 18:23:101217.
doi: 10.1016/j.artd.2023.101217. eCollection 2023 Oct.

The Use of Calcium Sulfate/Hydroxyapatite Bone Graft Substitute to Restore Acetabular Bone Loss in Revision Total Hip Arthroplasty

Stephen T Duncan  1 , Franco Sabatini  1
Affiliations
Case Reports

The Use of Calcium Sulfate/Hydroxyapatite Bone Graft Substitute to Restore Acetabular Bone Loss in Revision Total Hip Arthroplasty

Stephen T Duncan et al. Arthroplast Today. .

Abstract

Acetabular bone loss is not uncommon when performing revision total hip arthroplasty. This can create a challenge, especially on the acetabular side. In the present report, our patient presented with aseptic loosening of the acetabular component. The patient had a Paprosky IIIA acetabular defect that was reconstructed with stacked acetabular augments in addition to a highly porous acetabular cup. The remaining bone defects were addressed through the use of a calcium sulfate/hydroxyapatite bone graft substitute. We set out to describe how to reconstruct severe acetabular bone loss with a combination of acetabular augments in addition to an injectable bone graft substitute as a novel method to address a complex clinical scenario.

Keywords: Acetabular bone loss; Bone graft substitute; Calcium sulfate; Hydroxyapatite; Revision total hip arthroplasty.

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Figures

Figure 1
Figure 1
AP hip radiograph with aseptic loosening of the acetabular cup. AP, anteroposterior.
Figure 2
Figure 2
CT coronal plane cuts demonstrating medial bone loss to the anterior column. CT, computed tomography.
Figure 3
Figure 3
CT axial plane cuts demonstrating medial bone loss to the anterior column. CT, computed tomography.
Figure 4
Figure 4
AP pelvis radiograph demonstrating the stacked acetabular augments with revision acetabular cup. There is bone graft to the medial anterior column defect and posterior column defect. AP, anteroposterior.
Figure 5
Figure 5
AP hip radiograph demonstrating the stacked acetabular augments with revision acetabular cup. There is bone graft to the medial anterior column defect and posterior column defect. AP, anteroposterior.
Figure 6
Figure 6
AP pelvis radiograph at 1 year postoperatively demonstrating incorporation of the bone graft. AP, anteroposterior.
Figure 7
Figure 7
False profile radiograph at 1 year postoperatively demonstrating incorporation of the bone graft.
Figure 8
Figure 8
AP pelvis radiograph at 2 years postoperatively demonstrating incorporation of the bone graft. AP, anteroposterior.
See this image and copyright information in PMC

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