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Acetabular Reconstruction Using Multiple Porous Tantalum Augments: Three-Quarter Football Augment.

C H Ansorge¹, M Ohlmeier¹, T M Ballhause¹

¹Department of Joint Surgery, Helios ENDO-Klinik Hamburg, Holstenstrasse 2, 22767 Hamburg, Germany.

Case Reports in Orthopedics

|May 31, 2022

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This study presents a new technique for acetabular bone defect reconstruction in revision hip surgery using tantalum augments. This method successfully addressed a complex defect, leading to good functional outcomes post-surgery.

Area of Science:

Orthopedic Surgery
Biomaterials Science

Background:

Reconstructing large acetabular bone defects in revision hip arthroplasty presents significant challenges.
Uncontained acetabular defects, particularly Paprosky type IIIb, require advanced reconstructive strategies.

Observation:

A 73-year-old female patient with a chronically dislocated total hip arthroplasty exhibited acetabular component migration and iliac pseudoarthrosis.
Radiographic evidence indicated a substantial acetabular bone defect.

Findings:

A novel surgical approach utilizing multiple tantalum augments was employed for anatomic reconstruction of the acetabular defect.
Postoperative management included addressing initial dislocations with an elevated liner, ultimately achieving good functional recovery.

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Implications:

Tantalum augments offer a viable solution for complex acetabular bone defect reconstruction in revision hip arthroplasty.
This technique may improve outcomes for patients with challenging bone loss, despite potential early complications.