Successful cementless cup reimplantation using cortical bone graft augmentation after an acetabular fracture and cup displacement.

Objective: To report repair of a periprosthetic acetabular fracture with concurrent component displacement after cementless total hip arthroplasty (THA).

Study Design: Clinical case report.

Animals: Dog (n=1) with an acetabular fracture after THA.

Methods: Acetabular repair was performed on a highly comminuted periprosthetic acetabular fracture after cementless THA. A bulk, structural corticocancellous autograft from the ipsilateral ilial wing was used for repair and reconstruction of the dorsal acetabular wall before reimplantation of a cementless acetabular component.

Results: Repair of a periprosthetic acetabular fracture with a bulk structural autograft was successful in reconstruction of the dorsal acetabular wall and in reestablishing a stable, functional cementless THA acetabular prosthesis.

Conclusions: Structural corticocancellous autografts from the ilium can be successfully used in repair of periprosthetic acetabular fractures after THA.

Clinical Relevance: Structural corticocancellous grafting from the ilium can be considered as a treatment option for repair of periprosthetic acetabular fractures after THA.