These fractures are nondisplaced, with a stable cup.
They are classified as Della Valle IA.
Della Valle IA acetabular fracture occurs intraoperatively during hip arthroplasty.
Further information about Della Valle classification can be found in the publication: Della Valle CJ, Momberger NG, Paprosky WG. Periprosthetic fractures of the acetabulum associated with a total hip arthroplasty. Instr Course Lect. 2003;52:281–290.