Authors of section


Derek Donegan, Michael Huo, Michael Leslie

Executive editor

Michael Baumgaertner

Open all credits

Pelvic discontinuity

General considerations

A pelvic discontinuity is due to chronic conditions where acetabular bone stock has been diminished. This can be classified as a Della Valle V fracture.

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.

Della Valle V acetabular fracture


  • Trauma in the presence of major bone defects either from previous reaming or pelvic osteolysis
  • Migration of the loose cup resulting in the disruption of column stability
  • Complication from cup insertion during surgery
  • Complication from cup removal of a loose or a well-fixed cup.
  • Type V fractures are directly related to bone loss due to pelvic irradiation.

Clinical signs

  • Pain
  • Leg length inequality due to cup migration
  • Hip dislocation due to cup migration


  • Regular radiographs including Judet views
  • CT scan
Go to indication