🔍 Key Findings
Population: 9 dogs underwent revision of osteointegrated acetabular cups after total hip arthroplasty (THA)
Revision Indications:
- 7 luxations (5 ventral, 2 craniodorsal)
- 1 femoral stem fracture
- 1 aseptic stem loosening
Implants:
- 8 BFX cups, 1 Helica; all revised to BFX
- 7/9 required a larger cup than original
Cup removal: Required sectioning with a high-speed burr and modular osteotome; removal fragments extracted
Complications:
- 1 recurrent luxation
- 1 low-grade infection with possible metallic debris-associated osteolysis
- 2 femoral fissures managed intraoperatively
Outcomes:
- Good to excellent function in 6/6 dogs available at median 621 days
- Minimal complications with success in re-osteointegration of new cup
Clinical takeaway: Revision of stable, ingrown cups is feasible and offers an alternative to pelvic osteotomies; typically requires upsizing
