Reasons for revision
- Loosening of the implant from the bone
- Wear of the bearing surfaces
- Infection — early or late
- Recurrent dislocation
- Fracture around the implant
- Adverse reaction to wear particles
The operation
Revision surgery is performed under spinal anaesthesia and typically takes around 4 hours, depending on complexity. The existing implants are carefully removed — preserving as much bone as possible — and new specialised revision components are inserted. Bone grafts and metal augments may be required to fill bone loss.
Hospital stay and recovery
- Hospital stay: 2–7 nights depending on complexity.
- Walking aids: crutches or a frame for around 6 weeks.
- Full recovery: several months, with ongoing improvement up to a year.
Outcomes
Around 90% of patients are successfully treated for infection or dislocation problems with appropriate revision surgery. Pain relief and function are usually substantially improved, although results may not equal those of a primary hip replacement.
Risks
Revision hip surgery carries a higher risk profile than primary replacement — infection, bleeding, nerve damage, DVT or pulmonary embolism, dislocation, fracture, leg length discrepancy and cardiac events. These are discussed in depth before any decision to operate.