Hip revision surgery can be a major operation. There are multiple causes for your hip replacement needing revision. The commonest cause is loosening and wearing out of the components which may have been put in many years ago. When this happens the patient can experience pain and x-rays would show that there is damage to the bone and it is effectively being eaten away (osteolysis). The effects of osteolysis make the second hip replacement more difficult as there is less bone to put the new hip into. Various techniques can be used to restore bone including bone grafting where bone is taken elsewhere from your skeleton or using donor bone (allograft). Sometimes metal implants are used to replace bone.
It is important that a failing hip is picked up early and therefore if you have new symptoms of pain in a previously replaced hip this should not be ignored. If a loose or worn hip is picked up early it can mean that the revision surgery is technically easier, potentially reducing the risk of complications and ensuring a quicker recovery.
Other problems requiring hip revision surgery are dislocation, infection, previous prosthesis put in for trauma or in a small minority of cases bone fracture around the hip (peri-prosthetic) after an accident or fall.
Mr Kucheria has extensive experience of this sort of surgery and usually will arrange multiple investigations (blood tests, scan and x-rays) before making a decision about whether your old joint needs replacing again he will discuss the options with you. Meticulous planning is required to get the best results.