How long will my hip last?
In time there is a tendency for hip replacements to become loose. The major factor in this process seems to be the wear particles released from the moving components of the new joint ie. from the material of the new ball and socket. In general there is about a 90-95% chance that the hip replacement will continue to function well for 15 years. With the use of new materials such as ceramics and metal on metal bearings it is hoped that these implants will last a good deal longer but only time and further scientific studies will tell.
Would a hip resurfacing be better for me than a total hip replacement?
Hip resurfacing is still a hip replacement in that both the surface of the femoral head and the lining of the socket (acetabulum) is replaced. The major difference is that more of the native bone of the hip is saved in the resurfacing as the femoral neck and the majority of the femoral head is preserved. There is no proven functional difference comparing a hip resurfacing with a more conventional total hip replacement. The potential advantage is that if and when the hip fails, it can be re-done using a conventional type of hip replacement. The follow-up of this type of replacement is considerably shorter than with conventional designs (currently up to about 9 years), therefore we do not really know how long they will last. They are really only suitable for patients who do not have too much deformity of the hip and who have good bone quality. These issues would need to be discussed with your surgeon.
Can I have a minimally invasive hip replacement?
A minimally invasive hip replacement is defined as one where the skin incision is 10cm or less, however what happens under the skin is still quite invasive! There was a vogue for trying to do the replacement through two mini incisions but this technique has largely been abandoned because of a significant complication rate. The concept is attractive and potentially the recovery may be a bit quicker in the first few days but in the longer term no advantage has been shown in terms of hip function. It may well be possible to do your hip replacement through a small incision and this will depend a bit on your size and weight and on the bony deformity of your hip. The most important aspect of hip replacement surgery is to have a replacement that will last a very long time and without complications.
Can I do sport afterwards?
In general there are few restrictions following recovery from a hip replacement. For the first six weeks there will be certain restrictions to allow the soft tissues around the hip to heal and to reduce the risk of dislocation. After that patients can get back to the activities they wish although it is probably unwise to partake in a lot of impact exercise. However, sports such as jogging (in moderation), golf, tennis, skiing are all possible.
content written by Johan Witt Hip othopaedic and trauma surgeon
