What is revision surgery for a total hip replacement?

August 26th — admin

What does it mean to have revision surgery for a total hip replacement? My twin sister is having this operation next week. I’m wondering if she needs me to come help take care of her.

Revision tells us that your sister had a primary or index (first) hip replacement procedure already. Revision suggests the need to remove and/or replace one or all of the implant parts. The most common reason for implant revision is loosening of the stem on the femoral (thigh bone) or acetabular (cup or socket) side. This can occur with or without infection. The surgeon removes the old implant and replaces it with a new one. In the case of implants with a polyethylene (plastic) liner, excessive wear can cause tiny flecks of the liner to slough off and enter into the joint. Sometimes the bone around the liner starts to disintegrate.

If the whole implant is removed and exchanged or replaced, it’s like having the surgery all over again. Your sister will have to go through a shortened version of the original rehab program. Having had the surgery already one time, she will be more prepared for the postoperative recovery than she was the first time. She will be able to tell you if she needs extra help for a day or two. There’s always the chance that complications will occur, which could mean a longer recovery time and the need for more help.

For more information on this subject, call The Zehr Center for Orthopaedics at 239-596-0100 or visit www.zehrcenter.com. The information contained herein is compiled from a variety of sources. It may not be complete or timely. It does not cover all diseases, physical conditions, ailments or treatments. The information should NOT be used in place of a visit with your healthcare provider, nor should you disregard the advice of your health care provider because of any information you read in this topic.

Posted in Hips. Tags: , , . No Comments »

Is another surgery necessary after revision surgery didn’t fix a total hip replacement?

January 19th — admin

My wife had a very complicated hip surgery to revise the first hip replacement she got last year. They had to cut off part of her hip bone and then reattach it with wires. X-rays show that the wire didn’t hold the bone in place and it has slid up. We’re trying to decide what to do. Can she avoid another surgery?

The operation to remove a portion of the femur is called a trochanteric osteotomy. This is done to help give the surgeon better access to the hip joint. It’s a procedure used most often in complex cases requiring revision surgery of a total hip replacement already in place.

The trochanteric bone removed is reattached using a wire or cable system of fixation. Sometimes the device breaks or it isn’t tightened enough and the bone migrates (moves).

Trochanteric migration can be a major complication. It causes the hip muscles to lose their mechanical advantage. Walking without pain and/or a limp may become impossible.

The surgeon will use X-rays to measure how much the fragment has moved. Migration less than two centimeters can be watched and monitored carefully. If functional changes are already present, then surgery to stabilize the fixation is usually advised.

For more information on this subject, call The Zehr Center for Orthopaedics at 239-596-0100 or visit www.zehrcenter.com. The information contained herein is compiled from a variety of sources. It may not be complete or timely. It does not cover all diseases, physical conditions, ailments or treatments. The information should NOT be used in place of a visit with your healthcare provider, nor should you disregard the advice of your health care provider because of any information you read in this topic.

Posted in Hips. Tags: , , , , . No Comments »

Will Mom outlive her hip implant?

August 18th — admin

My mother is thinking about having a total hip replacement. She’s 72-years old. The doctor says the new implants last about 15 to 20 years. Does anyone have an implant that lasts longer than that? As she gets older, a second hip replacement may not work so well. We’d like to avoid that if possible.

Long-term studies over 15, 20, and even 25 years are being reported more and more. The revision rate of the earlier implants may turn out to be higher than rates for implants used today. The materials, design, and even the surgery are much improved over even 10 years ago.

One study from the University of Iowa Hospitals and Clinics reported on 357 cases of total hip replacement (THR) done by one surgeon. All patients got the same kind of implant called the Charnley THR. This type of implant was put in using hand-packed cement. Today many implants are cementless or cemented in place with a cement gun for a better fit.

All of the patients still living had the implant at least 25 years. Many of the patients who had died still had the original Charnley implant at the time of their death. About 10 per cent of the patients had to have an implant revision because of infection, dislocation, or implant loosening.

At age 72, your mother’s implant has a good chance of outliving her. Revision or replacement of the first THR may not be needed. The new implant methods reduce pain, increase function, and improve quality of life for most patients.

For more information on this subject, call The Zehr Center for Orthopaedics at 239-596-0100 or visit www.zehrcenter.com.The information contained herein is compiled from a variety of sources. It may not be complete or timely. It does not cover all diseases, physical conditions, ailments or treatments. The information should NOT be used in place of visit with your healthcare provider, nor should you disregard the advice of your health care provider because of any information you read in this topic.

Posted in Hips. Tags: , , , , , , , . No Comments »

More hip replacements means more hip fractures

August 5th — admin

I’ve been a nurse on the med-surg floor for over 20 years. I think we are seeing more and more hip fractures in patients with a hip replacement. What’s causing this increase in numbers?

Several studies have confirmed your observations: the number of femoral (thigh bone) fractures after total hip replacement (THR) is on the rise. There may be several reasons for this change.

First of all, more people are having THRs. Good results from the surgery has also increased the number of people and types of problems that can be helped by THR.

Third, with more people having THRs, the number of revision operations is increasing, too. Patients who have had a THR 20 years ago are still alive and going strong. Increased physical activity decreases the life of the implant. Many of these patients have revision surgery to replace the first implant. Fractures are more likely and more common after revision surgery.

Finally, implant design may be a factor. A recent study from Sweden pointed out the fact that implants with a straight and short stem are more likely to loosen causing dislocation and/or fracture. Complications such as fracture and implant loosening may be further reduced with continued research and improved implant design features.

For more information on this subject, call The Zehr Center for Orthopaedics at 239-596-0100 or visit www.zehrcenter.com.The information contained herein is compiled from a variety of sources. It may not be complete or timely. It does not cover all diseases, physical conditions, ailments or treatments. The information should NOT be used in place of visit with your healthcare provider, nor should you disregard the advice of your health care provider because of any information you read in this topic.

Posted in Hips. Tags: , , , , , , , . No Comments »

How common is revision hip replacement surgery?

August 2nd — admin

Both my parents have had total hip replacements. Both have had to have a second operation on the same hip. Is this a common thing or just a coincidence?

Reoperations after total hip replacement (THR) are not uncommon. The most common reasons for reoperation are loosening of the implant, repeated dislocation, or bone fracture around the implant.

Most patients report minor trauma before bone fracture. Spontaneous fracture (no known cause) is more likely after revision surgery. Revisions are done to repair or replace the primary (first) THR.

Other reasons for reoperation can include nonunion of the fracture or refracture. Sometimes infection or fracture of the implant can occur.

Researchers are collecting data to help sort out who is at risk for implant failure or reoperation. One way to do this is to create a national patient registry. For example in Sweden, anytime someone has a total hip replacement, the surgeon must report information about the case to the Swedish National Hip Arthroplasty Register.

This registry has three separate databases. Each one collects slightly different bits of information. This allows researchers to group data together for easier analysis. Information can be used to identify who has a reoperation, fracture or refracture, or other complications.

Patient selection, implant choice, and experience of the surgeon all seem to be important factors in THR surgery. Your parents’ situation could be the result of one of these factors — or it could indeed be just a coincidence. We still don’t always know how to tell exactly what caused the problem in order to prevent it.

For more information on this subject, call The Zehr Center for Orthopaedics at 239-596-0100 or visit www.zehrcenter.com.The information contained herein is compiled from a variety of sources. It may not be complete or timely. It does not cover all diseases, physical conditions, ailments or treatments. The information should NOT be used in place of visit with your healthcare provider, nor should you disregard the advice of your health care provider because of any information you read in this topic.

Posted in Hips. Tags: , , , , , , . No Comments »
«
»