What happens if a hip replacement dislocates?

My mother fell and dislocated her new hip replacement. They took her back into surgery and put the joint back in place. She’ll be going to a step-down transition unit. What should we expect for a prognosis? Will it hold? What happens if it doesn’t?

Dislocation is every patient’s fear after getting a new hip replacement. The surgeons call it instability. No matter what name you give it, the problem is troublesome for the patient and a complex challenge for the surgeon. Conservative (nonoperative) care is usually tried first. Once the hip is back in the socket, a brace may be applied and the patient is sent to physical therapy.

Not all surgeons use bracing in these situations. If they do, the brace used is called an abduction brace. It holds the hips apart and in a neutral position (not turned in or rotated out). The physical therapist will help your mother learn how to move safely while strengthening the muscles around the hip.

A special focus of treatment is to restore normal joint proprioception (sense of joint position) and kinesthesia (awareness of movement). Balance training is also very important. Before discharging her to home, the therapist will interview the family to find out what kind of changes need to be made at home. For example, throw rugs will have to be removed, additional lighting (especially for at night) may be needed, grab bars installed in and around the bathroom, and so on.

If a conservative approach doesn’t work and the hip dislocates again and again, then surgery may be needed. The surgeon may have to tighten up loose tissue and restore a balance to soft-tissue tension on all sides of the hip joint. If the implant is improperly positioned, it must be removed and realigned. The surgeon may need to replace the femoral head with a larger one. The goal is to prevent a recurrent (second) hip dislocation.

The good news is that only 10 per cent of patients who dislocate the hip after receiving a total hip replacement will dislocate it a second time. Your surgeon and the rehab team will help you navigate through this difficult time. Don’t hesitate to bring up your concerns and questions. They have knowledge of your mother’s health and hip condition that they can draw on to provide you with answers.

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.

How to improve your balance after hip replacement surgery

I fractured my hip two years ago and had to have a hip replacement. I did the whole rehab thing and came out okay. I notice I’m still a little tippy from time to time — I have trouble keeping my balance. Is there anything I can do to improve my balance? I do work out at the gym (on the exercise equipment) three to four times a week.

It’s not uncommon to have strength differences from side-to-side after a hip fracture. A strength-training program may help. But even more importantly, a balance-training program is needed. Many times, strength-training is done in the seated position. This does not challenge the balance system, which is what is needed to improve balance. Improving balance also improves mobility and prevents falls that can lead to life-threatening or disabling fractures.

You can do some simple things to begin challenging and improving your balance. Stand on one foot and practice standing balance. At first you may need to hold on to a chair or countertop to avoid losing your balance and falling. Keep your pelvis level (don’t let one side drop down). Doing balance exercises in front of a mirror can help. Gradually increase the length of time you can stand on one leg without putting the foot down. You can do these standing balance exercises when you are standing in line at the store, while on the phone, or even while brushing your teeth.

Combining balance activities with strength training is important. For example, while balancing on one leg, swing your free leg out to the side and back to midline. Do this 10 to 12 times before switching to the other side. This exercise targets the hip and buttock muscles for good pelvic stability needed for balance. Your public library may have some good videos (or DVDs) with a home-based exercise program to improve balance.

If you need more specific help, see a physical therapist. The therapist can assess your individual needs and show you a home program tailored to your needs. With occasional visits, the therapist can progress you through the program safely and effectively.

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.

I had an ACL-repair about a month ago. I’m getting my motion back nicely but I still can’t do all the things I expected by now. Is this normal?

I had an ACL-repair about a month ago. I’m getting my motion back nicely but I still can’t do all the things I expected by now. Is this normal?

Getting knee motion back after surgery is called mechanical recovery. Being able to perform your daily activities or get back to sports is referred to as functional recovery. What you are noticing is the lag between mechanical and functional recovery.

Such a difference is fairly common. There are many possible reasons for this. Regaining motion is just one part of recovery. There’s also muscle strength and joint position sense (proprioception) to consider. Your rehab program will include exercises to help with motion, strength, and proprioception.

Your doctor and your therapist should be able to give you some idea of what to expect over the next weeks to months. They will likely base their predictions on your age, condition before surgery, and compliance with rehab. They also have the advantage of seeing the results of many patients who have come and gone before you.

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.

Missteps are not a vision problem

I notice as I get older that I seem to misstep when climbing unfamiliar steps or stepping down off curbs. My vision is perfectly fine. The problem seems to be my knees. What could be causing this?

As we all know, there are many changes that occur with aging. Overall posture starts to change. We aren’t as stable in the upright position as we once were. Around the knee the quadriceps muscle strength is less. Aging often brings arthritic changes that affect the knee.

At the same time there is a reduced amount of joint position sense. Position sense (knowing where the joint is in space) is called proprioception. Scientists aren’t sure what comes first, the arthritis or the decreased proprioception.

It’s even possible that arthritic and disc changes in the neck can lead to changes in knee proprioception. One study has shown that patients with pressure on the spinal cord in the neck have altered knee proprioception. Another study confirms that patients with arthritis in one knee have decreased joint position sense in the other knee.

More study is needed to sort these factors out. In the meantime, make an appointment with your family doctor. It might be a good idea to rule out anything more serious going on and get a baseline. You may just need a conditioning or strengthening program.

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.

Is a return to sports six months after ACL reconstruction possible?

I’m scheduled to have an ACL reconstruction in two weeks. The doctor thinks I can get back to playing sports within six months. Will I have my full function by then?

There are many parts to recovery after ACL reconstruction. Rehab can move forward quickly if there aren’t any complications and the joint is mechanically stable. Your doctor and your physical therapist will help you know when the time is right to start each phase of your rehab program.

Studies show the joint’s sense of position, called proprioception, comes back slowly over the first nine to 12 months. Most rehab programs focus on balance and proprioception during this time. Strength training and flexibility are also important.

Agility training to restore functional stability comes in later phases of rehab. You probably won’t be 100 percent at six months but if all goes well, you’ll be safe to resume sports. Follow your doctor’s advice carefully for the best long-term results.

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.

Arthritis in knee may cause a misstep

I have severe osteoarthritis in my left knee. I notice sometimes I misjudge how far to extend my knee when stepping off a curb. Is that caused by the arthritis?

The sense of joint position is called proprioception. Research shows that proprioception is altered with osteoarthritis. The more severe the patient’s symptoms, the longer it takes for the knee to register its position.

Scientists aren’t sure if the arthritic changes cause the change in joint position sense or the other way around. There could be other causes for your problem such as loss of joint motion and muscle weakness. It might be a good idea to have this checked out before a misstep causes a serious problem.

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.

Knee injuries more common in women. Is a sixth sense to blame?

I hear knee injuries are more common in women than men. If that’s true, why are most knee studies just on men?

It’s true studies show female athletes are four to six times more likely to injure the knee. One factor may be the difference in proprioception between men and women. Joint proprioception is the ability to sense joint position.

Fatigue of the leg or overall body fatigue may affect proprioception. Men seem to be affected by this more than women. This factor may help explain injuries in men. Some other mechanism of injury may be important for women.

Researchers get a better picture of results by studying just men or just women instead of a mixed group. Both kinds of studies are underway.

Injury to one shoulder affecting the other?

I injured my left shoulder in a hang gliding accident. It’s odd, but I feel as if my right shoulder is affected by my left shoulder problems. Is this possible? The right shoulder just doesn’t seem to move as smoothly as before the accident.

Of course it’s possible some minor damage occurred in the right shoulder at the time of the accident. Perhaps an injury is present but undiagnosed. Be sure and ask your doctor to check this for you.

It is possible that you are experiencing a change in the joint position sense. This is the ability of the joint to tell where it is in relation to the body. It’s called proprioception. Proprioception also tells the joint where it is as it moves.

Proprioception is regulated centrally by the nervous system. If one side is injured, the other side is also affected. Usually patients aren’t aware of any difference, but testing reveals the change.

A recent study from Germany suggests the shoulder is able to regain its own sense of joint position after surgery to repair the injury. In fact, even the proprioception in the uninjured arm improves. Researchers aren’t sure why this happens, but future studies are planned.

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. For more information on this subject, visit www.zehrcenter.com.