Tuesday, November 18, 2014
Saturday, October 4, 2014
Understanding how your knee works
There are three bones in your knee joint. Your thighbone (femur) sits on top of your shinbone (tibia). When you bend or straighten your knee, the rounded end of your thighbone rolls and glides across the relatively flat upper surface of your shinbone. The third bone is often called the kneecap (patella), which is attached to the muscles, allowing you to straighten your knee. Your kneecap provides leverage and reduces strain on these muscles.
In a healthy knee joint, the surfaces of these bones are very smooth and covered with a tough protective tissue called cartilage.
Ligaments (another type of soft tissue) lie along the sides and back of the knee, holding the bones of the knee joint in place. These ligaments work with the muscles, bones and tendons so that you can bend and straighten your knee. Fluid-filled sacs (bursae) cushion the area where skin or tendons glide across bone. The knee also has a lining (synovium) that secretes a clear liquid called synovial fluid. This fluid lubricates the joint, further reducing friction and making movement easier.
As you might expect, there are many different reasons why you could be feeling knee pain, including injury, infection, and arthritis.
Osteoarthritis (OA)
The most common cause of knee pain is osteoarthritis (OA), a degenerative joint disease that causes the cartilage in your joints to break down. When that layer of cartilage — which is meant to “cushion” the joints and protect the surface of the bones — is damaged or worn away, your bones grind against one another, and that grinding hurts. You can feel it climbing stairs, working in the garden, or just bending your knees to sit. It may even keep you up at night.OA can damage the entire knee or be limited to just one side of the knee. If you experience pain only on one side, or compartment, of your knee, your doctor may diagnose you with unicompartmental OA.
If you experience pain under the knee cap, your doctor may diagnose you with patello-femoral OA. This is not uncommon, as studies have shown that about one out of every 10 patients over the age of 40 have patello-femoral disease.
The factors leading to the development and progression of OA include aging, obesity, joint injuries, and a family history of arthritis (genetics). Although there is no cure, early diagnosis and treatment are crucial in slowing or preventing more damage to your joints.
Rheumatoid arthritis
In rheumatoid arthritis, the synovium (lining of the joint) becomes inflamed. This inflammation causes chemicals to be released that thicken the synovium and damage the cartilage and bone of the affected joint. This inflammation of the synovium causes pain and swelling.The good news about rheumatoid arthritis in the knee is that it can be treated. Rheumatoid arthritis is a disease that typically worsens over the years, so it is common for treatment to involve more than one approach and to change over time. For some people, nonsurgical treatments such as lifestyle changes, medications, and walking aids help alleviate the pain. For others, replacing lost cartilage with tissue grafts may help restore normal function. And for many, knee replacement surgery may be the only long-term solution. Together, you and your doctor can determine the best treatment options for you.
Monday, September 22, 2014
Sunday, August 3, 2014
SATNAM HOSPITAL How Do I Know If I Need Knee Replacement Surgery?
When should I talk to my doctor about knee replacement surgery?
That's a question you and your orthopedic surgeon will have to answer together. But when knee pain is so bad it actually interferes with the things you want or need to do, the time may be right.Knee replacement may be an option when nonsurgical interventions such as medication, physical therapy, and the use of a cane or other walking aid no longer help alleviate the pain. Other possible signs include aching in the joint, followed by periods of relative relief; pain after extensive use; loss of mobility; joint stiffness after periods of inactivity or rest; and/or pain that seems to increase in humid weather.
Your primary-care doctor may refer you to an orthopedic surgeon who will help you determine when/if it's time for knee surgery and which type of knee surgery is most appropriate. Your surgeon may decide that knee replacement surgery is not appropriate if you have an infection, do not have enough bone, or the bone is not strong enough to support an artificial knee.
Doctors generally try to delay total knee replacement for as long as possible in favor of less invasive treatments. With that being said, if you have advanced joint disease, knee replacement may offer the chance for relief from pain and a return to normal activities.
How common are knee replacements?
Knee replacement is a routine surgery performed on more than 600,000 people worldwide each year. More than 90% of people who have had total knee replacement experience an improvement in knee pain and function.1How do I get a diagnosis?
To diagnose your condition, an orthopedic surgeon will perform a thorough examination of your knee, analyze X-rays, and conduct physical tests. You will be asked to describe your pain, if you suffer from other joint pain, and if you have endured past injuries that may have affected your current knee condition. It may be helpful to keep a record of your knee pain to share with your doctor. Your knee joints will then be tested for strength and range of motion through a series of activities, which include bending and walking. X-rays of your knee joint will indicate any change in size or shape, or any unusual circumstances.Signs that it might be time for a knee replacement:
- Your pain persists or recurs over time
- Your knee aches during and after exercise
- You’re no longer as mobile as you’d like to be
- Medication and using a cane aren’t delivering enough relief
- Your knee stiffens up from sitting in a car or a movie theater
- You feel pain in rainy weather
- The pain prevents you from sleeping
- You feel a decrease in knee motion or the degree to which you’re able to bend your knee
- Your knees are stiff or swollen
- You have difficulty walking or climbing stairs
- You have difficulty getting in and out of chairs and bathtubs
- You experience morning stiffness that typically lasts less than 30 minutes (as opposed to stiffness lasting longer than 45 minutes, a sign of an inflammatory condition called rheumatoid arthritis)
- You feel a “grating” of your joint
- You’ve had a previous injury to the anterior cruciate ligament (ACL) of your knee
SATNAM HOSPITAL
Once you’ve undergone rehab and you’re back on your feet, your life
will begin returning to normal. You will be able to engage in many
activities that were too painful before surgery. During the first year,
you should steadily regain strength and flexibility in your knee. If you
adhere to your exercise program and stay active, your artificial knee will show steady and ongoing improvement.
It’s important to have realistic expectations about your
knee. You shouldn’t expect your artificial knee—as remarkable as it
is—to function at the same level as a natural knee. For example, it will
not bend as much as your original knee and it isn’t as comfortable to
kneel. Most experts say that high impact activities such as skiing,
running, jogging, court sports, and contact sports should be avoided.
The risk of the device breaking or that you will cause further damage to
your knee is real. Even if you are physically able to participate in
these activities they are going to contribute to cumulative wear on the
implant. This could impact the lifespan of the implant.
It’s common to experience some achiness and swelling—depending on the activities in which you participate following recovery. Many knee replacement patients report some stiffness at the beginning of exercise or after long walks or bicycle rides. Some also experience a feeling of “hotness” around the knee. You may need to apply ice and take over-the-counter pain medication to manage any inflammation or residual pain.
However, staying active helps you maintain strength, flexibility, and endurance over the long haul. Also, exercise helps build bone mass (and contributes to the development of a strong bond between bone and the implant) while reducing the risk of osteoporosis. This is because when you exercise, your compress bone compresses, and this stress causes bone to grow.
Managing your weight is critical. Extra pounds negatively affect your knees by putting additional stress on your joint and can cause your prosthesis to break or wear out sooner. Remember that you are at an increased risk of infection after a knee replacement. As a result, your doctor might also prescribe antibiotics before dental work or any invasive medical procedure.
If you are older than 60 at the time of your surgery, and you properly care for your artificial knee, it will likely last until very old age or for the rest of your life. However, it is important to monitor the joint and receive periodic check-ups. Your surgeon will determine whether, at some point in the future, you might require a revision.
Nine out of ten people who receive a total knee replacement report significant improvements in the quality of their life.
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It’s common to experience some achiness and swelling—depending on the activities in which you participate following recovery. Many knee replacement patients report some stiffness at the beginning of exercise or after long walks or bicycle rides. Some also experience a feeling of “hotness” around the knee. You may need to apply ice and take over-the-counter pain medication to manage any inflammation or residual pain.
However, staying active helps you maintain strength, flexibility, and endurance over the long haul. Also, exercise helps build bone mass (and contributes to the development of a strong bond between bone and the implant) while reducing the risk of osteoporosis. This is because when you exercise, your compress bone compresses, and this stress causes bone to grow.
Managing your weight is critical. Extra pounds negatively affect your knees by putting additional stress on your joint and can cause your prosthesis to break or wear out sooner. Remember that you are at an increased risk of infection after a knee replacement. As a result, your doctor might also prescribe antibiotics before dental work or any invasive medical procedure.
If you are older than 60 at the time of your surgery, and you properly care for your artificial knee, it will likely last until very old age or for the rest of your life. However, it is important to monitor the joint and receive periodic check-ups. Your surgeon will determine whether, at some point in the future, you might require a revision.
Nine out of ten people who receive a total knee replacement report significant improvements in the quality of their life.
Wednesday, April 16, 2014
Tuesday, April 15, 2014
Saturday, April 5, 2014
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