Our Health Library information does not replace the advice of a doctor. Please be advised that this information is made available to assist our patients to learn more about their health. Our providers may not see and/or treat all topics found herein.
Your searched on: knee
Learn how knee arthroscopy is done and what to expect after surgery.
Plica in the Knee
Plica in the knee is a ridge or fold of the tissues lining the knee joint (synovium). Normally a plica does not cause problems, but it can become inflamed and thickened from injury or overuse. This is called "plica syndrome." Plica syndrome can interfere with normal joint function and cause pain when the thickened...
Physical Therapy for Knee Arthritis
Painful knee arthritis can keep you from being as active as you need to be. You may not walk as much. You may avoid going up and down stairs. But when you don't move that knee as much, the ligaments, tendons, and muscles around it can shorten and get weaker. Movement also pumps fluid in and out of the joint space, which...
Knee Replacement: Recovery
Learn about recovering from knee replacement surgery, and listen to stories about different recovery experiences.
Knee Arthritis: Treatments
Learn about the different treatment options for knee arthritis, and hear stories of what others have tried.
Knee Replacement Surgery
Learn what to expect during knee replacement surgery and how it can ease the pain of arthritis.
Knee Problems and Injuries
Looks at sudden injuries like meniscus tears or torn ligaments that cause knee pain. Covers injuries like bursitis and tendinitis caused by overuse. Includes tool to help you decide when to call a doctor. Offers home treatment and prevention tips.
Knee Replacement Surgery
Covers surgery to replace the ends of bones in a damaged joint. Includes slideshow on knee replacement. Looks at why surgery is done, risks, and how well it works. Discusses what to expect after surgery and living with a knee replacement.
Knee Arthritis: What Is Knee Replacement Surgery?
Learn how cartilage is replaced by implants in knee replacement surgery.
Knee Arthroscopy: Recovering at Home
Learn what to expect and what to watch for as you recover from knee arthroscopy.
Deciding About Knee Replacement Surgery
Learn the pros and cons of having a knee replacement.
Arthritis: Shots for Knee Pain
Shots, or injections, for arthritis knee pain can help you cope with the pain and be more active. The most common shot for arthritis knee pain is a steroid shot. It's also called a cortisone or corticosteroid shot. Arthritis pain is caused by inflamed tissue, and the steroid shot can help reduce the inflammation...
Knee Arthritis: What Is Osteoarthritis?
Learn what knee osteoarthritis is and what may cause it.
Knee Arthritis: Nonsurgical Treatments
Learn about different treatments for knee arthritis other than surgery.
Knee Replacement Surgery: Pros and Cons
Learn about the pros and cons of having knee replacement surgery.
How to Do the Passive Knee Stretch
Passive knee extension exercises will help you be able to fully straighten your leg.
Knee Replacement: Learning About Rehab
Learn more about doing rehab right after knee replacement surgery, so you can find that sweet spot between resting and getting stronger.
Magnetic Resonance Imaging (MRI) of the Knee
Discusses test (also called MRI scan) that uses a magnetic field and pulses of radio wave energy to make pictures of the knee. Covers why it is used, including to find problems like arthritis, meniscus injury, or damaged cartilage, ligaments, or tendons.
Knee Replacement Surgery: How Others Decided
Hear what other people thought about as they decided whether to have knee replacement surgery.
Knee Replacement: When Can You Be Active Again?
Learn how long it might take to start doing everyday activities again after a knee replacement.
Knee Arthritis: What Can I Expect?
Learn how osteoarthritis usually begins, and listen to stories of how it can progress differently in different people.
How to Do Stationary Biking for Knee Rehab
Riding a stationary bike is great for increasing the strength and mobility of your knees and legs.
How to Do the Knee Flexion Stretch While Sitting
Strengthen your knee and increase its range of movement with this seated knee flexion exercise.
Arthritis: Should I Have Knee Replacement Surgery?
Guides through decision to have knee replacement surgery for osteoarthritis. Describes other surgeries and treatment options used to decrease osteoarthritis pain. Covers benefits and risks. Includes an interactive tool to help you make your decision.
How to Do the Single Knee-to-Chest Exercise
Learn how to do the single knee-to-chest exercise to stretch your hip and lower back.
Knee Bursitis and Tendon Injury: Preventing Pain
Patellar tendinopathy, also known as jumper's knee, affects the tendons that attach the kneecap to the shinbone and the quadriceps tendon to the kneecap. Prolonged kneeling can cause prepatellar bursitis, which can develop into an egg-shaped bump on the front of the kneecap. To prevent and ease knee pain during work...
ACL Injury: Should I Have Knee Surgery?
Guides through decision to have knee surgery for an ACL injury. Compares surgery to rest, exercise, and rehabilitation as treatment for an ACL injury. Covers benefits and risks. Includes an interactive tool to help you make your decision.
How to Do Short-Arc (Terminal) Knee Extensions While Standing
Strengthen the thigh muscles that help support your knee by doing short-arc (terminal) knee extension exercises.
Medial Collateral Ligament (MCL) Injury
What is a medial collateral ligament (MCL) injury? A medial collateral ligament (MCL) injury is a sprain or tear to the medial collateral ligament. The MCL is a band of tissue on the inside of your knee. It connects your thighbone to the bone of your lower leg. The MCL keeps the knee from bending inward. You can hurt...
Lateral Collateral Ligament (LCL) Injury
What is a lateral collateral ligament (LCL) injury? An LCL injury is a sprain or tear to the lateral collateral ligament (LCL). The LCL is a band of tissue on the outside of your knee. It connects your thighbone to the bone of your lower leg and helps keep the knee from bending outward. You can hurt your LCL during...
The decision to have a limb amputated is difficult for the person and his or her doctor. Many times, extensive measures have been tried to save the limb. The major causes of amputation are diabetes and/or peripheral arterial disease that results in either painful, poor limb function or gangrene. In general, amputation...
What is a meniscus tear? A meniscus tear is a common knee injury. The meniscus is a rubbery, C-shaped disc that cushions your knee. Each knee has two menisci (plural of meniscus)—one at the outer edge of the knee and one at the inner edge. They keep your knee steady by balancing your weight across the knee. A torn...
Discusses Baker's cyst (also called popliteal cyst), a pocket of fluid that forms a lump behind the knee. Covers causes such as swelling from arthritis and knee injury. Discusses symptoms. Covers treatment, including things to do at home and surgery.
Patellar Tracking Disorder: Exercises
This article shows how to do easy and then more difficult exercises to help with patellar tracking disorder.
Patellofemoral Pain Syndrome
What is patellofemoral pain syndrome? Patellofemoral pain syndrome is pain in the front of the knee. It frequently occurs in teenagers, manual laborers, and athletes. It sometimes is caused by wearing down, roughening, or softening of the cartilage under the kneecap. What causes it? Patellofemoral pain syndrome may be...
How to Do Heel Slides
Heel slides strengthen the muscles that bend your hip and your knee.
The kneecap (patella) is normally positioned over the front of the knee joint at the base of the thighbone (femur). A kneecap can be dislocated, or moved out of its normal position, when: The inner edge of the kneecap is hit, pushing it toward the outer side of the leg. This can happen more easily if there is patellar...
Anterior Cruciate Ligament (ACL) Injuries
What is an anterior cruciate ligament (ACL) injury? An anterior cruciate ligament, or ACL, injury is a tear in one of the knee ligaments that joins the upper leg bone with the lower leg bone. The ACL keeps the knee stable. Injuries range from mild, such as a small tear, to severe, such as when the ligament tears...
How to Do Heel Raises
Heel raises strengthen your lower leg muscles, which help support your knees, ankles, and feet.
How to Do the Single-Leg Balance Exercise
Single-leg balance exercises improve balance and strengthen the muscles that support the knees.
How to Do Quad Sets
Quad sets can strengthen your quad muscles—the muscles in the front of your thigh that help straighten your knee.
Describes extremity X-rays, what they are, and why they are done. Provides tips on how to prepare. Also covers risks. Explains normal and abnormal results, as well as what can affect accuracy of tests.
Covers the causes and symptoms of osteoarthritis. Covers possible treatments with over-the-counter pain medicines and prescription medicines. Includes info on home treatment for joint pain, including using heat or ice, staying at a healthy weight, and exercise.
Posterior Cruciate Ligament (PCL) Injury
What is a posterior cruciate ligament (PCL) injury? A PCL injury is a sprain or tear of the posterior cruciate ligament (PCL). The PCL is a band of tissue that crosses inside the center of the knee joint. It connects your thighbone to the bone of your lower leg. The PCL keeps your knee stable when it moves forward or...
Bruises and Blood Spots Under the Skin
Discusses how and why bruises and blood spots might develop. Offers checklist to help you decide when to call a doctor. Offers home treatment and prevention tips.
Includes info on psoriasis, a chronic skin disorder. Covers causes and symptoms, including scaly patches on the knees, elbows, and scalp. Includes info on what increases your risk. Covers treatment with creams and oral medicines. Offers home treatment tips.
How to Do Glute Sets
Learn how to do glute sets to strengthen the muscles in your butt that help rotate and extend your legs.
A subluxation is a partial dislocation. The kneecap, or patella, can sublux out of its normal position more easily when the thigh muscles are weak, when the patella is not firmly held by the surrounding tendons and ligaments, or when there is a problem with the alignment or structure of the knee bones. A patellar...
Meniscus Tear: Should I Have a Diagnostic Test (MRI or Arthroscopy)?
Guides through decision to have a diagnostic test like an MRI or arthroscopy done on a meniscus tear. Describes the two tests. Lists the three types of meniscus tears. Covers benefits and risks. Includes an interactive tool to help you make your decision.
Meniscus Tear: Should I Have Surgery?
Guides you through the decision to have surgery for a torn meniscus. Explains two kinds of surgery. Explains when surgery is done. Lists risks and benefits of surgery for meniscus tear. Includes interactive tool to help you decide.
Preventing Falls: Leg Lifts
Learn how to do a simple exercise to strengthen your core and prevent falls.
Meniscus Tear: Rehabilitation Exercises
A meniscus tear is a common knee joint injury. How well the knee will heal and whether surgery will be needed depends in large part on the type of tear and how bad the tear is. Work with your doctor to plan a rehabilitation (rehab) program that helps you regain as much strength and flexibility in your knee as possible...
RICE: Rest, Ice, Compression, Elevation
Learn steps you can take at home to reduce pain and swelling after a sprain or strain.
Learn how surgery for a meniscus tear is done and what to expect after surgery.
Meniscectomy for a Meniscus Tear
Meniscectomy is the surgical removal of all or part of a torn meniscus. A meniscus tear is a common knee joint injury. Surgeons who perform meniscectomies ( orthopedic surgeons) will make surgical decisions based on the meniscus's ability to heal as well as your age, health, and activity level. Your doctor will likely...
A meniscus tear is a common injury to the cartilage that stabilizes and cushions the knee joint. Whether or not your tear can be repaired depends on the type of the tear. Radial tears sometimes can be repaired, depending on where they are located. Horizontal, flap, long-standing, and degenerative tears—those caused by...
ACL Injury: Exercises to Do Before Treatment
After an anterior cruciate ligament (ACL) injury, you lose leg strength and motion and stability of the knee. It is important that you regain your leg strength and motion as soon as possible, whether you choose to have surgery for your ACL injury or not. Exercises to regain muscle strength and knee motion should begin...
Joint Replacement: Realistic Expectations
It is important to have realistic expectations of joint replacement surgery. Replacement joints are not "miracle" joints. They will not restore a joint to the function it had before the arthritis began. Pain relief is the most dependable outcome of...
ACL Reconstruction Surgery
Learn how ACL surgery is usually done and what to expect after surgery.
Anterior Cruciate Ligament (ACL) Surgery
Surgery for anterior cruciate ligament (ACL) injuries reconstructs or repairs the ACL. ACL reconstruction surgery uses a graft to replace the ligament. The most common grafts are autografts using part of your own body, such as the tendon of the kneecap (patellar tendon) or one of the hamstring tendons. Sometimes the...
Meniscus Surgery: Recovery Time
Surgery to repair a torn meniscus involves rehabilitation. But rehab varies depending on the injury, the type of surgery, and your doctor's preference. In general, meniscus surgery is followed by a period of rest, walking, and selected exercises. Every recovery is different and depends on many things. But here are some...
Juvenile Idiopathic Arthritis: Deciding About Total Joint Replacement
If your child has severe joint damage from juvenile idiopathic arthritis (JIA), your child's doctors may recommend a total joint replacement. As you and the doctors work through this decision together, consider the following: Your child's age. Consider how old your child is. His or her bones may still...
Hot and Cold Therapy for Arthritis
Learn how to use heat and ice to treat pain from arthritis.
Arthritis: Making Everyday Activities Easier
Get ideas about tools and changes to your home that can simplify your daily life.
Exercising Safely With Arthritis
Learn how activity can help reduce joint pain and how to exercise safely when you have arthritis.
Quick Tips: Exercising Safely With Arthritis
Exercise is one of the best things you can do to help keep your muscles strong and reduce joint pain and stiffness. And it can help you reach and stay at a healthy weight. But you want to make sure that you don't hurt your joints when you exercise. Before you get started, ask your doctor what kind of activity would...
Coping With Osteoarthritis
When you find out that you have osteoarthritis, you may be scared and worried about how it may change your life, work, and relationships. It's hard to know how fast your arthritis may progress. Your symptoms may come and go, stay the same, or get worse over time. Some days you may feel fine and be able to do the things...
Osteoarthritis: Exercising With Arthritis
Covers exercises that are helpful for a person with osteoarthritis. Includes aerobic, strength, and flexibility exercises, and tips to motivate yourself. Includes things to avoid. Looks at why it is important to exercise and gives tips on how to exercise.
Helps you check symptoms of leg injuries caused during sports or recreational activities, work-related tasks, and work or projects around home. Includes bruises, swelling, sprains, pulled muscles, and broken bones. Discusses treatment and prevention.
Complementary Medicine for Arthritis
Complementary medicine includes many treatments you can use along with standard medical treatment. A lot of people use some form of complementary medicine to treat osteoarthritis. Some of these treatments may help you move more easily and deal with the stress and pain of arthritis. But in some cases, not much is...
Bev's Story: Coping With Arthritis
Find out how Bev learned to cope with arthritis.
Modifying Activities for Osteoarthritis
If you have osteoarthritis and your joints hurt when you do an activity, try other ways of doing it that do not cause pain. If you get tired when you do a task for long periods of time, break the task down into several smaller tasks, and rest between them. Avoid extended periods of standing, and try not to kneel or...
Osteotomy for Osteoarthritis
Covers surgery (osteotomy) to remove a wedge of bone near a damaged joint. Looks at why it is done and what to expect after surgery. Covers physical therapy. Includes info on how well it works and the risks of surgery.
Complications of Osteoarthritis
Most people find osteoarthritis to be a nuisance that eventually becomes significant enough to affect their daily activities. And sometimes there are more serious complications. Possible complications of osteoarthritis include: Rapid, complete breakdown of cartilage resulting in loose tissue material in the joint...
Comparing Rheumatoid Arthritis and Osteoarthritis
Rheumatoid arthritis and osteoarthritis are different types of arthritis. They share some similar characteristics, but each has different symptoms and requires different treatment. So an accurate diagnosis is important. Osteoarthritis is the most...
Paraffin Wax for Arthritis
You can use paraffin wax (may be called either paraffin or wax) to apply moist heat to your hands or feet to ease the pain and stiffness of osteoarthritis. Paraffin especially helps to reduce pain and loosen up your hand and finger joints before exercise. You should talk with your doctor before trying paraffin at...
Preventing ACL Injuries
A lot of the research on preventing anterior cruciate ligament (ACL) injuries has focused on women: women athletes injure their ACLs up to 8 times as often as men athletes. Although the following tips come from women's programs, they can help anyone prevent ACL injuries. Training and conditioning should take...
Quick Tips: Modifying Your Home and Work Area When You Have Arthritis
The pain and stiffness from arthritis may make it hard for you to do your daily tasks. For instance, if you have problems with your hands or fingers, you may find it hard to type or to open and close a door. If you have problems with your hips or knees, it may be hard to go up and down stairs or get in and out of a...
Exercise and Osteoarthritis
A regular exercise program is an important part of anyone's lifestyle. If you have osteoarthritis, check with your health professional before beginning or continuing any exercise so that you can determine whether it is safe and effective for...
Capsaicin for Osteoarthritis
Capsaicin (Zostrix), available without a prescription, is a pain reliever that comes in a cream that you apply directly to your skin (topical analgesic). It has been found to relieve joint pain from osteoarthritis in some people when rubbed into the...
Small Joint Surgery for Osteoarthritis
Surgery is more common on the larger joints, such as the hip and the knee. But if arthritis in the joints of the hands or feet is so bad that you can't do your daily tasks, surgery may help you move better and with less pain. In the hands, the goal is to allow you to do basic daily tasks—such as eating, bathing, and...
Osteoarthritis: Heat and Cold Therapy
For moderate to severe pain from osteoarthritis, try applying heat and cold to the affected joints. Experiment with these heat and cold techniques until you find what helps you most. Apply heat 2 or 3 times a day for 20 to 30 minutes, using a...
Treatment for ACL Injuries in Children and Teens
A child with an ACL injury can sometimes be treated without surgery to avoid damage to the child's still-growing bones. For example, rehab exercises, wearing a brace, and avoiding activities that require jumping or twisting can help. Surgery is usually recommended for active children. It can keep the knee more stable...
Packing a Wound at Home
Learn how to pack a wound at home.
COPD: Exercises for Building Strength
Try a few gentle and safe exercises to build your strength.
Physical Rehabilitation for ACL Injuries
Rehabilitation (rehab) is needed after most ACL injuries, with or without surgery. It'll help you regain normal range of motion and flexibility in your knee. Rehab programs also strengthen the knee and the muscles around it, leading to better knee stability. Your doctor or physical therapist will design a rehab program...
Medicines That Can Cause Bruises
Many prescription and nonprescription medicines may reduce your blood's ability to clot and cause bruising or bleeding under the skin. A few examples are: Medicines (called blood thinners) that prevent blood clots. Also, taking a nonprescription medicine with a blood thinner may increase your risk of bruising and...
A puncture wound is a forceful injury caused by a sharp, pointed object that penetrates the skin. A puncture wound is usually narrower and deeper than a cut or scrape. Many people accidentally get puncture wounds with household or work items, yard...
Cut That Removes All Layers of Skin
Cuts may slice off several layers of skin. As long as some of the layers of skin are still in place, new skin will form in the bottom of the wound and along the wound edges. The wound will heal from the bottom up. When a cut or scrape removes all of the layers of skin (a full-thickness avulsion injury), fat and...
Care for a Skin Wound
Skin wounds, including animal or human bites, need thorough cleaning to reduce the risk of infection and scarring and to promote healing. You may be able to do this yourself for minor wounds. You'll have to stop any bleeding, clean the wound, and perhaps bandage the wound. Stop the bleeding Before you...
Skin Adhesives (Liquid Stitches)
Skin adhesives are clear gels that may be used to hold the edges of a small cut together. Your doctor may apply a skin adhesive instead of stitching your cut. A liquid will be applied to your skin and allowed to dry. As it dries, it creates a film that will hold together the edges of your cut. If a skin adhesive is...
Puncture Wounds: Stitches, Staples, and Skin Adhesives
Puncture wounds are less likely than cuts to be stitched, stapled, or have a skin adhesive applied because: Puncture wounds tend to be smaller than cuts and usually do not heal better or scar less when stitched. Puncture wounds tend to be deeper, narrower, and harder to clean than cuts. Sealing bacteria into a wound...
Cuts are open wounds through the skin. Normally the skin is under slight, constant tension as it covers the body. A cut is a forceful injury to the skin. Many people accidentally cut themselves with household or work items, yard tools, or when...
Cuts: When Stitches Are Needed
It is important to determine if your wound needs to be closed by a doctor. Your risk of infection increases the longer the wound remains open. Most wounds that require closure should be stitched, stapled, or closed with skin adhesives (also called liquid stitches) within 6 to 8 hours after the injury. Some wounds that...
Removing an Object From a Wound
In the following situations, do not try to remove an object from the wound. Seek medical treatment immediately. Do not remove an object that has punctured and penetrated the eyeball. Note: Do not bandage or put any pressure on the eye. If an object has penetrated the eyeball, hold the object in place to prevent...
Taking Care of Stitches
Learn how to care for your stitches to help them heal properly.
Care for a Skin Wound
Learn how to care for your cut or scrape so it will heal and won't get infected.