Violent overstretching of one or more ligaments in the knee. Sprains involving two or more ligaments cause considerably more disability than single-ligament sprains. When the ligament is overstretched, it becomes tense and gives way at its weakest point, either where it attaches to bone or within the ligament itself. If the ligament pulls loose a fragment of bone, it is called a sprain-fracture. There are 3 types of sprains:
BODY PARTS INVOLVED
Stress on a ligament that temporarily forces or pries the knee out of its normal location. Sprains occur frequently in runners, walkers, and those who jump in such sports as basketball, soccer, volleyball, skiing,and distance- or high-jumping. These athletes often accidentally land on the side of the foot.
Signs & Symptoms
How is a knee sprain diagnosed?
A caregiver will examine your knee and ask you questions about your activities. You may need x-rays or magnetic resonance (REZ-oh-nans) imaging (MRI). These tests will show a picture of the bones and tissues inside your knee. Caregivers can do these tests to learn if you have a fractured (FRAK-churd) (cracked or broken) bone or soft tissue damage.
The immediate treatment for a sprained knee is the standard RICE formula. This is an acronym for Rest, Ice, Compression, and Elevation. These steps will help reduce swelling and pain, and speed the healing process. Rest the knee while it aches and ice it intermittently several times a day. Wrap it in an elastic bandage in between icings, and keep it elevated as much as possible.
Follow your doctor's instructions. Instructions are supplemental
The doctor usually applies a splint from the ankle to the groin to immobilize the sprained knee. If the doctor does not apply a cast ,tape or elastic bandage:
Ask your doctor if you have any questions about using medications. Drugs that are commonly used to reduce pain and inflammation include:
Home DietDuring recovery, eat a well-balanced diet that includes extra protein, such as meat, fish, poultry, cheese, milk and eggs. Increase fiber and fluid intake to prevent constipation that may result from decreased activity.
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