Knee Injury

Symptoms

DEFINITION

• Injury to a bone, muscle, joint or ligament of the knee

Types of Injuries

• Contusion (bruise) - A direct blow or crushing injury results in bruising of the skin, muscle, and underlying bone
• Dislocation (bone out of joint)
• Dislocation of patella (kneecap out of joint)
• Fracture (broken bones)
• Sprain - Stretches and tears of ligaments
• Strain - Stretches and tears of muscles (pulled muscle)
• Quadriceps tendon rupture - There is pain in the insertion of the quadriceps muscle into the patella (area just above knee cap). There is weakness or inability to extend the knee fully (e.g., while sitting down on chair can't straighten knee).

See More Appropriate Topic (instead of this one) If

• ANIMAL BITE to knee
• BURNS to knee
• PUNCTURE WOUND to knee
• SKIN INJURY is main concern
• KNEE PAIN and no recent injury

FIRST AID Advice for Bleeding: Apply direct pressure to the entire wound with a clean cloth.

FIRST AID Advice for Penetrating Object: If penetrating object still in place, don't remove it (Reason: removal could increase bleeding).

FIRST AID Advice for Shock: Lie down with feet elevated.

FIRST AID Advice for Sprained Knee:

• Apply a cold pack or an ice bag (wrapped in a moist towel) to the area for 20 minutes.
• Wrap knee with an elastic bandage.

Should I Call?

WHEN TO CALL YOUR DOCTOR

Care at Home

HOME CARE ADVICE FOR MINOR BRUISE, SPRAIN OR STRAIN

1. Treatment of Bruise (e.g., direct blow to knee area):
   • Apply a cold pack or an ice bag (wrapped in a moist towel) for 20 minutes each hour for 4 consecutive hours. (20 minutes of cold followed by 40 minutes of rest for 4 hours in a row).
   • 48 hours after the injury, use local heat for 10 minutes 3 times each day to help reabsorb the blood.
   • Rest the injured part as much as possible for 48 hours.
2. Treatment of Sprains and Strains of Knee:
   • FIRST AID - Wrap with a snug elastic bandage. Apply an ice pack (crushed ice in a plastic bag covered with a moist towel) to reduce bleeding, swelling, and pain.
   • Treat with R.I.C.E. (rest, ice, compression, and elevation) for the first 24 to 48 hours.
     • REST the injured leg for 24 hours. You may return to normal activity after 24 hours of rest if the activity does not cause pain.
     • Continue to apply crushed ICE packs for 10-20 minutes every hour for the first 4 hours. Then apply ice for 10-20 minutes 4 times a day for the first two days.
     • Apply COMPRESSION by wrapping the injured part with a snug, elastic bandage for 48 hours. If you experience numbness, tingling, or increased pain in the injured part, the bandage may be too tight. Loosen the bandage wrap.
     • Keep injured leg ELEVATED and at rest for 24 hours. Put your leg up on a pillow and stay off your feet as much as possible.
3. Pain Medicines:
   • For pain relief, take acetaminophen, ibuprofen or naproxen.
   • Acetaminophen (e.g., Tylenol):
     • Take 650 mg by mouth every 4-6 hours. Each Regular Strength Tylenol pill has 325 mg of acetaminophen.
     • Another choice is to take 1,000 mg every 8 hours. Each Extra Strength Tylenol pill has 500 mg of acetaminophen.
     • The most you should take each day is 3,000 mg.

   • Ibuprofen (e.g., Motrin, Advil):

     • Take 400 mg by mouth every 6 hours

     • Another choice is to take or 600 mg by mouth every 8 hours.

     • Use the lowest amount that makes your pain feel better.

   • Naproxen (e.g., Aleve)

     • Take 250-500 mg by mouth every 12 hours.

     • Use the lowest amount that makes your pain feel better.

   • Extra Notes

     • Acetaminophen is thought to be safer than ibuprofen or naproxen in people over 65 years old. Acetaminophen is in many OTC and prescription medicines. It might be in more than one medicine that you are taking. You need to be careful and not take an overdose. An overdose can hurt the liver.

     • Before taking any medicine, read all the instructions on the package.

4. Expected Course: Pain and swelling usually begin to improve 2 or 3 days after an injury. Swelling is usually gone in 7 days. Pain may take 2 weeks to completely resolve.
5. Call Your Doctor If:
   • Pain becomes severe
   • Pain does not improve after 3 days
   • Pain or swelling lasts more than 2 weeks
   • You become worse

And remember, contact your doctor if you develop any of the "Call Your Doctor" symptoms.

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