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Leg Stress Fracture, Tibia
Liver Injury
Neck Dislocation
Neck Fracture
Neck Sprain
Neck Strain
Nose Injury
Pelvis Strain, Hip-Trunk
Pelvis Strain, Ischium
Perineum Contusion
Rib Dislocation
Rib Fracture
Rib Sprain
Rib Strain
Shoulder-Blade (Scapula) Bursitis
Shoulder-Blade (Scapula) Contusion
Shoulder-Blade Fracture, Acromion
Shoulder-Blade (Scapula) Fracture, Coracoid Process
Shoulder-Blade (Scapula) Fracture, Glenoid Fossa
Shoulder-Blade (Scapula) Fracture, Neck
Shoulder-Blade (Scapula) Strain
Shoulder Bursitis, Gleno-Humeral
Shoulder Bursitis, Subacromial
Shoulder Contusion
Shoulder Dislocation
Shoulder Sprain, Acromio-Clavicular
Shoulder Sprain, Gleno-Humeral
Shoulder Strain
Shoulder Tendinitis & Tenosynovitis
Skin Abrasion
Skin Laceration
Skin Puncture Wound
Spine Fracture, Lower Thoracic & Lumber Region
Spine Fracture, Sacrum
Spine Fracture, Tailbone
Spine Stress-Fracture, Neck or Back
Spleen Rupture
Thigh-Bone Fracture
Thigh Contusion
Thigh Hematoma
Thigh Injury, Hamstring
Thigh Strain, Quadriceps
Thigh Strain
Thumb Fracture
Thumb Sprain
Toe Dislocation
Toe Exostosis
Toe Fracture
Tooth Injury & loss
Wrist Contusion
Wrist Dislocation, Lunate
Wrist Dislocation, Radius or Ulna
Wrist Ganglion
Wrist Sprain
Wrist Strain
Wrist Tenosynovitis

Thigh Strain, Quadriceps

Injury to the quadriceps femoris muscle or its tendons. The quadriceps femoris is a large muscle at the front of the thigh. The muscle, tendon and attached bone comprise a unit. The unit stabilizes the thigh and allows its motion. A strain occurs at the weakest part of a unit. Strains are of 3 types:

  • Mild (Grade I) - Slightly pulled muscle without tearing of muscle or tendon fibers. There is no loss of strength.
  • Moderate (Grade II) - Tearing of fibers in the muscle, tendon or at the attachment to bone. Strength is diminished.
  • Severe (Grade III) - Rupture of the muscle-tendon-bone attachment with separation of fibers. Severe strain requires surgical repair. Chronic strains are caused by overuse. Acute strains are caused by direct injury or overstress.

Body Parts Involved

  • Quadriceps femoris muscle or its various tendons.
  • Femur (thigh bone), patella (kneecap) or tibia (large lower-leg bone).
  • Soft tissue surrounding the strain, including nerves, periosteum (covering to bone), blood vessels and lymph vessels.      


  • Prolonged overuse of muscle-tendon units in the thigh or knee.
  • Single violent blow or force applied to the knee or the quadriceps area of the thigh.

Signs & Symptoms

  • Pain when moving, stretching or flexing the thigh.
  • Muscle spasm of the quadriceps femoris.
  • Swelling around the injury.
  • Loss of strength (moderate or severe strain).
  • Crepitation ("crackling") feeling and sound when the injured area is pressed with fingers.
  • Calcification of the muscle or tendon (visible with X-rays).
  • Inflammation of the tendon sheath.


Note:- Follow your doctor's instructions. These instructions are supplemental.

First Aid

Use instructions for R.I.C.E., the first letters of rest, ice, compression and elevation.

Continuing Care

  • Use ice massage 3 or 4 times a day for 15 minutes at a time. Fill a large Styrofoam cup with water and freeze. Tear a small amount of foam from the top so ice protrudes. Massage firmly over the injured area in a circle about the size of a softball.
  • After the first 24 hours, apply heat instead of ice, if it feels better. Use heat lamps, hot soaks, hot showers, heating pads, or heat liniments and ointments.
  • Take whirlpool treatments, if available.
  • Wrap the injured quadriceps muscle loosely with an elasticized bandage between treatments.
  • Massage gently and often to provide comfort and decrease swelling.


  • For minor discomfort, you may use:

Aspirin, acetaminophen or ibuprofen.

Topical liniments and ointments.

  • Your doctor may prescribe:

Stronger pain relievers.

Injection of a long-acting local anesthetic to reduce pain.

Injections of corticosteroids, such as triamcinolone, to reduce inflammation.

Home Diet

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.

Diagnostic Measures

  • Your our own observation of symptoms.
  • Medical history and exam by a doctor.
  • X-rays of the hip, thigh arid knee to rule out fractures.
Prevention Tips
  • Participate in a strengthening and conditioning program appropriate for your sport.
  • Warm up before practice or competition.
  • Wear proper protective equipment, such as thigh pads, for contact sports.

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