Thigh Contusion (Quadriceps Contusion)

Thigh contusion

A thigh contusion is also known as a dead leg or charley horse. It is caused by direct trauma or impact to the muscle, crushing it against the bone.

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Symptoms of a thigh contusion

Symptoms include:

  • Pain at the time of injury.
  • Restricted movement and inability to run properly.
  • If your contusion is severe, even walking may be difficult.
  • Rapid swelling.
  • Bruising may or may not appear depending on the type of injury sustained.

How bad is my thigh contusion?

Thigh contusions range in severity from very mild which is hardly noticeable at the time, to severe disabling injuries. As a result of which you will be unable to walk. Contusions are grade 1, 2 or 3 depending on how bad they are.

Grade 1 contusions

If you have a grade 1 thigh contusion your thigh muscle will feel tight. You may walk with a limp. However, you are unlikely to have much swelling.

Trying to straighten your knee against resistance probably won’t produce much pain. You most likely will have nearly a full range of motion.

Grade 2

With a grade 2 you are unlikely to be able to walk properly. You will feel occasional sudden twinges of pain. You may have some swelling. Trying to straighten your knee against resistance will be painful. Pressing in (palpating) over the site of injury will also be painful.

Grade 3

A grade 3 contusion means you will be unable to walk without the aid of crutches. You will be in severe pain and significant swelling will appear immediately.

Contracting the muscle may produce a visible bulge or gap in your thigh. Expect to be out of competition for 3 to 12 weeks.

Although a dead leg or charlie horse can often seem a minor injury, it is important the correct diagnosis is made. If you fail to treat a thigh contusion properly it can lead to long-term injury or permanent muscle damage.

Causes & anatomy

A thigh contusion is caused by a direct impact or trauma to the muscle which crushes it against the bone underneath, causing internal bleeding in the muscle.

Skeletal muscles are made up of bundles of muscle fibres. The muscle is surrounded by a protective sheath (called the Epimysium). 

Contusions are either intramuscular or intermuscular depending on whether the bleeding is contained within the muscle sheath, or whether the sheath is also damaged and the muscle bleeds outside the muscle sheath.

Intramuscular hematoma

Intramuscular hematoma

Intramuscular hematoma is a tearing of the muscle within the sheath that surrounds it. As a result, the initial bleeding stops early, within hours because of increased pressure within the muscle. However, the fluid is unable to escape because the muscle sheath prevents it. Therefore, bruising as unlikely to develop.

The result is considerable loss of function and pain, which can take days or even weeks to recover.

Intermuscular hematoma

Intermuscular hematoma

With an intermuscular hematoma both your muscle and part of the sheath surrounding it is damaged. This means that the initial bleeding will take longer to stop, especially if you do not ice it.

However, recovery is often faster than with intramuscular. This is because the blood and fluids can flow away from the site of injury. You are more likely to see bruising come out with this one.

If after two to three days the swelling has not gone, then your injury is probably intramuscular. The bleeding is contained within the muscle.

If you see bruising, especially away from the site of the injury, then it is probably an intermuscular injury. You will have greater movement and muscle function if you injury is intermuscular.

Treatment for thigh contusions

Apply the PRICE principle (protection, rest, ice, compression & elevation) as soon as possible after injury.

Cold therapy

Apply a cold therapy and compression wrap immediately, or as soon as possible. Ice can be applied every two hours for 10 minutes for the first 72 hours for more severe contusions. This will help stop any internal bleeding and reduce pain and swelling.

Do not apply ice directly to the skin as it may cause ice burns. Instead, wrap in a wet tea towel. Or use a commerically available cold therapy wrap.

It is very important to apply cold and compression to a contusion. Applying heat or deep massage in the acute stage may cause further injury or lead to myositis ossificans which is a bony growth within the muscle.

Rest

Complete rest is important for at least the first 24 to 48 hours. This may be longer if you have a grade 2 or 3 injury.

Thigh supports

Wear a compression bandage or thigh support to protect the injury and help reduce swelling. A simple tube grip type support is fine during the acute stage. Later, a neoprene heat retainer helps support the muscle, encourage blood flow and healing.

Elevation

Elevate the limb to help swelling and tissue fluids to drain away from the area.

Heat

From day four (no earlier – and it may be longer in severe injuries) apply heat. Use a hot water bottle, heat pack or hot baths.

You physio may use ultrasound to speed up recovery.

Massage

Massage ONLY once the acute phase has definitely passed. Heat treatment and massage can cause serious muscle damage if performed on an acute contusion.

Stretching exercises for thigh contusions

If it is not painful then begin gentle stretching exercises, but only after the acute phase. This is usually 48 hours post injury but may be longer.

Strengthening exercises for thigh contusions

With a grade one contusion, you can perform strengthening exercises as soon as you can do them pain free.

Start with the easier exercises on a daily, or twice daily basis. Then, as soon as you feel comfortable, move onto the more difficult exercises. However, you may need more recovery time after. So 2 to 3 times per week is OK.

With a grade two contusion, it may be a week before you can begin strengthening. Grade three injuries will take even longer.

All strengthening sessions should start with a gentle warm up and stretch and finish with a good stretch. Continue exercises for a few weeks after you feel the injury has healed.

If you are unable to continue normal training, then swim or cycle instead. or if this is not possible work on the upper body strength. It is important to continue a training routine of some description.

Returning to full fitness

This is a gradual process. For a grade one contusion normal training may be resumed with a few days. It is important to maintain a stretching and strengthening program alongside training to ensure full strengthening and mobility of the muscle.

Gentle jogging may be started and built up until the athlete can run comfortably for 40 minutes. Speedwork should be introduced gradually, for example: 10 x 60m at 50% of top speed, next session might be 10 x 60m at 70% top speed and so on.

Exercises for thigh contusions

Once the initial acute phase has passed, rehabilitation exercises are similar to those of a thigh strain.

Quadriceps stretching

Gentle quadriceps stretching exercises should begin as soon as pain allows after the first 24 hours. The emphasis should be on rest and healing rather than attempting to exercise too soon. However, once exercises can safely be done pain-free it is important to restore the muscle to its full mobility and strength. Strengthening exercises should only be done well after the acute stage.

Static stretches should be done very gently to begin with where the stretch is held for a period of time. Later, more advanced pnf stretches can be done if there is a noticeable lack of flexibility in the muscle.

Read more on thigh injury rehabilitation exercises.

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Thigh Strain Rehabilitation Program

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Recommended products

We recommend the following products to help treat thigh injuries:

Cold wrap

Cold Therapy Compression Wrap

Cold therapy is important for reducing pain and swelling. A reusable gel pack can be used for both hot and cold and an elastic sleeve enables easy application and compression.


Thigh Support

Supports and protects your muscle while it is headling as well as helping to reduce pain and swelling. Retains heat later in the rehabilitation process.

Foam roller for calf muscle

Foam Roller

A foam roller is an excellent piece of kit which can be used in place of massage to treat muscle injuries. They are also excellent when use regularly as part of your warm up.

Resistance bands

Resistance Bands

Resistance bands are important for most sports rehabilitation and enable you to exercise any muscle from the comfort of your own home.

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