Calcaneal Stress Fracture

Calcaneal Stress Fracture

A calcaneal stress fracture is a hairline fracture calcaneus or heel bone. It is usually caused by overuse and is more common in soldiers who march long distances and runners. Here we explain the symptoms, treatment, and rehabilitation.

Calcaneus stress fracture symptoms

  • Symptoms of a calcaneal stress fracture may be similar to that of a bruised heel.
  • Pain will come on gradually over time and will often be made worse with weight-bearing activity such as running and jumping.
  • It may be difficult to differentiate between a bruised heel and a stress fracture.
  • Often an X-ray of the injured bone will not show any sign of fracture until the fracture has actually started to heal. This will be around 2 to 3 weeks later, but it is possible that a stress fracture will not appear on an X-ray at all.
  • Bone scans and MRI scans are more likely to be of assistance in diagnosing a calcaneal stress fracture.

Calcaneal stress fracture squeeze test

One test to help diagnose a stress fracture of the heel bone is the ‘squeeze test’.

  • The therapist squeezes the back of the heel from both sides.
  • If the pain is reproduced then the test is positive and this may be an indication of a stress fracture.
  • A bruised heel is unlikely to be affected in the same way with this test.

What is a Calcaneal stress fracture?

A calcaneal stress fracture is a hairline crack or fracture in the heel bone (calcaneus). It is an overuse injury which was seen mostly in soldiers marching long distances carrying heavyweights. However, they are also seen in long-distance runners, ballet dancers and sports involving jumping. They are the second most common stress fracture of the foot after navicular stress fractures.


Calcaneal stress fracture treatment

Rest – if a stress fracture is suspected, then complete rest is advised for 6 to 8 weeks. Stay off your feet as much as possible and refrain from any weight-bearing exercise. Use crutches if possible. Often injured athletes on crutches get far more sympathy and understanding than those who might hobble around with an injury that is not clearly visible.

Protection – if crutches are not a viable alternative then wear comfortable training shoes with a cushioning midsole rather than hard, flat work shoes. If you have to wear hard-soled shoes, then use a gel heel pad or cushioning insole to help protect the heel and allow it to rest. Taping your heel compresses the soft tissue providing more natural cushioning.


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Maintain fitness – it is important to maintain fitness with non-weight-bearing activities, such as swimming or cycling. See a sports doctor or professional practitioner who can confirm the diagnosis and advise on treatment.

Immobilization – in some cases, a plaster cast is applied for 2 – 6 weeks if the pain is severe. This will ensure a complete rest. When the athlete does start back running they must ensure the muscles in the lower leg are stretched and supple. A gradual return to full training is important.

This article has been written with reference to the bibliography.

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