When speaking of the Haglund exostosis, the patient has complaints at the level of the attachment of the Achilles tendon. An exostosis is a bone protrusion. Pressure on a bone can cause the bone to thicken and create a protrusion (exostosis) at the site of that pressure.
If pressure on the back of the heel bone near the attachment of the Achilles tendon causes such a protrusion, it is called a Haglund's exostosis. Usually the cause is increased pressure due to (sports) shoes. A bursa can develop between the bony protrusion and the Achilles tendon. This bursa, in turn, can also become inflamed due to friction.
Symptoms
The exostosis causes a painful, hard and sometimes red swelling to occur on the back of the heel bone, on the outside of the Achilles tendon attachment.
Diagnosis
The final diagnosis is made by asking specific questions about the symptoms/complaints and an examination of the ankle. In addition, an x-ray will be taken. If an X-ray does not provide enough information, an additional MRI scan or CT scan may be performed.
General treatment
During keyhole surgery, this bone protrusion can be removed. The bursa between the Achilles tendon and the heel bone is also removed and the Achilles tendon is inspected. Usually the Achilles tendon itself is also slightly affected and can also be cleaned during surgery. However , if the examinations (NMR) show that the Achilles tendon is too much affected, an open procedure should be considered.