What is Os trigonum syndrome?
Os trigonum syndrome is a condition characterized by an additional piece of bone located behind the ankle joint.
What are causes and symptoms of Os trigonum syndrome?
Irritation is the main cause of Os trigonum syndrome, which is why this condition is common among dancers and athletes that repeatedly point their toes. This repetitive motion can lead to inflammation in the tissues surrounding the ankle joint. Os trigonum syndrome often will lead to pain and discomfort, especially when pointing the foot downward. Os trigonum syndrome can also be caused as a result of an injury, such as an ankle sprain.
How is Os trigonum syndrome diagnosed?
If your doctor suspects Os trigonum syndrome, they will likely evaluate you or your loved on in a clinical setting before ordering diagnostic imaging tests. In many cases, imaging tests will confirm the diagnosis and better guide the physician in creating a treatment plan. It’s likely than an x-ray will be used to provide full visibility of the bones and joints, however, MRI scans are often used, too, to provide additional details on the condition as needed.
What are treatment options for Os trigonum syndrome?
Treatment for Os trigonum syndrome typically involves resting and refraining from strenuous activity, avoiding or limiting certain movement patterns that may cause pain, immobilization using a boot or orthopaedic device, ice to further reduce swelling, over-the-counter medications like ibuprofen to treat pain, and in some cases, ultrasound-guided injections of corticosteroids (anti-inflammatories) into the back of the ankle to provide pain relief while increasing the patient’s range of motion.