Foot & Ankle Surgery located in Fort Worth and Weatherford, TX
Patients often do not know they have an os trigonum until an injury occurs. Os trigonum syndrome is triggered by an injury, such as an ankle sprain as well as activities or sports that frequently cause the downward pointing of the toes. The os trigonum can get squeezed between the ankle and heel bone. As the os trigonum gets loose, the tissue connecting it to the talus is stretched or torn and the area becomes inflamed.
Os trigonum syndrome can mimic other conditions such as an Achilles tendon injury, ankle sprain, or talus fracture. Diagnosis of os trigonum syndrome begins with questions from your surgeon about the development of the symptoms.
X-rays are ordered to evaluate any bony abnormalities. An MRI will likely be ordered to evaluate the soft tissue around the ankle as well as the ankle and subtalar joint. This is to determine the extent of the pathology to the back of the ankle as well as determine surgical planning should surgery be warranted.
Relief of the symptoms is often achieved through treatments that can include a combination of the following:
Symptoms usually improve with non-surgical treatment. However, in some patients, surgery may be required to relieve the symptoms. Surgery typically involves removal of the os trigonum, as this extra bone is not necessary for normal foot function. Your surgeon will select the surgical procedure best suited for your case based on the type and severity of your condition.
Surgery is typically an outpatient procedure (day surgery) and scheduled at your convenience.
A splint or boot will be placed on your surgical foot/ankle after surgery. No weight to the surgical foot/ankle is advised until your surgeon encourages weight bearing.