What causes Os Trigonum syndrome?

- Downhill running
- Ballet
- Soccer
- Ankle sprain injuries
What are the symptoms?
Symptoms can include:- Pain and tenderness at the back of the ankle
- Swelling
- Stiffness/weakness in the area
- Pain is exacerbated by pointing the toes downwards or standing on the toes
- Subsequent inflammation and damage to other soft tissue structures at the back of the heel ankle (e.g. possible bursitis, Achilles tendonitis, ligament tenderness)
How is it treated?
Before commencing treatment, the os trigonum syndrome must be diagnostically confirmed as there it shares symptoms with multiple other conditions that present at the back of the heel and ankle. Treatment begins with alleviating the initial painful symptoms by following the PRICE principles (protection, rest, ice, compression, elevation). Treatment then focuses on allowing the damaged tissues to heal without aggravating and flaring up the area. This can include:- Orthotics to stabilise the foot and reduce tension away from the back of the ankle
- Footwear assessment to ensure that the shoes are helping and not hindering the problem
- Physical therapy to stretch and strengthen any muscles that may be contributing to ongoing irritation and pain
- Brace or boot to immobilize the ankle