What is the treatment for effusion of the ankle? I have been referred for surgery, but would like to know the likely outcome

Ankle effusion. Effusion, or swelling, can come from multiple sources. What is the diagnosis and what are you having surgery for?
Depends on diagnosis. Effusion is a common end point for a number of conditions of the ankle. Outcome depends on a number of factors including but not limited to patient age, condition in question, method of treatment, the ability of the patient to remain complaint with plan of aftercare and medical comorbities.