Only if you are an athlete and would want to run and play in the future, would you need a surgery. having said that please do 3Tesla MRI,get the grade of tear of acl, first try to see if physiotherapy works for 6 weeks if not only then do surgery
Next Steps
see a physiotherapist or a sports orthopedic surgeon
Health Tips
if at all you do think of getting operated, you will still need to undergo physiotherapy sessions before and after surgery