Hi Mr. lybrate-user considering your Signs and Symptoms I recommend to go for ACL Reconstruction Surgery
as no scope of recovery to Acl years in Evidence based Science as of now.
For Swelling of knee you need to do Strengthening exercises for knee. Apply cool pack, Appropriate Knee brace
, Avoid movements which strain your knee.
If your activities of lifestyle demands more of knee work like sports activity of stair walk then I strongly recommend to go for ACL Reconstruction.
Post Operative ACL Teconstruction rehab will be for next one month for ADL's
3 Months for light Sports Activity
& 6 Months for heavy Sports activity.
Please don't hesitate to contact me for any clarification above provided information.