Your MRI shows a partial thickness ACL tear involving approximately 50% of the ACL fibres. The menisci, collateral ligaments and other structures are intact.
A partial ACL tear does not automatically mean surgery. Whether you can be treated successfully with rehabilitation depends mainly on your knee stability, symptoms and activity requirements, which cannot be decided from the MRI alone.
Next Steps
Please consult an orthopaedic specialist for a clinical examination, particularly Lachman and pivot shift testing. If the knee is reasonably stable, a structured physiotherapy programme focusing on range of motion, quadriceps and hamstring strengthening and progressive functional training can often be tried initially.
You do not necessarily need to take medicines for another month just to wait. Medicines mainly help with pain and inflammation and do not heal the ACL tear. The decision regarding surgery should be based on clinical instability, functional demands and response to rehabilitation rather than the MRI percentage alone.
Health Tips
Avoid running, jumping, sudden pivoting and twisting activities until the knee has been assessed and rehabilitation has started. If you have recurrent giving way or instability, get assessed sooner.