Your injury pattern indicates high energy trauma.
Conservative or operative management depends on your need, profile and lifestyle.
If you lead a sedentary lifestyle, you may not need surgery.
But if you play sports, or are active otherwise , you may need ACL reconstruction if if causes instability or discomfort. Meniscus also might need to be treated if it causes locking or FB sensation.
Next Steps
consult orthopaedics surgeon and share MRI.
Health Tips
do not ignore your injury.