Hi, thanks for writing to HCM.
scan of knee joint is necessary to exactly assess the extent of damage to the ligaments and meniscii. (I'm not sure whether you underwent MRI scan at the time of injury
Minor and less severe injuries of both LCL and Meniscus
tear can be managed non-operatively by -
* activity modification by avoiding impact sports which causes more strain on the knee joint and using a hinged knee brace
* using an elastic compression bandage to reduce the swelling
* Ice packing to alleviate the pain
to strengthen the quadriceps muscle
If the symptoms are not resolving, then surgical intervention may be needed.
Consult an arthroscopic surgeon for further management.
Hope this information is helpful. Good day