recurrent injury to knee after repair of meniscus with a know partially torn ACL acl

What treatments are available. Have injured knee three times first time had repair of meniscus with arthroscopy but have injured knee twice since. Weak point with reinjury. MRI has not been done will insist this time but what treatments can be done. Symptoms: Pain,swelling, with diff. ambulating. RICE for 2 days. Please advice