Oct 8th I was in a motorcycle accident (minor). Significant hyperextension of left knee, even heard a "pop" noise. Within 3 hours it had swollen to twice its size, primarily on the upper half of the knee joint. went to ER, no broken bones, discharged me with a leg brace. 60 days in leg brace, and now 30 days walking on it. Almost normal stride now but knee still feels tender and a bit unstable. How long can I wait until I get it surgically repaired? Is there a time limit on the ACL being able to heal on it's own?