Re: 3rd degree ACL tear & medial meniscus tear
I agree with Jenny. If your knee is locking either a surgeon or PT may be suggesting some kind of bracing to protect the knee and avoid further problems. Get a consultation with an orthopedic surgeon that is very "sports medicine" oriented. My surgeon works with the local professional hockey team and spring training teams. For things like ACL a doctor who is "performance" oriented is the best.
Rt thumb fusion '13. R&L thumb arthroplasty '12 ; RT TKR & Bilat CTS' 11. Fusions: L5-S1('87), L4-S1('93), C5-C7('06), L3-S1('10), C4-C5('13). C5-C7 foraminotomy '08