marzNC
Angel Diva
My understanding is basically that the inability to heal tears on your own is only restricted by blood flow. I believe that the MCL has better blood supply than the ACL, and things like the meniscus have blood vessels only in certain areas so your chance of healing is dependent on where the tear is.
Yep. The meniscus areas are called red-red, red-white, white-white with red-red being the thickest and closest to the outside. Since my 2-3cm tear was in the red-red, my ortho said it could heal without intervention. He was unwilling to give a timeframe though. What I found online implied 6-12 months.
An ACL has too little blood flow partially because it's completely inside the knee. So the special fluid in there is a factor. Low blood flow is one reason "repair surgery" proved to be ineffective when it was done 20-30 years ago.