I am a 26 y/o male competitive long distance runner. I had symptoms consistent with a meniscus tear. MRI results excluded meniscus tears or ligament injuries. However, the diagnosis was surprising.

My Doctor recommended orthoscopic surgery to shave down cartilage on the inner side of my knee. He claims that my knee has cartilage remaining from skeletal development. Normally, this cartilage wears off during the natural devolpment of the skeletal system. Further, the remaining cartilage is causing friction with the ligaments (creating a clicking) resulting in the edema under the patella.

I am slightly suspicious, because I have been running for a long time, and have a very active history.

The other option is to do nothing, but I was warned that this could lead to cartilage damage and arthritis. My doctor claimed the "do nothing option" is acceptable for patients who do not intend on being overly active.

Has anyone heard of this? Is there a condition that I could look up to get more information on this? I am not terrified by orthroscopic surgery, but would prefer to avoid it. I'd rather not sacrifice my hobby, but I might be willing to settle for an option that is more rest and physical therapy than surgical. Thanks for your time.