Negative knee arthroscopy: Is it really negative?
A significant number of patients felt that they were better after the knee arthroscopy. The reason for this is not entirely clear. It may well be attributable to a placebo effect, the fact that patients now know that there is no abnormality and learn to live with the symptoms, or there may be an additional benefit of the procedure itself.
Classification based on pathologic and immunohistochemical predictors is superior to that based only on molecular predictors on prognosis. Classification based on 5m could identify additional different prognoses in patients with stage II disease.