Common knee surgery may do more harm than good (Dr. Elisabeth Rosenthal, July 13, 2026, CBS News)

Researchers who followed patients for 10 years after they received either the actual procedure, arthroscopic knee surgery to trim degenerative cartilage tears, or merely “sham surgery” — a skin incision — for knee pain, found that the surgery provided little or no benefit and was, in fact, associated with accelerated osteoarthritis and higher rates of reoperation. That generally meant a total knee replacement.

“I don’t know how I would defend this procedure at all,” said one of the study’s authors, Teppo Järvinen, an orthopedist and head of the Finnish Centre for Evidence-Based Orthopaedics.