The New England Journal of Medicine recently published results from a study seeking to evaluate the effectiveness of arthroscopic knee surgery to repair meniscus tears:  Arthroscopic Partial Meniscectomy for Degenerative Tear — 10-Year Outcomes | New England Journal of Medicine

The original intent of the study according to orthopedic surgeon Teppo Järvinen, MD, PhD, of the University of Helsinki was that of an efficacy trial; to demonstrate that the procedure could work and deliver some kind of measurable long-term benefits.  Instead, what the study indicated was the opposite.  Patients who underwent the surgery fared worse than the control group, displaying more symptoms, greater reduced function and faster progression of osteoarthritis than their counterparts who did not receive the surgery.

The study, a ten-year effort known by the acronym FIDELITY (Finnish Degenerative Meniscal Lesion Study) was the result of collaboration between the university hospitals of Helsinki, Kuopio and Turku, Hatanpää Hospital in Tampere, Hospital Nova in Jyväskylä and the Finnish Institute for Health and Welfare.

August 22, 2026

Sources

New England Journal of Medicine - Arthroscopic Partial Meniscectomy for Degenerative Tear — 10-Year Outcomes | New England Journal of Medicine

Medscape Medical News - 10-Year Data Confirm No Benefit From Knee Arthroscopy

The Science Blog - A Common Knee Surgery Has Been Failing Decades, May Make Things Worse - ScienceBlog.com