10-Year Trial Finds Partial Meniscectomy Fails Patients, Raises Later Knee Surgery Risk
Updated
Updated · SciTechDaily · May 11
10-Year Trial Finds Partial Meniscectomy Fails Patients, Raises Later Knee Surgery Risk
5 articles · Updated · SciTechDaily · May 11
A 10-year FIDELITY follow-up found partial meniscectomy did not improve symptoms or knee function versus sham surgery in patients with degenerative meniscal tears.
Patients who underwent the procedure had more symptoms, poorer function, greater osteoarthritis progression and a higher likelihood of later knee surgery than the placebo-surgery group.
146 patients were randomized across five Finnish hospitals, and more than 90% remained in the study at the final assessment, strengthening the long-term comparison.
The findings deepen concerns from earlier randomized and registry studies and frame the operation as a possible medical reversal despite its continued use in many countries.
Guidelines from several non-orthopedic groups have urged the procedure be dropped for years, but AAOS and BASK still endorse it, underscoring resistance to abandoning established surgeries.
If surgery fails to fix knee pain, could a new therapy targeting inflammation finally offer a real cure?
A top knee surgery is now proven ineffective. Why do official medical guidelines still endorse this harmful procedure?
The 'placebo' surgery beat the real one. What does this reveal about the true nature of chronic pain?
The 10-year results of the FIDELITY trial, published in 2026, have delivered a major medical reversal by showing that partial meniscectomy for degenerative meniscal tears offers no benefit and may even cause harm. This challenges a widely practiced orthopedic surgery and questions its efficacy and safety. The trial was rigorously designed to test the long-held belief that knee pain from a meniscus tear is directly caused by the tear and can be fixed by trimming the cartilage. The findings urge a rethinking of surgical treatment for knee pain related to degenerative meniscal tears.