Partial meniscectomy is a prevalent orthopedic procedure globally, though its application has seen a decline in Finland. Despite this, it remains a common intervention in numerous countries.
Long-Term Study Reveals Surprising Outcomes
Recent findings from a decade-long study indicate that patients who underwent partial meniscectomy did not achieve better results compared to those who received a placebo surgery. In fact, these individuals reported increased knee issues and diminished functionality over time. Additionally, they exhibited a greater progression of osteoarthritis and a higher likelihood of requiring further knee surgeries than their counterparts who did not undergo the actual operation.
Innovative Trial Design Enhances Results
The Finnish Degenerative Meniscal Lesion Study (FIDELITY) is notable for its robust methodology, which included a control group undergoing sham surgery. This allowed for a direct comparison of outcomes between the two groups. Participants with degenerative meniscal tears were randomly assigned to receive either the surgery or a placebo, with their progress monitored for ten years.
Teppo Järvinen, a professor at the University of Helsinki and the lead investigator of FIDELITY, highlights the broader implications of these findings: "Our results may illustrate a medical reversal, where widely used treatments prove ineffective or even detrimental."
Rethinking Knee Pain Origins
The traditional belief that knee pain, particularly on the inner side, results from a meniscus tear that warrants surgical intervention may need reassessment. Raine Sihvonen, another principal investigator of the study, states, "This assumption, prevalent in medicine, fails to hold under scrutiny. Current understanding suggests that joint pain, including in the knee, is more closely linked to age-related degeneration."
Concerns Over Risks and Long-Term Effects
Previous observational studies have raised alarms about the potential risks associated with this surgery, including an increased likelihood of joint replacement and complications post-surgery. However, such studies alone cannot definitively establish causation.
"Multiple randomized trials have shown that partial meniscectomy does not enhance patients' symptoms or functionality in the short (1-2 years) or medium (5 years) term. Nevertheless, the procedure remains widely practiced," notes Dr. Roope Kalske, a doctoral researcher and orthopedic specialist.
Resistance to Change in Clinical Practice
Despite the growing body of evidence, the shift in clinical practices has been gradual. For nearly a decade, various independent organizations have recommended discontinuing the procedure, yet prominent groups like the American Academy of Orthopedic Surgeons (AAOS) and the British Association for Surgery of the Knee (BASK) continue to support it.
Collaborative Efforts Behind the Research
This significant study was conducted across five hospitals, showcasing strong collaboration and patient dedication. Remarkably, over 90% of the initial 146 participants completed the final follow-up phase.
The FIDELITY study is part of a larger initiative by the FICEBO research group aimed at evaluating surgical treatment impacts, involving collaboration among several Finnish university hospitals and health institutes.