For years, meniscus surgery has been one of the most commonly performed orthopedic procedures in the United States. The logic seemed straightforward: if a torn or damaged meniscus is causing knee pain, removing or trimming the damaged tissue should help. But emerging research — including a landmark study out of Finland — is raising important questions about whether that approach may sometimes do more harm than good over time.
In this interview on KUSI News in San Diego, Dr. Mona Hacker, Director of Horizon Clinical Research, walks through what the Finnish research found, why it matters for patients with knee pain, and why regenerative options deserve serious consideration before reaching for a surgical solution.
What the Finnish Study Found
The Finnish research, which followed patients over several years after meniscus surgery, found that in some cases, removing meniscal tissue was associated with accelerated progression of knee osteoarthritis. This is a significant finding — the meniscus is not simply a damaged structure to be trimmed away. It is a load-distributing cushion that plays a critical role in protecting the joint surface.
When meniscal tissue is removed, even partially, the mechanics of the knee change. Forces that were once distributed across the joint are now concentrated in a smaller area — and over time, that increased stress can contribute to cartilage breakdown and the progression of arthritis.
For patients who are already dealing with early or moderate arthritis alongside a meniscus issue, surgery that removes tissue may accelerate exactly the condition they are trying to avoid.
Not All Meniscus Surgery Is the Same
It is important to note that meniscus surgery covers a range of procedures. There is a meaningful difference between a partial meniscectomy — where damaged tissue is removed — and a meniscus repair, where the goal is to preserve and restore the tissue. The Finnish findings are most relevant to meniscectomy, particularly in patients whose underlying problem includes arthritic changes.
This distinction matters because patients are often presented with surgery as the natural next step when conservative treatment has not fully resolved their pain. The question worth asking is: what kind of surgery, and at what cost to the long-term health of the joint?
Why Regenerative Options Are Worth a Closer Look
Regenerative approaches to knee conditions — including biologic therapies and investigational treatments currently being studied in clinical trials — take a fundamentally different approach. Rather than removing or altering tissue, the goal is to support the body's own healing processes, reduce inflammation, and address the underlying biology of joint degeneration.
For patients with meniscus-related pain and early arthritis, this may mean:
- Preserving the meniscus rather than removing it
- Targeting inflammatory pathways that drive cartilage breakdown
- Exploring biologic treatments that may slow or modify disease progression
- Participating in clinical research that gives early access to emerging therapies
None of this means surgery is never the right answer — for some patients with certain types of tears, surgical repair remains appropriate. But the Finnish study is a reminder that the decision deserves careful thought, particularly for patients where arthritis is already part of the picture.
What Horizon Clinical Research Is Doing
Horizon Clinical Research in San Diego is currently enrolling qualified participants in studies investigating new approaches to knee osteoarthritis and joint health. These FDA-regulated trials offer access to investigational treatments at no cost to participants, along with close monitoring by our research team.
If you have knee pain, have been told you may need meniscus surgery, or are dealing with arthritis that hasn't responded adequately to standard care, we encourage you to find out whether a current study may be an option for you.