Meniscectomy (Meniscus Debridement)
A partial meniscectomy is an arthroscopic surgery to remove a damaged portion of the meniscus — the C-shaped cartilage disc that sits between the femur and tibia in the knee. Each knee has two menisci (one on the inner side and one on the outer side), and together they act as shock absorbers, distribute load across the joint, and contribute to stability. When part of the meniscus tears in a way that cannot be repaired, a partial meniscectomy trims away the damaged tissue and preserves everything that is still healthy.
Meniscus tears are among the most common knee injuries I treat. In younger patients, they typically happen during a sudden twist, pivot, or awkward landing — common in sports like soccer, basketball, and skiing. In older patients, the meniscus can wear down gradually and tear without a dramatic event at all. Symptoms usually include pain along the joint line, swelling, and sometimes a clicking or catching sensation. Some patients experience locking, where a torn flap of meniscus gets caught in the joint and blocks full motion.
Not every meniscus tear needs surgery. Small, stable tears and many degenerative tears respond well to physical therapy and anti-inflammatory treatment. When symptoms persist — especially mechanical symptoms like catching or locking — or when a tear is large and unstable, surgery becomes the better path. The goal of a partial meniscectomy is to remove only what is damaged and preserve as much healthy meniscus as possible, because the meniscus plays a critical long-term role in protecting the cartilage of the knee.
Video Education
Dr. Merritt has filmed several in-depth videos on Meniscus and Lateral Meniscectomy surgeries with the aim of helping patients understand the condition, the procedure, and what to expect.
Treatment Options
When I recommend a partial meniscectomy, it means the torn portion of your meniscus is in a location or pattern that will not heal with sutures. The inner two-thirds of the meniscus has poor blood supply, and tears in this zone do not have the biological capacity to heal even if repaired surgically. Trimming the damaged tissue and leaving healthy meniscus intact is the right approach for these tears.
The surgery is performed arthroscopically through two small incisions — one for a camera and one for instruments. I examine the entire joint, identify the torn portion, and carefully trim back to stable, healthy tissue. The procedure typically takes about 30 minutes and is done as outpatient same-day surgery at Proliance Surgery Center at Valley. Most patients are home within a couple of hours.
The decision between a partial meniscectomy and a meniscus repair is largely made by the tissue itself. I always try to preserve the meniscus when possible, but if the tear is in an area without blood supply, or the tissue quality is too poor to hold sutures, trimming is the right call. I discuss this openly with every patient before surgery, and we make a plan together based on what the MRI shows — with the understanding that the final decision is confirmed when I see the tear directly during surgery.
One important point I discuss with every patient: removing meniscal tissue does alter the mechanics of the knee over time. Studies consistently show that losing meniscus increases stress on the cartilage surface, which can contribute to arthritis development years down the road. This is exactly why I am conservative with how much tissue I remove — every millimeter of healthy meniscus we preserve matters for the long-term health of your knee.
Recovery and Results
Recovery after a partial meniscectomy is one of the fastest in orthopedic surgery. Because nothing was sewn together, there is no healing tissue to protect — your recovery is driven entirely by controlling swelling and rebuilding quadriceps strength.
You can walk with full weight on your leg immediately after surgery. Most patients are off crutches within a few days. Physical therapy can be done or you can do exercise on your own. The goal is focusing on restoring full range of motion, activating the quadriceps, and managing swelling. The quad muscle tends to shut down temporarily after knee surgery — a reflex response to swelling called arthrogenic muscle inhibition — so getting it firing early is the top priority.
In the first weeks, most patients with desk jobs are back to work and walking comfortably. By four to six weeks, you can expect to be cycling, swimming, and doing light recreational activity.
Return to full sport — including running, cutting, and pivoting — typically happens between eight and twelve weeks, depending on how your quad strength recovers. I use objective strength testing to guide this decision: your quad needs to reach at least 90 percent of the opposite leg before I clear you for sport. Time alone is not enough.
Long-term outcomes after partial meniscectomy are generally very good for symptom relief. Studies show that over 90 percent of patients return to their pre-injury activity level. That said, I am always honest about the tradeoff: removing meniscal tissue does increase the long-term risk of cartilage wear in the affected compartment.
Maintaining quad strength, staying at a healthy weight, and remaining active with appropriate exercise are the best things you can do to protect your knee over time.
Meniscectomy Recovery Timeline
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Injury and Surgery Resources
Dr. Merritt provides detailed instructions and protocols to guide patients through every stage of recovery.
Injury Information
Surgery/Pre-Op Information
Post-Op Instructions
Studies Cited
- Papalia R, Del Buono A, Osti L, Denaro V, Maffulli N. Meniscectomy as a risk factor for knee osteoarthritis: a systematic review. Br Med Bull. 2011;99:89-106. PubMed
- Grindem H, Snyder-Mackler L, Moksnes H, Engebretsen L, Risberg MA. Simple decision rules can reduce reinjury risk by 84% after ACL reconstruction: the Delaware-Oslo ACL cohort study. Br J Sports Med. 2016;50(13):804-808. PubMed
- Return to sport after arthroscopic meniscectomy on stable knees. Knee Surg Sports Traumatol Arthrosc. 2013. PubMed
Common Meniscectomy Questions
Injury Information
A: It depends on the tear. Some stable tears cause minimal symptoms and can be managed without surgery. But tears that are causing mechanical symptoms like catching or locking generally do worse without treatment. Leaving an unstable tear in the joint puts extra stress on the cartilage and can accelerate joint deterioration. If you are having symptoms, it is worth getting evaluated.
A: This is an important conversation I have with every patient. The meniscus protects the cartilage surface of the knee, and having torn tissue does increase stress on that surface over time. When I do surgery, I only remove the torn tissue as to not increase the risk of progression to arthritis. Studies show a higher rate of cartilage wear and arthritis development in the affected compartment after meniscectomy. This is exactly why I preserve as much healthy tissue as possible and why I always try to repair the meniscus when the tear pattern and tissue quality allow it. Maintaining quad strength and a healthy weight are the best ways to protect your knee long-term.
A:Â Meniscus repair requires adequate blood supply at the tear site for healing. The inner two-thirds of the meniscus has very poor blood supply, so tears in this zone will not heal even with sutures. When the tissue cannot support a repair, trimming the damaged portion is the right approach. I always try to preserve and repair when the biology allows it.
A: A partial meniscectomy is an arthroscopic procedure where I remove the damaged portion of the meniscus and leave all the healthy tissue intact. It is not a total removal — the goal is always to preserve as much meniscus as possible.
Surgery Information
A: Arthroscopic meniscectomy is one of the lowest-risk orthopedic procedures. Complications are uncommon and include infection, blood clots, stiffness, and nerve or blood vessel injury. The overall complication rate is very low. The more important long-term consideration is the effect of reduced meniscal tissue on cartilage health, which we discuss before surgery.
A: After a partial meniscectomy, the remaining meniscus can tear again, though this is uncommon. If you develop new symptoms — pain, swelling, catching — come in for evaluation. A new exam and updated imaging will tell us what is going on.
A:Â Most partial meniscectomies are performed under general anesthesia because the procedure is so quick. The anesthesia team will go over your options on the day of surgery. You will need someone to drive you home.
A:Â A partial meniscectomy typically takes about 30 minutes. It is done arthroscopically through two small incisions, and you go home the same day. Most patients are in and out of the surgery center within a few hours.
Post-Op Recovery
A: Most patients just do home exercises on their own, if I feel that you would benefit or if you desire, physical therapy can be done for four to six weeks. PT focuses on swelling control, quad activation, and progressive strengthening. Many patients transition to a home exercise program after the initial phase.
A: Most patients return to low-impact activity like cycling and swimming within four to six weeks. Full return to sport — including running, cutting, and pivoting — typically happens at eight to twelve weeks, once your quad strength reaches 90 percent of the opposite leg. I base the decision on objective testing, not just the calendar.
A: If you have a desk job, most patients are back within a few days to a week. Physical or labor-intensive work typically takes four to six weeks. It depends on your specific job demands.
A: For left knee surgery, most patients can drive once they are off narcotic pain medication — often within a few days. For right knee surgery, you need to be able to brake comfortably and safely, which typically takes one to two weeks. I will clear you when it is safe.
A: No. A brace is not required after a partial meniscectomy. Some patients use a compression sleeve for swelling, but there are no motion or weight-bearing restrictions to enforce.
A:Â Immediately. You can put full weight on your leg the same day. Crutches are for comfort only, and most patients are off them within two to five days.
A:Â Most patients are surprised by how manageable the discomfort is. We use a multi-modal pain approach including anti-inflammatories and oral medications. Pain is typically the worst in the first two to three days and improves steadily. Ice, elevation, and staying ahead of the pain with your medications makes a significant difference. Most patients are off narcotic pain medication within a few days.
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