The meniscus is the C-shaped cartilage cushion in each knee, and tears are among the most common orthopedic injuries, with roughly 850,000 procedures performed annually in the U.S. Approaches have shifted over the last decade as evidence has accumulated that not every meniscus tear needs the operating room. Meniscus surgery either repairs the torn cartilage with sutures or removes the torn portion (partial meniscectomy), depending on tear location and patient age. The right choice has long-term implications for arthritis risk. This guide covers the decision tree, recovery timeline, and how to weigh surgery against rehab.
What Meniscus Surgery Is and Who Needs It
The meniscus distributes load across the knee. When it tears, the knee may catch, lock, swell, or hurt with twisting. Tears are categorized as traumatic (acute injury, often in younger athletes) or degenerative (gradual wear, common after 40). Surgical options include repair (suturing the tear back together so it can heal) and partial meniscectomy (trimming the torn fragment back to a stable rim). Repair preserves more cartilage but takes longer to heal.
Per AAOS, surgery is most clearly indicated for tears causing mechanical symptoms (locking, catching, giving way), repairable tears in younger patients, and tears that have failed several months of physical therapy. Degenerative tears in arthritic knees often respond to rehab as well as surgery, per multiple randomized trials. For broader background on knee conditions, see our Medical Conditions guide.
How the Procedure Is Performed
Meniscus surgery is performed arthroscopically through two or three small incisions. General or regional anesthesia is standard. The surgeon inserts a camera and instruments, examines the joint, and decides between repair and removal based on tear pattern, location, and tissue quality. Tears in the outer “red zone” with good blood supply heal well after repair. Tears in the inner “white zone” rarely heal, even when sutured, and are typically trimmed.
Repair uses sutures, all-inside devices, or inside-out techniques to approximate the torn edges. The procedure typically takes 30 to 60 minutes for a meniscectomy and 60 to 90 minutes for a repair. Cleveland Clinic notes that most patients go home the same day. A concurrent ACL reconstruction is sometimes performed because cruciate and meniscal injuries often coexist.
Preparation and What to Expect on the Day
Preoperative work-up is minimal for healthy patients: an MRI to define the tear, anesthesia evaluation, and a discussion about what the surgeon plans to do. Many surgeons explain that the final decision (repair vs trim) often happens during surgery once they see the tear. NSAIDs are typically held one to two weeks before surgery. Crutches and a brace are arranged in advance for repair patients.
On the day, allow three to four hours at the surgery center. After a meniscectomy, weight bearing is typically allowed immediately and crutches are used only for comfort. After a repair, weight bearing is often restricted for four to six weeks, and a hinged brace limits flexion to protect the suture line. Pain is usually mild to moderate, well controlled by acetaminophen, NSAIDs, and a short opioid course.
Recovery Timeline and Rehab
Recovery after partial meniscectomy is fast. Most patients walk normally within one to two weeks, return to desk work at three to seven days, and return to running and sport at four to eight weeks. Recovery after meniscus repair is much longer because the suture line must heal. Crutches and brace use are typical for four to six weeks, return to running takes three to four months, and return to cutting sport takes four to six months.
Physical therapy emphasizes range of motion, swelling control, quadriceps activation, and progressive strengthening. Repair patients delay deep squatting and twisting until at least four months post-op. Mayo Clinic notes that successful repair preserves long-term cartilage and reduces arthritis risk compared with removal, which is the main reason surgeons attempt repair when feasible.
Risks, Complications, and Outcomes
Meniscus surgery has a low complication rate. Major complications occur in 1 to 3 percent of cases. Risks include infection (less than 1 percent), DVT (1 to 2 percent), nerve or vessel injury (rare), persistent pain, and stiffness. Repair has a 10 to 25 percent failure rate over 5 to 10 years, with higher rates for complex tears, older patients, and tears in the white zone. Partial meniscectomy preserves immediate function but increases the risk of future arthritis.
When to seek emergency care: Call 911 or go to the nearest emergency room if you experience sudden severe shortness of breath or chest pain (possible pulmonary embolism), calf swelling and pain (DVT), heavy incision bleeding, fever above 101 F with wound drainage, or a sudden inability to bear weight associated with a fall.
Alternatives and When Surgery May Not Be Needed
Degenerative meniscus tears in middle-aged and older adults often respond as well to physical therapy as to surgery, per randomized trials in JAMA and the New England Journal of Medicine. Conservative care includes structured rehab, NSAIDs, weight loss, activity modification, and selective corticosteroid injection. Many tears that look impressive on MRI are not the actual cause of symptoms.
Surgery is more clearly needed for mechanical locking, repairable tears in younger patients, and tears with persistent symptoms after a structured rehab trial. If your tear is associated with arthritis, the conversation may also involve our knee replacement guide. For a related arthroscopic procedure, our knee arthroscopy overview is a useful companion.
Cost Considerations
Meniscus surgery billed costs typically range from $5,000 to $20,000 without insurance for partial meniscectomy and $10,000 to $30,000 for repair. Ambulatory surgery centers offer significant savings. Insured patients commonly pay $500 to $3,000 out of pocket. Cash bundle prices in the $4,000 to $8,000 range exist in some markets for meniscectomy. For broader cost-shopping advice, see our healthcare costs guide.
Frequently Asked Questions
Meniscus repair vs meniscectomy: which is better?
Repair preserves cartilage and reduces long-term arthritis risk but requires a longer recovery and has a 10 to 25 percent failure rate. Partial meniscectomy is faster to recover from but increases future arthritis risk. Repair is preferred when the tear is in a vascular zone and the patient is young.
How long does meniscus surgery recovery take?
Partial meniscectomy: walking in one to two weeks, running at four to eight weeks, full recovery at three months. Repair: brace for four to six weeks, running at three to four months, return to sport at four to six months.
Can a meniscus tear heal without surgery?
Tears in the outer vascular zone occasionally heal with rest, but most tears do not heal on their own. Symptoms can improve substantially with rehab even when the tear is still present, particularly degenerative tears in middle-aged and older patients.
Will I need a knee replacement later?
Partial meniscectomy increases the risk of arthritis and eventual replacement, especially in younger patients. Repair, when successful, reduces this risk. Other factors like alignment, weight, and activity level also matter.
What to Discuss With Your Surgeon
The meniscus surgery decision often hinges on tear location and patient age. Bring questions about whether the tear looks repairable on MRI, the surgeon’s experience with repair, the rehab protocol if a repair is performed, and the long-term arthritis implications of each option. If your tear is degenerative and your symptoms are bearable, a structured 6 to 12 week rehab trial is reasonable before scheduling surgery. Mechanical locking, however, is a clearer surgical indication that should not be ignored.