Meniscus Tears: Symptoms, and Why Most Don't Need Surgery
The knee's shock absorber — and one of medicine's most over-operated injuries
Updated July 20262 minute read
A meniscus tear is damage to the C-shaped cartilage that cushions your knee. Sudden traumatic tears in young athletes sometimes need surgery, but for the far more common degenerative tears in adults over 35, high-quality trials show structured exercise therapy matches surgery's results — without the operating room.
What the meniscus does
Each knee has two menisci — C-shaped pads of cartilage that spread load and stabilize the joint. They're your knee's shock absorbers, and like shock absorbers, they wear.
That wearing matters, because meniscus tears come in two very different flavors:
- Traumatic tears — a twist under load in a younger, active knee. Sudden pain, swelling over a day or two, sometimes catching.
- Degenerative tears — gradual fraying in knees over 35, often with no single injury moment. These are so common they show up on MRIs of pain-free knees routinely, and they frequently travel with early knee arthritis.
Symptoms
- Pain along the joint line (the "seam" of the knee), worse with twisting, squatting, or getting out of cars
- Swelling that comes and goes with activity
- Clicking or catching sensations
- The red flag: a knee locked short of full straightening — that one deserves prompt evaluation
The evidence on surgery (this is the important part)
For degenerative tears, this question has been tested head-to-head in multiple randomized trials — exercise therapy versus arthroscopic surgery — and the consistent finding is that structured exercise matches surgery on pain and function at one to two years. One trial even found the exercise group stronger at three months. That's why clinical guidelines now recommend rehab first for degenerative tears, with surgery reserved for knees that fail it or lock.
For traumatic tears in young athletes — especially repairable tears in the vascular outer zone, or tears alongside an ACL injury — surgical repair often makes sense to preserve the meniscus for the decades ahead.
What PT looks like
Rehab for a meniscus tear isn't waiting-room stretching. It's progressive strengthening of the quads and hips, mobility work to restore full motion, and a graded return to squatting, stairs, and sport. Most plans run 6–12 weeks — see what PT costs for what that investment typically looks like.
When to see someone
Joint-line pain that's persisted more than two weeks, recurrent swelling, or any catching is worth an evaluation — a PT can assess whether your pattern fits rehab-first or needs a surgical opinion. Locked knee? Skip the wait and get seen this week. More on the decision: when to see a PT for knee pain.
Frequently asked questions
Sources (2)
- Kise NJ, et al. Exercise therapy versus arthroscopic partial meniscectomy for degenerative meniscal tear in middle aged patients: randomised controlled trial. BMJ. 2016. — BMJ
- Katz JN, et al. Surgery versus physical therapy for a meniscal tear and osteoarthritis. N Engl J Med. 2013 (METEOR trial). — New England Journal of Medicine
This article is for education only and isn't medical advice. Always talk to a licensed clinician about your specific situation.