Torn Meniscus Repair
The meniscus is a pair of C shaped cartilage wedges sitting between the thigh bone and the shin bone, and their job is to spread load across the knee rather than let it concentrate on a small area. Lose one and the joint surface takes a punishment it was never built for, which is why meniscus tears matter beyond the pain they cause.
Not every meniscus tear needs surgery, and the ones that do are not always the ones that hurt most. Steven Struhl, MD has performed more than 5,000 arthroscopic procedures across a career in practice since 1991, is board certified in orthopedic surgery and separately in sports medicine and arthroscopic surgery, and is a member of the Arthroscopy Association of North America.
How the Meniscus Tears
- Traumatic Tears: a twisting injury on a planted foot, common in cutting and pivoting sports.
- Degenerative Tears: gradual weakening of the tissue with age, sometimes with no clear event.
- Root Tears: the meniscus detaches at its attachment, which functionally removes it entirely.
- Bucket Handle Tears: a large fragment displaces into the joint and can lock the knee.
Root tears deserve particular attention. When the meniscus detaches at its anchor, it can no longer distribute load at all, and the knee behaves as though the meniscus were absent even though it is still there. They are missed regularly on imaging.
Torn Meniscus Symptoms
- Pain Along The Joint Line: tenderness at the inner or outer edge of the knee.
- Swelling: developing over hours rather than immediately, unlike a ligament injury.
- Catching Or Locking: a mechanical block to full straightening, suggesting a displaced fragment.
- Giving Way: the knee buckling, particularly on stairs or uneven ground.
Does a Meniscus Tear Need Surgery
This question has changed considerably over the last decade, and a lot of published research now says less surgery rather than more.
Degenerative tears in an arthritic knee frequently do just as well with physical therapy as with arthroscopic surgery, and operating on them can accelerate the underlying arthritis. Traumatic tears in a younger knee are a different case, particularly where the fragment is catching or blocking motion. A locked knee that will not fully straighten is closer to urgent.
Meniscus Repair Versus Removal
- Meniscus Repair: the torn edges are sutured together, preserving the tissue and its function.
- Partial Meniscectomy: the damaged fragment is trimmed away, leaving the healthy remainder.
- Root Repair: the detached attachment is reattached to bone, restoring load distribution.
- Non Surgical Care: therapy, activity modification, and time, appropriate for many tears.
Repair is preferred wherever the tear pattern and blood supply allow it, because a preserved meniscus continues protecting the joint surface. The outer third has blood supply and can heal. The inner two thirds largely cannot, which is why some tears are trimmed rather than repaired.
Recovery After Meniscus Surgery
- After Trimming: weight bearing is usually immediate, with return to activity in three to six weeks.
- After Repair: protected weight bearing for roughly six weeks while the tissue heals.
- Motion Restrictions: deep flexion is limited early after a repair to protect the suture line.
- Return To Sport: roughly three months after trimming, four to six months after a repair.
The longer recovery after repair is the trade for keeping the meniscus, and for most younger patients it is worth making.
Frequently Asked Questions About Meniscus Tears
Can a torn meniscus heal on its own?
Tears in the outer third have blood supply and can heal, sometimes without surgery. Tears in the inner two thirds have little blood supply and generally do not heal, though many become comfortable and functional with therapy even though the tear remains.
Do I need surgery for a meniscus tear?
Frequently not. Published research has shown that degenerative tears in arthritic knees often do as well with physical therapy as with surgery. Surgery is more clearly indicated for a knee that locks or will not fully straighten, and for traumatic tears in younger patients.
What does it mean if my knee locks?
A locked knee usually means a fragment of torn meniscus has displaced into the joint and is physically blocking motion. That is one of the clearer indications for arthroscopic surgery, and it is worth being seen promptly rather than waiting to see whether it resolves.
What is a root tear and why does it matter?
A root tear is a detachment of the meniscus at its bony attachment. Because the meniscus works by distributing load around a ring, losing the attachment means it can no longer do that job at all, and the knee behaves as though the meniscus were removed. Root tears are frequently missed and are often repairable.
Repair or remove, which is better?
Repair, wherever the tear pattern allows it, because preserving the meniscus protects the joint surface long term. Removal is faster to recover from but leaves the knee with less protection, which is why repair is preferred particularly in younger patients.
How soon can I return to sport?
After a partial meniscectomy, most patients return to sport around three months. After a repair, four to six months, because the sutured tissue needs time to heal and early deep loading can undo it.
Schedule a Knee Evaluation in New York City
A knee that swells, catches, or gives way after a twisting injury is worth examining properly, particularly since the decision to operate on a meniscus tear has become more selective rather than less over the past decade. Dr. Struhl evaluates knee injuries at his Manhattan and White Plains offices and reviews outside MRI studies for patients traveling from elsewhere. Contact the practice to schedule an appointment.
