Meniscal Tear of the Knee: Symptoms, Diagnosis, Treatment & Recovery

What Is the Meniscus?

The menisci are two C-shaped shock absorbers inside your knee (medial and lateral). They distribute load, improve stability, and protect cartilage. A meniscal tear is a split in this fibrocartilage that can cause pain, swelling, catching, or locking.

• Traumatic tears: common in twisting injuries, often in younger or athletic patients.
• Degenerative tears: fraying or complex tears that occur with age or osteoarthritis.
• Special patterns: bucket-handle (can lock the knee), radial, horizontal, and root tears (detach the meniscus from its anchor).

Common Symptoms

• Pain along the joint line (inside for medial, outside for lateral).
• Swelling (effusion) appearing within hours or the next day after activity.
• Catching, clicking, or locking, especially with squatting or twisting.
• Stiffness and reduced range of motion; difficulty fully straightening the knee.
• Giving way or loss of confidence with pivoting and stairs.

Why Meniscal Tears Happen — Causes & Risk Factors

• Twisting injuries during sport or awkward landings.
• Degeneration in middle age and beyond; small loads can tear worn tissue.
• Associated injuries: ACL tears and cartilage lesions.
• Occupational/repetitive loading (deep squats, kneeling, heavy lifting).
• Pre-existing malalignment or osteoarthritis increasing compartment load.

How We Diagnose a Meniscal Tear

Diagnosis combines a focused history, knee examination, and targeted imaging when needed.

Clinical assessment

• Joint line tenderness, effusion, and range of motion.
• Special tests: McMurray, Thessaly, and duck-walk/squat provocation.
• Assessment of ligaments, patellofemoral tracking, and lower limb alignment.

Imaging

• X-rays to assess alignment and osteoarthritis.
• MRI to define tear pattern, size, and associated injuries; helpful for surgical planning.

Non-Operative Treatment

Many meniscal tears—especially degenerative patterns without locking—improve with structured rehabilitation. We tailor a plan to symptoms, goals, and tear type.

1) Education & load management

• Reduce activities that aggravate twisting and deep squats during flare-ups.
• Use relative rest, ice, and a short course of anti-inflammatories if appropriate.

2) Physiotherapy

• Quadriceps (VMO), hamstring, and hip strength to optimise knee mechanics.
• Range-of-motion restoration and swelling control.
• Progressive return-to-run and change-of-direction programs with criteria.

3) Injections (selected cases)

• Intra-articular corticosteroid to settle synovitis and enable rehab in irritable knees.
• Hyaluronic acid or PRP may be discussed; evidence and goals are considered case-by-case.

Timeline: Many patients improve over 6–12 weeks. Persistent mechanical symptoms (e.g., locking) or failure to progress may prompt a surgical discussion.

When Is Surgery Considered?

We favour meniscal preservation wherever possible. Surgery is considered when there is a repairable tear, locked knee, or symptoms that persist despite best non-operative care—particularly in younger/active patients.

Arthroscopic Options

• Meniscal repair: suturing the tear to promote healing (inside-out, all-inside, or outside-in techniques). Best for peripheral, vertical/longitudinal and some radial/root tears.
• Root repair: re-anchoring the meniscal root to restore hoop stress; important to reduce rapid cartilage overload.
• Partial meniscectomy: trimming unstable fragments when repair is not feasible; we minimise resection to preserve function.
• Concomitant procedures: address chondral flaps, loose bodies, or ligament injuries (ACL).

Risks & considerations

• Infection, bleeding, clots (rare), stiffness, neurovascular irritation.
• Failure of repair or recurrent tearing, especially if rehab milestones are rushed.
• In degenerative knees with advanced osteoarthritis, arthroscopy is less predictable; we may discuss non-operative strategies or knee replacement where appropriate.

More detail: Knee Arthroscopy (Keyhole Surgery).

Recovery & Rehabilitation

Recovery depends on the procedure and your baseline function:

1. After partial meniscectomy: walk the same day in most cases; progressive strengthening; many return to light running around 3–4 weeks if criteria are met.
2. After meniscal repair/root repair: protected weight-bearing with crutches and a brace as advised; avoid deep flexion early; running typically around 3–4 months; pivoting sport commonly at 5–6+ months with objective strength and hop-test milestones.
3. Non-operative: graded activity with symptom-led progressions; return-to-run once swelling and control allow.

Prevention & Self-Care

• Build quadriceps and hip strength to support knee mechanics.
• Warm up well; progress training loads gradually; limit repetitive deep twisting under load.
• Use cross-training during flare-ups to maintain fitness while symptoms settle.
• Optimise footwear and workplace ergonomics for standing/kneeling tasks.

When Should I See a Knee Specialist?

Seek review if you have persistent joint line pain, swelling, locking, or difficulty trusting your knee. Early assessment clarifies the diagnosis and protects joint cartilage with the right plan.

Meniscal Tear — FAQs