Meniscal Injury in Runners: More Options Than You Might Think

What is the meniscus?

The menisci are two C-shaped cartilage discs - medial (inner) and lateral (outer) - that sit between the femur and tibia in the knee joint. They act as shock absorbers, distribute load across the joint surface, and contribute to knee stability.

Runners can injure a meniscus through a sudden twist or pivoting movement (traumatic tear), or through gradual degeneration under repeated load (degenerative tear).

Types of tears and their significance

• Traumatic tears (acute injury, often younger runners) - sudden onset, usually with a mechanism (twist, awkward landing). May need surgical assessment.
• Degenerative tears (gradual, often 40+) - common incidental finding on MRI in people with and without pain. Many are asymptomatic.
• Radial tears - cross the full width; poor healing potential
• Peripheral tears - near the blood supply; better healing potential with conservative management

Symptoms

• Medial or lateral joint line pain
• Swelling (often delayed by 24–48 hours)
• Locking or catching sensation
• Pain with deep squatting or pivoting
• Pain localised to the inner or outer knee with running, especially turning

What the evidence says about treatment

For degenerative meniscal tears, multiple high-quality studies now show that physiotherapy-led exercise is as effective as arthroscopic surgery for pain and function at 2 and 5 years. Surgery should not be the first option.

For traumatic tears with significant symptoms, surgical assessment is appropriate.

Conservative rehabilitation

1. Quad strengthening - the primary load-bearing muscle. 3 sets of 12, leg press and step-ups.

2. Hip strengthening - reduces the knee moments that stress the meniscus. Clamshells, hip thrusts, lateral band walks.

3. Single-leg balance - restores proprioceptive input from the knee. 3 × 45 seconds.

4. Squat progression - pain-free squat to 60°, progressing gradually in depth and load.

5. Running gait - higher cadence and shorter stride reduce peak knee load and meniscal compression.

Running during recovery

Reduce volume and avoid pivoting, cutting, and uneven terrain. Flat road running is usually well-tolerated. Return to trail or speed work gradually once pain-free on roads.

Timeline

8–12 weeks for mild to moderate cases with conservative management. More complex or traumatic tears may take longer or require surgical input.