What is Iliotibial Band Syndrome?
Iliotibial Band Syndrome (ITBS), often called runner’s knee, is an overuse injury that causes pain on the outside of the knee. It occurs when the thick band of tissue (iliotibial band) that runs along the outside of the thigh rubs against the femur, leading to irritation and inflammation.
What happens in ITBS?
The iliotibial band becomes irritated due to repetitive friction against the lateral femoral condyle. Pain usually develops gradually and worsens with repetitive activities such as running or cycling.
Common causes
- Overuse from long-distance running or cycling
- Running on banked or uneven surfaces
- Sudden increases in training load
- Weak hip abductors or gluteal muscles
- Tight iliotibial band or surrounding muscles
- Leg length differences or poor biomechanics
Who is most affected?
- Long-distance runners and triathletes
- Cyclists
- Football and AFL players with high running loads
- More common in males for cycling, but common in female runners as well
- In Australia, ITBS is one of the most frequent running-related knee injuries, affecting up to 12% of distance runners
Symptoms of ITBS
- Sharp or burning pain on the outside of the knee
- Pain worsens with running, especially downhill
- Pain often begins after a set distance or time running
- Tenderness over the lateral knee
- Sometimes associated with a snapping or clicking sensation
📞 If you experience persistent outside knee pain while running or cycling, book an assessment at Spinal and Sports Care Bella Vista or Parramatta.
Diagnosis of ITBS
Clinical Tests:
- Ober’s test for ITB tightness
- Noble’s compression test
- Running gait analysis
Imaging:
- MRI and ultrasound are rarely needed but may help rule out other pathologies
- X-rays typically appear normal
Treatment options
ITBS is usually managed non-surgically with activity modification and rehab.
Non-surgical:
- Rest or load management (reduce running mileage initially)
- Ice and anti-inflammatory strategies in acute flare-ups
- Physiotherapy-led rehab focusing on glute and hip strength
- Foam rolling and stretching of the ITB and surrounding muscles
- Running retraining (improving cadence, reducing overstride)
Surgical:
- Rare, considered only in severe chronic cases resistant to conservative management
Role of physiotherapy
- Strengthen hip abductors and gluteal muscles
- Improve biomechanics and running technique
- Stretching and soft tissue release for ITB and quads
- Progressive return-to-running program
Recovery timeline
- Mild ITBS: 4–6 weeks
- Moderate: 6–12 weeks
- Chronic cases: 3–6 months with progressive rehab
Injury grading
- Mild: Pain only after prolonged activity
- Moderate: Pain during activity that limits performance
- Severe: Pain during daily activities, preventing running or participation
Prevention of ITBS
- Strengthen hips, glutes, and core
- Avoid sudden increases in training volume
- Alternate running surfaces to reduce repetitive stress
- Stretch and foam roll regularly
- Correct footwear and running technique
Taping and bracing
- Kinesiology taping may reduce strain on the ITB
- Bracing is rarely required but sometimes used in recurrent cases
When to see a physiotherapist or chiropractor
📞 If knee pain persists for more than 2 weeks or interferes with your running or sport, see Spinal and Sports Care for expert assessment.
