Runner's Knee

What it is

“Runner’s knee” is the colloquial name for patellofemoral pain syndrome (PFPS). Pain around or behind the kneecap, usually coming on gradually, worse with activities that load the knee through bending: running, squatting, stairs, hills, and (counterintuitively) long stretches of sitting.

Despite the name, you don’t have to be a runner to get it. We see it in cyclists, hikers, weekend warriors picking up a new sport, lifters whose squat patterns drifted, and 40-something parents who just bumped up their walking mileage. Anyone whose knees are taking more load than the surrounding system has been preparing them for.

What causes it

Runner’s knee is almost always a system problem, not a knee problem. The usual contributors:

• Hip control. Glute med and glute max strength and timing are the single biggest predictors. Knees that fall inward under load tell us the hip isn’t doing its share.
• Quad imbalance. The vastus medialis (inside of the thigh) and the lateral structures get out of balance, pulling the kneecap subtly off its track.
• Foot and ankle mechanics. A stiff big toe or a foot that overpronates loads the knee differently. Sometimes a lot differently.
• Training load that outpaced capacity. A sudden jump in mileage, intensity, or volume, without the recovery and strength work to absorb it.
• Sitting load. Long sitting in flexion compresses the patellofemoral joint and stiffens the surrounding tissue. The “movie theater sign” (pain after sitting through a movie) is classic PFPS.
• Prior injuries that reshaped how you load the leg.

What it feels like

• A dull, achy pain around or behind the kneecap, often hard to point to precisely
• Sharp pain on stairs (especially down)
• Pain after sitting for a while that improves once you stand and move
• Crepitus (grinding or crackling) under the kneecap that may or may not hurt
• Pain that builds with running mileage and lingers afterward

How we treat it

PFPS responds extremely well to a smart, progressive plan. A typical course:

1. Assessment of the whole chain. Hip, knee, ankle, foot. We’re not interested in the knee in isolation; the knee is where the symptom shows up.
2. Manual therapy to release the lateral structures (IT band, lateral retinaculum, vastus lateralis), restore patellar mobility, and address any joint stiffness.
3. Dry needling when there’s significant trigger-point involvement in the quads, ITB, or glutes. Particularly helpful for the deep knots that don’t respond to foam-rolling.
4. Progressive strengthening for the hip stabilizers (glute med, glute max, deep hip rotators) and the quads, calibrated to where you actually are, progressed deliberately.
5. Movement retraining. Running form, squat pattern, stair mechanics. Small changes that don’t require thinking about every step.
6. Load management. What you can keep training, what to swap, and when we add load back.

When dry needling helps

Dry needling is often valuable for:

• Vastus lateralis and IT band trigger points contributing to lateral knee load
• Deep hip rotators and glute med (the muscles you cannot reach with stretching)
• Quad tightness that isn’t yielding to mobility work
• Calf tightness contributing to ankle stiffness up the chain

When to seek help

PFPS that’s been around longer than two or three weeks, that’s progressively limiting your activity, or that’s started bothering you in daily life (not just running) is worth getting evaluated. Earlier care almost always means a faster return to the activities you love, and it dramatically lowers the chance of compensations driving a new injury elsewhere.

Seek immediate medical care for any of the red-flag symptoms above.