Patient question
What does patellofemoral pain feel like, and how do I know it is that?
Quick answer
Patellofemoral pain usually feels like a dull, diffuse ache around or behind the kneecap, worse on stairs, squatting, kneeling and after sitting with the knee bent. Swelling, locking and true giving way are uncommon, and their presence points to another problem, says Dr. Pablo Gelber, knee surgeon at Aman Hospital in Doha.
The typical pattern
Most people struggle to point to one spot. They rub a hand around the front of the knee or describe the pain as being behind the kneecap. It tends to build gradually over weeks rather than starting with a single injury, and it often affects both knees, one more than the other.
The ache is linked to load on the kneecap joint, so it follows what you do:
- Going down stairs or walking downhill
- Squatting, lunging or getting up from a low chair
- Kneeling
- Sitting for a long time with the knees bent, then standing up
- Running, especially longer runs or hills
Sounds and sensations
Many people notice grinding or crackling under the kneecap. On its own, painless crackling is common and not a sign of damage. Some describe a brief catch or a feeling that the knee might buckle on stairs; this is usually the quadriceps switching off because of pain rather than a loose ligament.
Features that suggest something else
These are not typical and deserve an examination:
- Visible swelling, especially after activity
- The knee locking so it cannot fully straighten
- The kneecap shifting out of place
- Pain that started with a twist, fall or blow
- Sharp pain at one point, such as just below the kneecap (more like a tendon problem)
- Pain at night or at rest, fever or a hot red knee
When to book an assessment in Doha
If the ache has lasted more than six weeks despite reducing the activity that triggers it, or any of the features above are present, see a knee specialist. At Aman Hospital Dr. Gelber examines kneecap tracking, hip and thigh strength and alignment, and decides whether imaging is needed at all.
Frequently asked questions
Can patellofemoral pain affect both knees?
Yes. It is often bilateral, which is one clue that it is a load problem rather than a single injury.
Why does it hurt more after sitting?
With the knee bent the kneecap is pressed against the thigh bone for a long time. Many people call this the moviegoer sign.
Related
