American Board of Internal Medicine (ABIM) Certification Practice Exam

What type of pain is typically associated with patellofemoral pain syndrome?

1. Lateral knee pain

2. Anterior knee pain

3. Posterior knee pain

4. Medial knee pain

The correct answer is: Anterior knee pain

Patellofemoral pain syndrome is most commonly associated with anterior knee pain. This condition typically arises due to issues with the patella (kneecap) and its alignment during activities that load the knee joint. Patients often report a dull, aching pain in the front (anterior) part of the knee, particularly during activities involving knee flexion, such as climbing stairs, squatting, or sitting with the knees bent for long periods. The nature of the pain is related to the dynamics and mechanics of how the patella moves over the femoral groove. Factors contributing to this syndrome include muscle weakness, tightness in the quadriceps or hamstrings, and poor tracking of the patella during movement. The anterior location of the pain is a key diagnostic feature, distinguishing it from pain related to other conditions affecting different regions of the knee, such as lateral, posterior, or medial pain, which would suggest alternative pathologies. Understanding this characteristic of patellofemoral pain syndrome is vital for accurate diagnosis and treatment planning.