Understanding Anterior Knee Pain: Patellofemoral Pain Syndrome

• Patellofemoral pain syndrome (PFPS) is one of the most common causes of anterior knee pain
• The mechanism of action is still not fully understood in PFPS, but it is clear that maltracking of the patella plays some role in the symptomology of both PFPS and chondromalacia patella
• Patients with PFPS often present with anterior knee pain aggravated by activity or prolonged sitting
• Hip and quadriceps strengthening exercises improve pain and functionality and should be recommended in all patients

Patellofemoral pain syndrome (PFPS) is 1 of the most common causes of anterior knee pain and should be included in the differential diagnosis for anterior knee pain in every patient. PFPS is characterized as an overuse injury. The exact mechanism of injury is still under investigation, but it is believed to stem from maltracking of the patella. PFPS commonly presents in adults who complain of anterior knee pain with activity. This pain can lead to significant disability. When treated appropriately, disability and chronicity can be avoided or reduced.