• Evaluating symptoms and function in patients with anterior knee pain (Patellofemoral Pain Syndrome).
• Screening for functional limitations specifically related to patellofemoral loading.
• Monitoring response to physical therapy or surgical stabilization for instability.

• 1. Limp / Support requirements.
• 2. Pain during stairs, squatting, or prolonged sitting (Theater Sign).
• 3. Stability (Giving way).
• 4. Muscle atrophy and presence of effusion.
• 5. Abnormal patellar tracking / subluxation events.

Individual items are weighted based on their clinical impact. The points are summed for a total of 0 to 100.

• The "Sitting with knee flexed" item is key for identifying peripatellar irritation (Movie theater sign).
• Kujala scores are strongly correlated with the quality of eccentric loading exercises during rehab.
• MCID: Typically 8 to 10 points.

• Low Scores (<70): Prioritize hip abductor and VMO strengthening, and evaluate foot mechanics (over-pronation).
• High Participation Demand: Ensure the patient can perform single-leg squats without pain before return to pivoting sports.
• Instability Focus: If the "Subluxations" item is the primary factor, consider MPFL evaluation (PISS).