1 Before you use it
What it is
The anterior knee pain measure. Thirteen items on the activities that define patellofemoral pain — limp, weight-bearing, walking, stairs, squatting, running, jumping, prolonged sitting with the knees flexed, pain, swelling, abnormal patellar movement, thigh atrophy and flexion deficiency.
The prolonged-sitting item is the classic PFP question and it's built in.
When to reach for it
Patellofemoral pain, at baseline and through a loading programme, at the 6- and 12-week decision points.
Also reasonable in patellar instability, though BPII 2.0 is the condition-specific choice there.
Patterns it serves · 2
2 Giving it
Scoring
Thirteen items, differently weighted, totalling 0–100. Higher is better.
What it doesn’t measure
Hip and trunk strength, or frontal-plane control — which is where patellofemoral treatment actually aims. Measure those separately.
Repeat it
3 Reading the score
Interpreting it
Interpret against baseline.
Read the stairs and sitting items directly. They're the two that track a PFP patient's real week.
Is the change real?
On placement
Patellofemoral pain, runner, 8 weeks of hip and quads loading. Kujala 62 → 75.
Read it as 13 points up, over the 11-point MDC and both MCID figures (10 by distribution, 12 by anchor; measured in patellofemoral pain and instability). Real and meaningful. Now read the stairs and sitting items directly — they are the two that track a PFP week.
Do progress the running load on the stairs and sitting response, not the total, and re-score at 12 weeks.
Student trap. Using it for patellar instability and calling it done. Kujala measures pain; instability is a confidence problem and needs BPII or NPIS.
Official source: null. We don't host the form.
This is a learning tool. It does not diagnose patients and does not replace your clinical educator.
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