1 Before you use it
What it is
The condition-specific measure for patellofemoral instability, and the reason that page has a PROM. Twenty-three visual-analogue items across symptoms and physical complaints, work and school, recreation and sport, lifestyle, and social and emotional health.
When to reach for it
Patellar dislocation and recurrent patellofemoral instability — baseline, through rehabilitation, and at return-to-sport.
Pair it with the 0–10 confidence rating the patellar instability page asks you to track. Both point at the same thing and the rating is free to repeat weekly.
Patterns it serves · 1
2 Giving it
Scoring
Visual-analogue items averaged to 0–100. Higher is better.
What it doesn’t measure
Anatomical risk factors, strength or frontal-plane control — and those are what actually drive recurrence. Screen morphology separately.
Repeat it
3 Reading the score
Interpreting it
Interpret against baseline.
The social and emotional domain is the point, exactly as it is with WOSI at the shoulder. Instability is a confidence problem, and a physically recovered patella that the patient doesn't trust is still an unsolved problem.
Is the change real?
On placement
Second patellar dislocation, managed conservatively. BPII 2.0 was 38 at intake and 51 at the 8-week review.
Read it as 13 points up, clearing the 9.5-point MCID — measured in a recurrent-dislocation surgical cohort, so treat the transfer to a non-operative knee as an assumption you state. Then read the social and emotional items: a knee that is stronger but still not trusted has not finished.
Do progress the plyometric and change-of-direction work, and re-rate before any return-to-sport decision. Confidence is the outcome here, not quads strength.
Student trap. Using Kujala for an instability patient. Anterior knee pain and patellar instability are different problems with different instruments.
Official source: bsmfoundation.ca. 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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CliniStudy is in beta. One tap is enough — it decides what gets fixed first.