1 Before you use it
What it is
An alternative to BPII 2.0 for patellar instability, asking how often the patella feels unstable across a list of specific activities and positions.
Its structure is activity-by-activity, which some clinicians find more directly translatable into a programme.
When to reach for it
Patellar instability, as the BPII alternative. Pick one and stay with it.
Patterns it serves · 1
2 Giving it
Scoring
Items rated for frequency of instability across activities, converted to 0–100. Higher means more instability. Note the direction is the opposite of BPII.
What it doesn’t measure
Anatomical risk factors, strength, or psychological readiness in the way BPII's emotional domain does.
3 Reading the score
Interpreting it
Interpret against baseline.
Is the change real?
Student trap. Switching between NPIS and BPII mid-episode. They run in opposite directions.
Official source: pmc.ncbi.nlm.nih.gov. 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.