A valid and reliable clinical outcome measure for patellofemoral instability

Patellofemoral instability can be an extremely debilitating and painful condition. Recognising that the previous outcome measures used to assess patients after treatment were not ideal for patellofemoral instability, Dr Laurie Hiemstra, based at Banff Sport Medicine in Alberta, Canada, designed a new assessment questionnaire specifically for these patients. After testing and researching an initial version, the research team completed further analysis resulting in the Banff Patellofemoral Instability Instrument (BPII) 2.0. The 23 questions in the BPII 2.0 assess patients’ quality of life after injury and treatment.


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