Prolo Functional Economic Outcome Rating scale

The Prolo Scale has been adopted for clinical examination for 20 years because it is easy to administer and useful to compare significant amounts of data from surgical studies carried out at different times. Although several authors demonstrated the scale sensitivity among a battery of tests, no thorough validation study was found in the current literature.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3828498/#:~:text=Description%20of%20the%20Prolo%20Scale&text=It%20is%20divided%20into%20an,the%20best%20(Table%202).