2.3. Outcome Measures
pain
OSTEOARTHRITIS
The Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) was the primary outcome measure of this paper; this is a questionnaire consisting of 3 subsections (pain, stiffness and function) and comprises 24 items [The Visual Analogue Scale is a measure of pain to determine the patient’s perspective of pain level. It may be dependent on the patient’s mental status, but it is very frequently used to evaluate and correlate knee function [Both measures were translated and provided for patients to answer in the hospital and during follow-up visits.