Procedural Treatments for Knee Osteoarthritis: A Review of Current Injectable Therapies

Table 2

Overview of the Western Ontario and McMaster Universities Osteoarthritis Index scoring system (WOMAC). Items in each category are assigned a numerical score from zero to four, with higher scores indicating greater disability.

Category	Description of items in each category
Pain	5 items: standing upright, using stairs, sitting or lying, during walking, and in bed
Stiffness	2 items: after waking and later in the day
Physical function	17 items: light domestic duties, heavy domestic duties, getting on/off toilet, lying in bed, rising from bed, getting in/out of bath, getting in/out of car, putting on socks, taking off socks, walking on a flat surface, bending to floor, descending stairs, ascending stairs, sitting, rising from sitting, standing, shopping