since retiring roughly a year ago, darrell mater* of grimsby, ont., has been enjoying activities he would’ve found impossible just months earlier. now 62, mater golfs once or twice a week, and he and his wife have strolled the shores of virginia beach and wandered up and down the hilly streets surrounding the colosseum in rome.
in october of 2023, however, mater was experiencing grinding knee pain that severely curbed the distance he could walk, and made climbing stairs a halting, jaw-clenching misery. “i’d have to haul myself up one step at a time,” he recalls. pain robbed him of any pleasure from playing golf, even if he used a cart. “my knee was inflamed — it was just on fire,” mater says.
after physiotherapy and chiropractic treatments failed to help, mater turned to his family doctor, who referred him to a specialty clinic. there, mater was officially diagnosed with osteoarthritis (oa) of the knee.
like mater, an estimated four million canadians — roughly one in seven adults — are living with osteoarthritis, and the joint most commonly affected is the knee. while prevalence rises with age, nearly one-third of people with oa of the knee report being diagnosed before age 45.
“osteoarthritis refers to the wearing down of a joint that happens over time,” explains dr. darren de sa*, an orthopedic surgeon and assistant professor at mcmaster university in hamilton, ont. as the slippery cushion of cartilage in the joint erodes, the body releases substances that promote joint inflammation, pain and stiffness.