What is osteoarthritis?
Osteoarthritis is wear-and-tear of the smooth cartilage covering joint surfaces. Knees and hips, bearing our weight for decades, are affected most. Symptoms build gradually: pain on walking or stairs, morning stiffness easing within half an hour, and difficulty with squatting or sitting cross-legged.
The graded approach that actually works
Treatment is a ladder, not a leap to surgery. Step one: weight management — every kilo lost reduces knee load several-fold while walking — plus quadriceps-strengthening exercises, which genuinely reduce pain. Step two: medicines for flares and physiotherapy for function. Step three, for selected patients: targeted injections. Surgery sits at the top of the ladder, for those whose pain and X-rays justify it.
When does replacement make sense?
When pain meaningfully limits daily life — walking distance, sleep, stairs, independence — despite a proper trial of conservative treatment, and X-rays show advanced damage. Done at the right time, knee and hip replacement are among the most successful operations in medicine, with most patients walking with support within days and returning to routine life over about three months.
Questions to ask before deciding
Ask how advanced your X-ray changes are, what non-surgical options remain genuinely untried, what the realistic recovery timeline looks like, and how long the implant is expected to last at your age and activity level. A good surgeon welcomes these questions.
The bottom line
Neither suffer silently nor rush to surgery. Graded treatment serves most people well for years; timely replacement serves the rest reliably. The right answer depends on your symptoms, your X-rays and your life — not on a neighbour's experience.