Knee Osteoarthritis

Often it isn't either/or. Degenerative meniscal tears are common in osteoarthritic knees whether or not there are symptoms ¹, so a scan reporting a meniscus tear alongside arthritic change is usually part of the same picture, not a separate problem needing its own operation.

Two other patterns are worth telling apart. Pain at the front of the knee, around the kneecap, worst on stairs and after long sitting, fits patellofemoral pain syndrome. Pain on the outside of the knee that builds through a run and settles with rest fits ITB syndrome. Neither is arthritis; both are managed differently.

If your symptoms and examination are typical, knee osteoarthritis can be diagnosed without a scan or any other test ¹. Your clinician takes a detailed history of your pain, stiffness and movement, and asks how the knee affects your work, daily tasks and the things you care about ¹. Then they examine the knee and watch you walk, checking movement, joint-line tenderness, alignment, swelling, and crepitus, the grating feeling a joint can make ¹.

More tests are for things that don't fit: an old injury to the knee, morning stiffness that drags on, symptoms getting worse quickly, a hot swollen joint, or pain that might be coming from the hip or spine ¹. A doctor might also order tests if it isn't clear which type of arthritis you have ⁸.

Does the exercise actually work? Here's the honest version. Across 139 trials and 12,468 people, exercise probably improves pain, function and quality of life in the short term, but the authors concluded those benefits were "of uncertain clinical importance", on low-to-moderate certainty evidence from trials mostly at unclear or high risk of bias ². A separate trial of 377 adults found high-intensity strength training was no better than lighter training or a control group at 18 months ³, though reassuringly, the heavy loading didn't increase compressive force through the knee ³.

That's not an argument for doing nothing. It's an argument against anyone selling you a magic technique. No exercise type has been shown to outperform another, and benefit doesn't track the number of sessions prescribed ^2,7. What's left is individualising the program to your knee and your life, and helping you keep it going, and we'd rather be straight about that.

Knee osteoarthritis is managed, not healed, so on The Well Motion Recovery Path™ the phases track what your knee can do. You move up when it copes with more, not when a date arrives.

• Reset: the first weeks, and any flare after that. We start exercise at a level your knee tolerates now, adjusted to your pain ¹, with taping or a brace ⁷ and manual therapy in support ⁷. Expect some pain while you exercise, which is normal ¹. We move you on once a session no longer leaves the knee more swollen the next day.
• Rebuild: the longest phase. Strength work at least three times a week, at an effort that feels hard ⁶, with the tape coming off as you get stronger. Expect good weeks and bad ones. You step up a stage each time the exercises feel easy ⁶.
• Return: stairs, long walks, work or golf: whatever you named at the start. We test those tasks, not the x-ray. You leave with a program and a flare plan that includes pacing ¹.

How long it usually takes. There's no cure ⁸, so there is no healing date. In a review of 12 trials, large improvements in pain and function were most often seen with strength programs lasting 8 to 12 weeks ¹². The benefits measured in trials are short term ², which is why the exercise carries on after you finish with us.

Flares aren't random: a 13-week study of 744 adults found 13 things that made one more likely over the next day ⁹. Nobody has yet tested whether steering around them prevents flares, but they show where to look:

• A knee that buckles. The strongest trigger by a distance: the knee giving way raised the odds of a flare about nine times ⁹. If it's happening, tell your physio.
• Long stints without a break. A lot of squatting or kneeling, heavy lifting, or standing for long periods without a rest each roughly tripled the odds ⁹. A smaller diary study found much the same ¹⁰. That's what pacing is for ¹.
• A bad night or a low mood. Both were linked to flares ⁹, and sleep and stress are on the clinical care standard's list of things you can change ¹.
• Weight, if it applies to you. Across 13 trials, meaningful pain relief showed up once people lost at least 7% of their body weight ¹¹. That's one for your GP or dietitian.