how soon can you resume physical activity after knee-replacement surgery?
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total joint-replacement surgery is a popular option for osteoarthritis sufferers who want to restore knee function and resume their active lifestyle, jill barker writes. and with the surgery less invasive, outcomes more positive and recovery vastly improved in recent years, people are opting in at an increasingly younger age. experts suggest more than half of knee-replacement surgeries will be performed on people younger than 65 by 2030.
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often referred to as the “wear and tear” arthritis, osteoarthritis occurs when the body no longer repairs joint tissue damaged from aging, injury, obesity or genetics. most common in the knee, there is no cure. instead, pain and restrictions to physical activity steadily increase and quality of life decreases as the joint continues to degrade.
total joint-replacement surgery is a popular option for osteoarthritis sufferers who want to restore knee function and resume their active lifestyle. and with the surgery less invasive, outcomes more positive and recovery vastly improved in recent years, people are opting in at an increasingly younger age. experts suggest more than half of knee-replacement surgeries will be performed on people younger than 65 by 2030.
much of the motivation for having a knee replaced at a younger age is to get back to an active lifestyle that was curtailed by osteoarthritis. but how realistic is it to think you can return to where you left off after being sidelined for months or years by knee pain and diminished function? advice from health-care professionals is typically inconsistent, especially when it comes to specifics around the type, intensity and the timing of return to sports/physical activity.
evidence-based information offers slightly better insight, though results vary depending on the type of physical activity studied. studies suggest the average time it takes to return to sport is 16-24 weeks post-surgery, with a resumption of low impact sports like swimming, cycling, golf and walking more common than a return to high impact activities like running, basketball and soccer.
hoping to fill in some of the knowledge gaps, a group of physicians from the cleveland clinic in ohio followed the progress of 1,464 individuals who underwent knee-replacement surgery, including in a check-in one year later.
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at the time of the 12-month post-surgical follow-up, more than half of those who played sports prior to surgery returned to play, most within 12 weeks of leaving the hospital. this aligns with previous studies reporting pain and physical function is markedly improved three months post-op and reaches peak improvement by six months.
individuals most likely to return to sports were younger, male and had a lower bmi (body mass index) and less medical complications than the rest of the study subjects.
“notably, we found that preoperative sports participation level was the strongest predictor of postoperative return to sports — with both recreational and competitive athletes having 10-fold greater odds of returning compared with non-athletes,” the study’s authors said.
but it’s not only the added motivation of returning to their active lifestyle that gets individuals back up to speed after knee-replacement surgery. a japanese study reported the greater the strength in the affected knee and the higher the daily step count prior to surgery, the higher the step count and gait speed post-surgery.
“the level of preoperative physical activity is an important factor affecting the level of postoperative physical activity,” the researchers said.
keeping as active as possible, even if you need to modify your activity, in the months leading up to surgery increases the chances of a return to sports and physical activity. the better shape you go into the surgery the more likely you are to have a speedy return to play.
strength training, cycling and swimming are some of the activities that can usually be maintained while waiting for surgery. strength training in particular has proved effective in helping relieve or lessen the pain of knee osteoarthritis. and the greater the number of steps you take a day will certainly pay off during the first few weeks of recovery.
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also important to increasing the odds of a quick return to sports is not waiting too long before deciding on surgery. wait times for knee-replacement surgery vary by province, but the longer you wait the more severe the pain and loss of function and the less likely you are to walk, hit the gym and continue to be active. with that lack of activity there’s also an increased likelihood of weight gain, de-conditioning and a loss of strength on the affected leg, three markers that delay the return to sport after surgery. and with experts suggesting the risk of having a serious cardiac event is reduced by an estimated 12 per cent after a total knee replacement, the health benefits of surgery and a quick return an active lifestyle are indisputable.
as for recommendations regarding return to sport, universal guidelines are still lacking, which makes it important to initiate a discussion with your health-care provider. keeping in mind all patients present with varying health and sports participation history, be sure to share your goals for return to play/physical activity and be specific on the type and intensity of activity you have in mind.
it’s likely low- and medium-impact activities will get the green light, but discussion surrounding returning to high-impact activities (running) or activities with physical contact (soccer and hockey) or which place high stress on the knees (some types of downhill skiing) may include recommendations for some modification. the important point is a return to sports and physical activity is essential to maintaining good health and wellbeing, so don’t be afraid to get that new knee moving.
this article was originally published on the montreal gazette on march 1, 2026.
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