- Most worn knees should start with exercise, weight care and physical therapy, not a scalpel.
- PRP and stem cells are options for mild to moderate wear after the basics stop being enough.
- A specialist reviews your X-ray or MRI for free, so your plan is designed for your knee.
Somebody just said the words knee replacement to you. Maybe a surgeon, maybe an X-ray report, maybe your brother-in-law at a barbecue. And now you are wondering whether that is the only road left.
It usually isn’t the first one. A replacement is a good operation for the right knee. But it is a bit like remodeling the whole kitchen because the faucet leaks: sometimes the kitchen really is finished, and often there are steps worth taking first. Here they are, in the order most specialists would suggest them.
What should you try before anything else?
The unglamorous basics do more than people expect. Major osteoarthritis guidelines put them first for a reason: they are safe, cheap and they work for many knees.
- Exercise and physical therapy. Stronger thigh muscles take load off the joint. This is the single most recommended step.
- Weight care. Even a modest loss can ease knee pain if you are carrying extra weight, because every step multiplies the load.
- Medication. Paracetamol or anti-inflammatories, oral or as a gel, chosen with your doctor for safety.
- A brace or insoles. Helpful when the wear is on one side of the knee or the leg is out of line.
- Injections. Cortisone can calm a flare for a while. Hyaluronic acid is another option your doctor may suggest.
If you have done these properly, for months, and the knee still runs your day, it is fair to look further.
Where do PRP and stem cells fit?
Both sit between the basics and surgery. They aim to calm the inflammation inside the joint and support the tissue that is still there.
PRP (platelet-rich plasma) is made from your own blood, spun down to concentrate the platelets and their growth factors. It is simple, repeatable and can ease early wear for a number of months.
Mesenchymal stem cells are living cells. Stem Cells Colombia uses only cells from the Wharton’s jelly of donated umbilical cords, not from your bone marrow or fat. They work mostly by sending signals to the tissue around them: calming inflammation and encouraging repair. PRP delivers a fixed bottle of growth factors. The cells keep sending messages for a while.
Is one better than the other? Research comparing them is growing; the right choice depends on your knee, your goals and your imaging, and a specialist helps you decide.
Could you be a good candidate?
Regenerative treatment is worth a conversation if most of these sound like you:
- Your pain and stiffness have lasted months despite a real effort with the basics.
- Your imaging shows mild to moderate wear, not a collapsed joint.
- You would like to delay or avoid a replacement because of your age, your work or simple preference.
- You are in good general health. Every IV protocol starts with cancer markers, for your safety, and a specialist reviews your full history first.
Every body responds at its own pace. Improvement builds gradually and is usually expected at 4–6 months after treatment.
How does a specialist choose your path?
Every knee is different. A specialist looks at how much pain you still have after good non-surgical care and what your X-rays show about the joint space, alignment and stability.
With that review, your plan is designed for your knee, and you have the recommendation in writing before you spend anything. The review is free: it only takes the time to send an X-ray.
- If you haven’t done a serious round of exercise and physical therapy, start there.
- If you have, and your imaging shows mild to moderate wear, regenerative options are worth asking about.
- Send your X-ray or MRI on WhatsApp for a free evaluation, and get your plan and price in writing, with no commitment.
Several randomized trials have tested mesenchymal cells in knee osteoarthritis. A small phase I/II trial with umbilical cord cells in Chile found better pain and function scores at one year than with hyaluronic acid, with no severe side effects. A 2024 meta-analysis of randomized trials in arthritis found less pain with cell therapy and no rise in adverse events. Research is growing, and every body responds at its own pace, which is why your follow-up tracks your progress with you.
- Umbilical Cord-Derived Mesenchymal Stromal Cells (MSCs) for Knee Osteoarthritis: Repeated MSC Dosing Is Superior to a Single MSC Dose and to Hyaluronic Acid in a Controlled Randomized Phase I/II Trial · Stem Cells Translational Medicine, 2019
- Efficacy and safety of culture-expanded mesenchymal stromal cell therapy in the treatment of 4 types of inflammatory arthritis: A systematic review and meta-analysis of 36 randomized controlled trials · Seminars in Arthritis and Rheumatism, 2024
Questions
Do I have to have a knee replacement?
Not necessarily, and usually not right away. Guidelines recommend a structured non-surgical plan first. A specialist reviews your imaging with you, so your next step is designed for your knee.
Can stem cells regrow my cartilage?
The aim is to calm inflammation and support your body’s own repair. Studies report less pain and better function.
How long does the effect last?
Published reports describe benefits lasting from months to a few years. Every body responds at its own pace, and your follow-up at 4 weeks and 6 months tracks how you respond.
How do I know if stem cells fit my knee?
Send your X-ray or MRI on WhatsApp. A specialist reviews your case for free, so your plan is designed for you, and you know the recommendation before you spend anything.
Can I still have a replacement later?
Yes. Stem cell treatment does not remove any part of your knee, so a replacement stays available if you ever need it.