Knee Replacement Alternatives: 10 Options (2026)
Not ready for knee surgery? 10 evidence-based alternatives from gel shots to PT. Compare effectiveness, cost, and Medicare coverage.
By Joint Pain Authority Team
Quick Answer: Surgery is not the only option for severe knee arthritis. Multiple evidence-based alternatives — from gel injections to physical therapy to bracing — can delay or even prevent knee replacement. Many of these options are covered by Medicare. The best results come from combining several approaches into a comprehensive treatment plan.
Every year, more than 790,000 Americans undergo total knee replacement surgery. It is one of the most common elective procedures in the country, and for many people, it delivers life-changing pain relief. But knee replacement is major surgery, and it is not the right answer for everyone — or at least not right now.
If your doctor has mentioned knee replacement, or if you have been told your knee is “bone on bone,” you may be wondering what else is available. The good news is that treatment options for knee arthritis have expanded significantly, and evidence shows that many patients can manage their pain effectively and delay or avoid surgery entirely.
This guide ranks 10 alternatives by the strength of their evidence, explains what each one costs, and tells you whether Medicare covers it.
Why Patients Seek Alternatives to Knee Replacement
There are many valid reasons to explore alternatives before committing to knee replacement surgery:
Recovery takes time. Total knee replacement requires 6 to 12 weeks of active recovery, with most patients needing 3 to 6 months before returning to normal activities. For people with demanding jobs, caregiving responsibilities, or limited support at home, that timeline can be a serious barrier.
Age-related concerns. Artificial knee joints last 15 to 25 years in most cases. If you are in your 50s or early 60s, a replacement now may mean a revision surgery later in life — a more complex procedure with a longer recovery. There is a genuine medical benefit to delaying replacement when possible.
Surgical risks. Like any major surgery, knee replacement carries risks including infection (1 to 2%), blood clots, nerve damage, and stiffness. These risks increase with age and certain health conditions like diabetes, obesity, or heart disease. The statistics on knee replacement show that while most outcomes are good, complications do occur.
Preference for conservative approaches. Many patients simply prefer to try less invasive options first. Research supports this approach. Guidelines from the American Academy of Orthopaedic Surgeons recommend exhausting conservative treatments before proceeding to surgery.
Both knees are affected. If both knees need attention, facing two separate surgeries and recovery periods is daunting. Conservative treatments can be applied to both knees simultaneously.
10 Alternatives to Knee Replacement, Ranked by Evidence
The following alternatives are ranked from strongest evidence to most emerging. Your best results will likely come from combining multiple approaches rather than relying on any single treatment.
1. Viscosupplementation (Gel Shots)
Viscosupplementation involves injecting hyaluronic acid (HA) — a naturally occurring substance in healthy joint fluid — directly into the knee. The injection restores lubrication, reduces friction, and decreases inflammation. Think of it as replenishing the cushioning fluid your knee has lost.
What the research shows: A large database analysis published in Osteoarthritis and Cartilage found that 75% of bone-on-bone patients who received viscosupplementation delayed knee replacement surgery by 7 or more years. That is a significant finding for anyone trying to avoid or postpone surgery.
Cost: $500 to $1,200 per treatment course, depending on the brand.
Medicare coverage: Yes. Medicare has covered viscosupplementation since 1997. Multiple FDA-approved brands are available, including single-injection and multi-injection options.
Key consideration: Injection accuracy matters. Research shows that imaging-guided injections (using fluoroscopy or ultrasound) are significantly more accurate than blind injections, which miss the joint space up to 30% of the time.
Learn more: How Long Do Gel Injections Last? | What to Expect | Brand Comparisons
2. Physical Therapy
Physical therapy is the most broadly recommended treatment for knee osteoarthritis at every stage, including advanced disease. A structured PT program strengthens the muscles around the knee — particularly the quadriceps and hip stabilizers — which reduces the load on the damaged joint.
What the research shows: The 2019 OARSI (Osteoarthritis Research Society International) guidelines gave their strongest recommendation to exercise and physical therapy, regardless of disease severity. A Cochrane review of 54 trials confirmed that exercise reduces pain and improves function in knee OA. A study in the New England Journal of Medicine found that physical therapy was as effective as surgery for certain types of knee problems.
Cost: $75 to $150 per session. A typical course involves 2 to 3 sessions per week for 6 to 8 weeks.
Medicare coverage: Yes. Medicare Part B covers physical therapy with a valid prescription. There is no longer a hard annual cap on PT spending, though claims above a certain threshold may be subject to review.
Key consideration: Consistency matters more than intensity. Patients who complete their full PT course and continue home exercises see the best long-term results. Chair exercises and aquatic therapy are excellent options for patients who find traditional exercises too painful.
3. Weight Management
Of all the things you can do for knee arthritis, losing weight may deliver the biggest payoff per effort. Every single pound of body weight you lose removes approximately 4 pounds of force from your knee joint with each step. Lose 10 pounds, and you take 48,000 pounds of cumulative force off each knee per mile walked.
What the research shows: A landmark study in JAMA found that combining diet and exercise produced a 51% reduction in pain scores among overweight adults with knee OA. That is a larger effect size than most individual medical treatments. Even modest weight loss of 5 to 10% of body weight produces meaningful improvements in pain, function, and quality of life.
Cost: Varies. Many weight management programs are low cost. The medical return on investment is substantial.
Medicare coverage: Medicare covers medical nutrition therapy for certain conditions and obesity counseling in primary care settings. Coverage for newer weight-loss medications varies by plan.
Key consideration: Weight management works best when combined with other treatments. It does not replace the need for joint-specific therapies, but it amplifies the effectiveness of everything else you do. An anti-inflammatory diet and Mediterranean-style eating can further reduce joint inflammation.
4. Unloader Knee Braces
Unloader braces are specially designed knee braces that mechanically shift your body weight away from the damaged side of the joint. If your arthritis primarily affects one compartment of the knee (medial or lateral), an unloader brace can provide immediate, noticeable pain relief during walking and standing.
What the research shows: Multiple studies show that unloader braces reduce pain and improve function in patients with unicompartmental knee OA. A systematic review in Arthritis Care & Research found moderate evidence supporting their use. Patients report being able to walk farther and do more activities while wearing the brace.
Cost: $400 to $1,200 for a custom-fitted brace. Off-the-shelf options start around $100 to $300.
Medicare coverage: Yes. Medicare covers unloader knee braces as durable medical equipment (DME) with a prescription and documented medical necessity. You will typically need a diagnosis of unicompartmental knee OA confirmed by X-ray.
Key consideration: Proper fitting is critical. A poorly fitted brace will be uncomfortable and ineffective. Work with an orthotist or a provider experienced in brace fitting. The brace provides relief while you are wearing it but does not change the underlying condition.
5. Cortisone Injections (Short-Term Relief)
Corticosteroid (cortisone) injections deliver a powerful anti-inflammatory medication directly into the knee joint. They can provide rapid pain relief within days, making them useful for acute flare-ups.
What the research shows: Cortisone injections have strong evidence for short-term pain relief lasting several weeks to a few months. However, they carry an important caveat. Recent research published in Radiology found that repeated cortisone injections may accelerate cartilage loss and worsen the very condition they are treating. A 2-year study showed that patients receiving cortisone every 3 months lost significantly more cartilage than those receiving saline injections.
Cost: $100 to $300 per injection.
Medicare coverage: Yes. Medicare covers cortisone injections for knee osteoarthritis. Most doctors limit injections to 3 to 4 per year per joint.
Key consideration: Because of the emerging evidence about cartilage effects, many orthopedists are now moving away from routine cortisone use for chronic knee arthritis. Cortisone still has a role for occasional flare-ups, but it should not be viewed as a long-term management strategy. Compare cortisone vs. gel injections to understand the differences.
Get the Latest on Knee Treatment Options
Evidence-based updates on knee arthritis treatments, Medicare coverage changes, and tips for staying active. Delivered weekly.
Join 10,000+ readers. No spam.
6. PRP Injections (Platelet-Rich Plasma)
PRP therapy uses concentrated platelets from your own blood to promote healing in the knee joint. A small blood sample is drawn, processed in a centrifuge to concentrate the platelets and growth factors, and then injected into the knee.
What the research shows: Several randomized controlled trials show that PRP can reduce pain and improve function in mild to moderate knee OA. A meta-analysis in the American Journal of Sports Medicine found PRP superior to hyaluronic acid for some outcome measures, though other meta-analyses show mixed results. The evidence is less clear for advanced, bone-on-bone arthritis.
Cost: $500 to $2,000 per injection, paid out of pocket.
Medicare coverage: No. Medicare does not cover PRP injections for osteoarthritis. PRP is considered experimental/investigational by most insurance plans.
Key consideration: Because PRP protocols vary widely between providers (the concentration, number of spins, and injection technique all differ), results are inconsistent. If you pursue PRP, choose a provider who uses a validated preparation system and imaging guidance. Compare PRP vs. hyaluronic acid for a detailed breakdown.
7. Radiofrequency Ablation (Genicular Nerve Ablation)
Radiofrequency ablation (RFA) uses heat generated by radio waves to disable the genicular nerves — the small nerves that transmit pain signals from the knee joint to the brain. The procedure does not repair or treat the arthritis itself. Instead, it blocks the pain signal.
What the research shows: A randomized controlled trial published in The Journal of Bone and Joint Surgery found that genicular nerve ablation provided significant pain relief and functional improvement in patients with chronic knee OA who had not responded to conservative treatments. Effects typically last 6 to 12 months, after which the nerves may regenerate and the procedure can be repeated.
Cost: $2,000 to $5,000. A diagnostic nerve block is usually performed first to confirm that you will respond to the ablation.
Medicare coverage: Increasingly covered. Medicare covers genicular nerve ablation in many areas when medical necessity criteria are met, including documented failure of conservative treatments. Coverage varies by Medicare Administrative Contractor (MAC), so check with your local provider.
Key consideration: RFA is a pain management tool, not a disease-modifying treatment. Your arthritis continues to progress even though you feel less pain. It is best used as part of a broader treatment plan that includes physical therapy and other interventions. Patients who cannot tolerate surgery for medical reasons may find RFA especially valuable.
8. Arthrosamid (Emerging)
Arthrosamid is a non-biodegradable polyacrylamide hydrogel that is injected into the knee joint. Unlike hyaluronic acid, which the body absorbs over months, Arthrosamid integrates into the synovial membrane and may provide long-lasting cushioning and pain relief from a single injection.
What the research shows: European clinical trials have shown promising results. A study published in Osteoarthritis and Cartilage reported that a single Arthrosamid injection provided statistically significant pain relief through 2 years of follow-up. The safety profile appears favorable in trials to date.
Cost: Approximately $1,000 to $2,500 where available.
Medicare coverage: Not applicable in the US. Arthrosamid is not yet FDA approved in the United States as of March 2026. It is approved and available in multiple European countries, Australia, and parts of Asia. An FDA approval pathway is being pursued.
Key consideration: If you are considering medical tourism for Arthrosamid or see clinics offering it in the US, exercise caution. Until FDA approval is granted, any US use would be off-label or through a clinical trial. Follow the latest updates on Arthrosamid for FDA timeline information.
9. Stem Cell Therapy
Stem cell therapy for knee arthritis involves injecting mesenchymal stem cells (MSCs) — typically derived from bone marrow or adipose (fat) tissue — into the knee joint. The theory is that these cells can stimulate cartilage repair and reduce inflammation.
What the research shows: Some early studies show improvements in pain and function, particularly for mild to moderate OA. However, there is currently no strong evidence that stem cells regenerate meaningful amounts of cartilage in advanced knee arthritis. The FDA has not approved any stem cell product for the treatment of osteoarthritis. A Cochrane review found the evidence insufficient to recommend stem cell therapy as a standard treatment.
Cost: $3,000 to $8,000 or more per treatment, paid entirely out of pocket.
Medicare coverage: No. Medicare does not cover stem cell therapy for joint pain. No major insurance carrier covers it as a standard benefit.
Key consideration: The stem cell therapy market is largely unregulated, and marketing claims often far exceed the evidence. Be wary of clinics that guarantee cartilage regrowth, charge very high fees, or pressure you into treatment. If you are interested, look for a provider participating in legitimate clinical trials registered with ClinicalTrials.gov. Compare stem cell vs. PRP and stem cell vs. HA injections for more context.
10. Comprehensive Conservative Program
The most effective alternative to knee replacement is not a single treatment but a combination of several. A comprehensive conservative program typically includes:
- Structured physical therapy (2 to 3 times per week for 6 to 8 weeks, then maintenance)
- Weight management targeting 5 to 10% body weight reduction if overweight
- Viscosupplementation or other appropriate injections on a schedule determined by your physician
- Unloader bracing during weight-bearing activities
- Activity modification — switching from high-impact to low-impact exercise (walking programs, aquatic therapy, cycling)
- Pain management support including heat and ice therapy, topical treatments, and appropriate oral medications
What the research shows: Research consistently demonstrates that no single treatment works as well alone as a combination of approaches. The patients who do best with conservative management are those who commit to a multi-modal plan and stick with it over time.
Cost: Varies depending on the specific combination. Most components are individually affordable.
Medicare coverage: Most components of a comprehensive program are covered by Medicare, making this an accessible approach for the 65+ population.
Key consideration: A comprehensive program requires commitment and consistency. It works best when coordinated by a physician who understands all the available options and can tailor the plan to your specific situation.
Knee Replacement Alternatives for Seniors (65+)
If you are 65 or older and on Medicare, you have specific considerations that make alternatives worth exploring:
Medicare covers most conservative treatments. Viscosupplementation, physical therapy, cortisone injections, unloader braces, and oral medications are all covered benefits. You do not need to pay out of pocket for the most evidence-based alternatives.
Surgical risk increases with age. While knee replacement is performed safely in patients well into their 70s and 80s, complication rates do increase with age, particularly for patients with heart disease, diabetes, lung conditions, or other health issues. Conservative options carry far lower risks.
Recovery demands are higher for older adults. A 6- to 12-week recovery requires significant support. You may need help at home, transportation to follow-up appointments, and time away from social activities and exercise that keep you healthy. Staying active through conservative treatment avoids this disruption.
Implant longevity is less of a concern. One advantage of being older is that a knee replacement, if eventually needed, is more likely to last the rest of your life without requiring revision surgery. This means you can take time to try alternatives without the same urgency a 50-year-old might face.
Talk to your doctor about the 3 Medicare requirements for covered treatments to make sure your initial evaluation includes the right documentation for insurance coverage.
When Knee Replacement IS the Right Choice
Being balanced about alternatives means acknowledging that knee replacement is an excellent operation for the right patient at the right time. Surgery may be the best path forward if:
- Pain significantly limits your daily activities despite 3 to 6 months of comprehensive conservative treatment
- You cannot sleep because of knee pain
- You can no longer do the things that matter most to you — gardening, golf, walking with family
- Your quality of life has declined substantially
- You have genuinely tried imaging-guided injections, completed physical therapy, used appropriate bracing, and managed your weight
The decision is personal. No X-ray finding requires surgery. It comes down to how your knee affects your life and whether you have truly exhausted the options above. A thorough evaluation should include standing X-rays, a physical exam, and a conversation about all your options — not just surgery. Read more in our guide on when knee replacement is necessary.
Frequently Asked Questions
What is the best alternative to knee replacement?
There is no single “best” alternative because the right approach depends on your specific situation — the severity of your arthritis, your weight, your activity level, and your overall health. That said, the strongest evidence supports a combination of viscosupplementation (gel injections), physical therapy, and weight management. Together, these three treatments address lubrication, muscle support, and mechanical load, which covers the primary drivers of knee arthritis pain.
Can you avoid knee replacement if you are bone on bone?
Yes, many patients do. Research shows that 75% of bone-on-bone patients who received viscosupplementation delayed surgery by 7 or more years. Some patients manage their pain effectively for decades without ever needing surgery. It depends on your pain levels, your response to treatment, and how consistently you follow a comprehensive management plan. Read our full guide on bone-on-bone knee pain for details.
What is the newest alternative to knee replacement?
As of 2026, Arthrosamid (a non-biodegradable polyacrylamide hydrogel injection) is the most notable emerging treatment. It is approved in Europe and other markets but not yet FDA approved in the US. Genicular nerve radiofrequency ablation has also gained significant traction in recent years as a covered option for patients who have not responded to other conservative treatments. Ongoing research into biologic therapies, gene therapy, and next-generation hydrogels continues to expand the pipeline.
How long can you delay knee replacement?
There is no set maximum. Some patients delay knee replacement for 5 to 10 years or more using conservative treatments. The research on viscosupplementation specifically shows delays averaging 3.6 years, with many patients exceeding 7 years. The key factors that determine how long you can delay include your body weight, muscle strength, activity modifications, and how well you respond to treatments like gel injections and physical therapy.
Does Medicare cover alternatives to knee replacement?
Yes, Medicare covers the majority of evidence-based alternatives. This includes viscosupplementation (gel injections, covered since 1997), physical therapy, cortisone injections, unloader knee braces (as DME), oral medications, and increasingly, genicular nerve ablation. The notable exceptions are PRP injections and stem cell therapy, which Medicare considers experimental. Visit our Medicare coverage guide for specific details on each treatment.
What can be done for a knee that is bone on bone?
More than most people realize. A bone-on-bone X-ray is not a surgery sentence. Your treatment options include viscosupplementation (gel injections) to restore joint lubrication, physical therapy to strengthen supporting muscles, weight loss to reduce joint forces, unloader braces to shift weight off the damaged compartment, cortisone for acute flare-ups, and activity modifications to reduce stress on the joint. Our complete bone-on-bone treatment guide walks through every option in detail.
Get Your Knee Replacement Alternatives Guide
Evidence-based information about managing knee arthritis without surgery. Weekly updates on treatments, Medicare coverage, and staying active with knee pain.
Join 10,000+ readers. No spam.
References
- Maradit Kremers H, et al. Prevalence of total hip and knee replacement in the United States. Journal of Bone and Joint Surgery. 2015;97(17):1386-1397.
- Altman RD, et al. Analysis of a large US claims database to determine if TKR is delayed by viscosupplementation. Osteoarthritis and Cartilage. 2015.
- Bannuru RR, et al. OARSI guidelines for the non-surgical management of knee osteoarthritis. Osteoarthritis and Cartilage. 2019.
- Fransen M, et al. Exercise for osteoarthritis of the knee: a Cochrane systematic review. British Journal of Sports Medicine. 2015;49(24):1554-1557.
- Messier SP, et al. Effects of intensive diet and exercise on knee joint loads, inflammation, and clinical outcomes among overweight and obese adults with knee osteoarthritis. JAMA. 2013;310(12):1263-1273.
- McAlindon TE, et al. Effect of intra-articular triamcinolone vs saline on knee cartilage volume and pain in patients with knee osteoarthritis: a randomized clinical trial. JAMA. 2017;317(19):1967-1975.
- Conaghan PG, et al. Long-term safety and efficacy of single-injection Arthrosamid for knee osteoarthritis. Osteoarthritis and Cartilage. 2024.
- Pas HI, et al. Efficacy of stem cell therapy for knee osteoarthritis: a systematic review and meta-analysis. Osteoarthritis and Cartilage. 2017.
- Davis T, et al. Genicular nerve radiofrequency ablation for painful knee osteoarthritis: a randomized controlled trial. Journal of Bone and Joint Surgery. 2018.
- Katz JN, et al. Surgery versus physical therapy for a meniscal tear and osteoarthritis. New England Journal of Medicine. 2013;368(18):1675-1684.
Topics
Enjoyed this article?
Get more insights like this delivered to your inbox weekly.
Join 10,000+ readers. No spam.