Which Knee Injection Is Best At Age 75: HA Steroid Or PRP?
At age 75, Platelet-Rich Plasma (PRP) injections are often the best choice for knee osteoarthritis. PRP provides long-lasting symptom relief and improved mobility compared to steroids or hyaluronic acid (HA). Steroids may offer quick results, but they may cause systemic side effects, while HA is relatively safe but generally less effective than PRP.
At Total Orthopedics and Sports Medicine, we review your medical history, conduct a detailed physical exam, and order imaging tests to recommend the most suitable type of injection. Our support doesn’t end with administering the shot. We closely monitor your progress, schedule follow-up visits, and use imaging when needed to track results. Call 855-321-6784 now to book your consultation.
What Factors Should You Consider When Choosing Between HA, Steroid, Or PRP?
When deciding between hyaluronic acid, steroid, or PRP injections for knee cartilage, you should consider your goals for pain relief, the severity of knee arthritis, and potential side effects. Factors like age, overall health, activity level, imaging results, and prior treatment response are also important to guide the most effective injection.
Here is how these factors may affect your choice of knee injection:
Goals for Pain Relief
If your goal is quick relief, steroids may be the right choice since they work quickly but usually last only a few weeks or months. For longer-lasting improvement, PRP and hyaluronic acid injections for knee osteoarthritis are the most suitable. They provide relief for 4 to 12 months or sometimes longer.
Severity of Arthritis
PRP and hyaluronic acid work best in mild to moderate knee osteoarthritis. However, severely damaged cartilage, such as in advanced cases, may limit their effectiveness. In these situations, doctors usually prefer steroids to provide short-term relief by controlling inflammation.
Age and Overall Health
Older patients or those with conditions like diabetes may face higher risks from frequent steroid use. PRP and hyaluronic acid are often safer long-term options, but effectiveness still depends on your overall health and healing ability.
Activity Level
Active patients benefit most from PRP because it helps maintain mobility and function over time. Likewise, those with moderate or lower activity levels may find hyaluronic acid helpful for smoother movement. In contrast, steroids are used during sudden flare-ups and do not provide long-term support based on your activity level.
Prior Therapeutic Response
Your response to previous treatments also matters when deciding between knee osteoarthritis injection choices. For instance, if steroid shots provided only short-term relief, your doctor may recommend PRP for long-term benefits. If hyaluronic acid improved mobility and comfort, another series might be effective. Reviewing treatment history prevents repeating options that failed and supports better outcomes.
How Do Imaging Tests Guide the Choice of Knee Injection?
Imaging tests, such as ultrasound, X-rays, and MRIs, guide the choice of knee injection by revealing cartilage thickness, joint space narrowing, fluid buildup, meniscus tears, and inflammation. These details show the severity and type of knee joint changes, allowing doctors to select the injection based on your condition.
For example, if imaging shows significant fluid buildup or swelling, doctors may recommend a corticosteroid injection to quickly reduce inflammation. If scans reveal reduced volume of synovial fluid, intra-articular hyaluronic acid injections can help restore cushioning and promote better mobility. Similarly, when cartilage thinning or early degeneration is visible, platelet-rich plasma treatment may be chosen to stimulate articular cartilage repair and support long-lasting functional improvement.
Can Joint Injections Delay The Need For Knee Replacement?
Yes, joint injections can delay knee replacement in many patients. They relieve pain, reduce swelling, and improve movement, which preserves joint function over the long term. The duration of delay usually depends on multiple factors, like the patient’s age, severity of arthritis, overall health, and lifestyle.
In general, both corticosteroid and hyaluronic acid injections can postpone knee arthroscopic surgery or replacement by 8.4 months. However, they do not slow or reverse the natural knee osteoarthritis progression. Therefore, doctors usually suggest them as a temporary option. According to Science Direct, if you’re already eligible to undergo surgery, your doctor will not recommend joint injections simply to delay the procedure.
How Long Does It Take To Get Pain Relief After a Knee Injection?
Pain relief after a knee injection usually takes between one and six weeks. Some patients feel better within a few days, while others need more time, depending on the injection type, arthritis severity, and overall patient health. You may also experience a minor flare-up of pain and swelling before full relief is achieved.
Here is the specific timeline of pain relief for each type of knee injection:
| Type of Injection | Timeline for Pain Relief |
|---|---|
| Corticosteroid injections | Around a week |
| Hyaluronic acid (HA) injections | Up to 3 weeks |
| Autologous platelet-rich plasma (PRP) injections | 2 to 6 weeks |
If you’re experiencing knee pain that hasn’t improved with rest or other conservative treatments for osteoarthritis, contact our team. We will carefully assess your knee injury and recommend the most appropriate joint injection to reduce your pain and help you move comfortably.
Can Knee Injections Be Combined With Other Arthritis Treatments?
Yes, knee injections can be combined with targeted exercises, weight control, bracing, and medications like NSAIDs. Together, these approaches help reduce pain, stabilize the joint, improve mobility, and strengthen supporting muscles. The combinations also make it easier to follow knee osteoarthritis rehabilitation, help protect the joint, and may delay the need for surgical treatment.
Knee injections may also be paired with emerging therapies, such as ultrasound or electrical stimulation, for secondary knee osteoarthritis. Ultrasound therapy improves local blood flow, reduces stiffness, and promotes tissue healing around the knee joint. On the other hand, electrical stimulation activates surrounding muscles, helping maintain strength, stability, and mobility while reducing pain signals. In some cases, doctors may also recommend supplements such as glucosamine and chondroitin. According to the Arthritis Foundation, the combination of glucosamine and chondroitin can effectively reduce pain, swelling, and stiffness in knee osteoarthritis.
Which Knee Injection Has The Least Side Effects?
PRP injections usually have the fewest side effects because they use your own blood cells, reducing allergy risk. Hyaluronic acid injections are also safe, but in rare cases, they may trigger a pseudoseptic flare. This reaction causes temporary pain and swelling that looks like an infection but is not actually infectious. Steroid injections, while effective for short-term relief, carry the highest risk of serious adverse events when repeated.
Therefore, according to Versus Arthritis, doctors limit steroid injections to three shots per year to reduce side effects when treating knee osteoarthritis. On the other hand, for hyaluronic acid and PRP injections, there are no strict limits. Orthopedists usually set the schedule based on the knee osteoarthritis patients’ treatment goals, severity of the condition, and the body’s response. Still, there is always a minor chance of side effects such as swelling, bruising, or infection. These risks can be reduced by following sterile techniques, maintaining appropriate intervals between injections, and ensuring the procedure is performed by an experienced specialist.
Total Orthopedics and Sports Medicine Can Help You Decide Which Knee Injection is Best For You — Book an Appointment!
In advanced stages of knee osteoarthritis, older adults often experience cartilage loss, chronic inflammation, and reduced joint space. These changes create stiffness, swelling, and persistent pain that interfere with mobility. As function declines, patients may struggle with even simple activities like walking, standing, and managing daily tasks independently.
At Total Orthopedics and Sports Medicine, we address advanced knee osteoarthritis with a comprehensive, conservative approach. For many older patients who may not be ideal candidates for knee surgery, we use targeted injections to relieve pain and improve function. We also design tailored rehabilitation programs with low-impact exercises to protect the joint while maintaining strength. Contact us now or visit our clinic at 16 E 29th St, Bayonne, NJ, to start your treatment of knee osteoarthritis.
FAQs
Are Steroid Knee Shots Safe if I Have Diabetes?
Yes, steroid knee shots can be safe for patients with diabetes, but they may temporarily increase blood sugar. Therefore, doctors usually monitor glucose levels closely after an intra-articular corticosteroid injection, which helps avoid complications. If you have osteoarthritis of the knee and diabetes, make sure to discuss risks and benefits before treatment for safety.
How Often Can Seniors Get Steroid Shots?
Seniors with symptomatic knee osteoarthritis should not get steroid injections more than three times a year. Frequent use can damage articular cartilage and increase systemic risks like high glucose levels or blood pressure. Orthopedists decide a safe interval based on arthritis severity, prior pain relief, overall health, and other ongoing knee osteoarthritis treatments.
How Soon Can I Return to Work After a PRP Injection?
You can return to routine tasks within one to two days after an intra-articular PRP injection. However, strenuous activity may require more rest, preferably for up to a week. It is required because platelet-derived growth factors take time to support cartilage repair. Following this guidance ensures safe healing, reduced joint pain, and significant pain relief.
Can Injections Help Me Avoid Opioids for Knee Pain?
Yes, injections can reduce the need for opioids in many patients. Steroid, hyaluronic acid, and PRP injections all work to decrease pain and inflammation. This allows patients to rely less on strong painkillers. Avoiding opioids also lowers the risk of dependence and side effects, such as constipation, drowsiness, nausea, and severe addiction.
Can I Exercise After Knee Injections at Age 75?
Yes, you can exercise after knee injections, but timing matters. Doctors recommend avoiding heavy activity for the first 24 to 48 hours. However, light movement, such as walking or stretching, is often encouraged to keep the joint flexible. Activities like swimming or cycling are also helpful in strengthening muscles and improving mobility.
Are Repeated Hyaluronic Acid Injections Harmful in Older Adults?
No, repeated hyaluronic acid injections are generally not harmful in older adults. They are considered safe and are often used multiple times to manage arthritis symptoms. However, some patients with knee osteoarthritis may experience temporary swelling or discomfort after the injection. With regular monitoring, doctors ensure injections remain effective and safe for ongoing arthritis care.
Should I Skip Injections if My Doctor Thinks They Make Bones Brittle?
No, you should not skip intra-articular injections because your doctor thinks they make bones brittle. Steroid shots, if overused, can weaken cartilage and surrounding tissues, but they do not affect bones. It is important to discuss these risks directly with your specialist and review safer options like HA or PRP.
What Is the PRP Injection Knee Success Rate?
The success rate for platelet-rich plasma injections is generally around 60%, with many hip and knee osteoarthritis patients reporting less pain and better function for 6 to 12 months. Clinical outcomes usually depend on arthritis severity, age, overall health, and the PRP technique used. Patients with mild and moderate osteoarthritis often show the best improvement.
Which Knee Injection is Administered Into Bone Marrow Stem Cells?
Bone marrow stem cell injections for knee arthritis are typically given as bone marrow aspirate concentrate (BMAC). In this procedure, stem cells are first collected from the patient’s own bone marrow, usually from the pelvis. It is then injected into the knee joint to help reduce inflammation and support cartilage repair.
