“Blood” (PRP) Versus “Gel” (Hyaluronic Acid) Injections: How to Choose

The two most popular and common injections we offer patients for knee osteoarthritis are platelet-rich plasma (PRP), utilizing a patient’s own blood, and hyaluronic acid injections, commonly known as the gel, rooster comb, or viscosupplement injections.

Let’s compare the two and discuss pros and cons of each:

Both would be considered “natural“ injections with PRP obviously coming from your own blood and hyaluronic acid is a substance already in your joint, but depleted in joints that have osteoarthritis.

We often describe PRP as that big 100,000 mile service you do on your car, and hyaluronic injections are more like the oil change. Thus, PRP is more comprehensive.

PRP Injections

PROS

-most effective long-term injection we offer patients. Benefits typically seen for 6–24 months, and then PRP can then be safely repeated when necessary.

-very likely disease–modifying, meaning we are stopping or slowing the deterioration of cartilage in the knee. These give patients the greatest opportunity to either delay or avoid knee replacement.

-other than weight loss, probably the best long-term medical and financial nonsurgical investment in the health of your knee.

CONS

-not covered by insurance. See our blog regarding this here

-works gradually, with greatest benefit likely seen 4-6 months after the injections.

-anti-inflammatories of any type as well as blood thinners need to be stopped before and after the PRP procedure for a specific period of time.

Hyaluronic acid Injections

PROS

-authorized by most insurance plans, meaning the cost of these is fully covered, partially covered, or can be applied towards your deductible.

-excellent safety profile.

-the majority of patients see a benefit, often for 4 to 12 months.

-like PRP, injections are not particularly painful when given into the knee joint under ultrasound guidance and only require a few days of rest afterwards.

CONS

-may have an indirect benefit on the long-term health of the knee joint, but are not considered “disease–modifying” like PRP.

-benefits of pain and swelling reduction along with functional improvements do not last as long as PRP.

-although they work a bit more rapidly than PRP injections, typically it takes 6 to 8 weeks after the final injection to see the greatest benefit.

-most brands require a series of 3–4 total injections, given one per week.

Want to know more about PRP?

Learn about the key details of PRP here

How is PRP simple and not-so-simple? Read here

As always, let us know if we can be of assistance to you!

F. Clarke Holmes, M.D.

Do I Need a Knee Replacement?

Your 55 year-old knee is hurting and your brain immediately asks the question, “Do I need a knee replacement?”

An x-ray demonstrates moderate to severe osteoarthritis and thus, it’s time for a knee replacement, right? Not necessarily. It’s amazing how many patients have severe findings on their x-rays but minimal to mild pain and excellent function. Therefore, we always say, “Treat the patient, not the x-ray.”

Ok, now your pain has been running 5-7 out of 10 for weeks to months. Therefore, it’s time for a knee replacement, right? Well, pain is certainly a factor in this decision; however, we have many nonsurgical tools in the toolbox that will reduce or eliminate pain for extended periods of time.

Finally, you’ve been episodically limping now for several weeks. You suppose it’s time for a replacement, right? Persistent dysfunction is another reason to have a knee replacement, but function can often be significantly improved without the need for surgery.

To overcome the symptoms and dysfunction of knee arthritis, three factors can be addressed: the environment, the biomechanics and the structure. Only surgery can change the structure, yet significant improvements in the environment and biomechanics can often delay or eliminate the need for knee replacement.

How do we do this? The environment is best changed by injections such as platelet-rich plasma, an anti-inflammatory pattern of eating, supplements and occasionally medications.

The biomechanics can be improved through physical therapy, certain forms of exercise, bracing and changes in footwear.

So in summary, knee replacement can be the right option for many patients and produce successful outcomes in most patients, yet in 80-90% of the patients that walk (or limp) into our office, nonsurgical treatment will be quite effective.

As always, let us know if we can be of assistance to you!

F. Clarke Holmes, M.D.

Our 5 Best Pieces of Advice for You

Some specialty medical practices see you as a “knee,” an “ankle,” a “hip replacement,” or “that person with too many aches and pains.” At Impact, we see you as a whole person. We see you from head to toe and do our best to advise you on long-term lifestyle choices to keep you, your joints and soft tissues as healthy as possible.

Here are our current 5 best pieces of advice for you:

1) Use food to your advantage, not as a detriment: many think only of food as calories, but instead, let food be nutrition…something that can nourish your body. Choose wisely with lean meats, some plant-based protein sources, numerous fruits and vegetables and healthy fats. Really limit fried foods, fast foods, processed foods, foods high in sugars and artificial sweeteners. Don’t forget about healthy beverage choices: more water than anything, adding green tea or black coffee but keep soda and alcohol very much in moderation. Why is this important? Proper nutrition allows for healing and recovery. Poor food and beverage choices lead to more inflammation and pain.

2) Being at a healthy weight is very important for your joints and soft tissues: every 1 pound someone is overweight equals 4 pounds of extra force going through his/her lower body joints. On the positive side, you lose 10 pounds, you have 40 fewer pounds of force on your knees and other joints. Osteoarthritis of the hips and knees, plantar fasciitis and insertional Achilles tendonitis are the most common conditions we see in overweight individuals.

3) Make cost-effective medical decisions: did you know that seeing a physician employed by a hospital or one associated with a larger group practice is more expensive than seeing a physician in a smaller private practice? Why is this? It is because insurance companies and these larger organizations have negotiated higher reimbursement rates. Is this based on a higher quality care? Absolutely not! It’s just the behind-the-scenes business of medical economics, and not many patients are aware of this. An office visit at “Hospital/Large Practice X” may cost you $300. A similar and possibly even more comprehensive visit at our practice may cost you $200.

4) Stay moving, as “motion is lotion”: whether your knee or low back hurts, or you are just stiff quite often, staying mobile will help your musculoskeletal system. Don’t sit for too long. Don’t keep your hips, knees or spine in one position for too long. Set a goal for a certain number of steps each day, even if you are not classifying this as formal exercise. Walk while you talk on the phone. Choose an adjustable or standing desk if possible.

5) Find your sweet spot when it comes to exercise and activity: perhaps 2 miles of walking is too much for your arthritic knee, but 1.5 miles feels good, both during and after the walk. 25 minutes of the bike is great, 30 minutes creates pain. 2 sets of bench press with 30 pound dumbbells feels right, but 3 sets with 40 pounds causes shoulder pain. “Sweet spot” exercise is essential, especially for us middle-agers and older.

As always, let us know if we can be of assistance to you!

F. Clarke Holmes, M.D.

I Have Knee Arthritis. Can I Still Run?

The answer is, “yes,” “maybe” or “no.” Thus, it really depends on your situation, and fortunately, a period of relative rest may only need to be temporary.

Here’s the really good news: several recent studies have indicated that running a reasonable number of miles does not cause knee osteoarthritis and may actually have a protective effect.

If you are a runner and your knee is symptomatic, then our role is to help you reduce or eliminate your symptoms and safely return to running. We know that running has numerous health benefits, not only including protection of the joints, but also calorie burning, weight control, improvement of cardiovascular health and many mental health benefits.

As a patient though, it’s sometimes difficult to know when you need to stop running for a while, what’s a reasonable amount of running for your body and what treatment options may be available to not only reduce your symptoms, but also to protect your knees on a long-term basis.

That’s where we come in! We love treating runners and understand how you think. We typically focus on a nonsurgical and minimally-invasive approach to your care.

Physical therapy, bracing, footwear changes, custom orthotics, medications, supplements, and various injections can all play a role in the treatment of knee osteoarthritis. One of the best long-term treatment options, especially for those with mild to moderate osteoarthritis, would be platelet plasma (PRP) injections. These can have a very protective effect for the knee, and not only by reducing symptoms, but also by slowing or stopping the deterioration of the cartilage within the joint. Only a couple weeks of rest are typically required after these PRP injections.

Check out a few blogs on PRP as well as running as it relates to knee osteoarthritis:

https://www.impactsportsnashville.com/blog/2023/8/5/our-top-5-treatments-for-knee-oa

https://www.impactsportsnashville.com/blog/2023/5/12/five-keys-to-successful-outcomes-with-prp-injections

https://pubmed.ncbi.nlm.nih.gov/36875337/

As always, let us know if we can be of assistance to you!

F. Clarke Holmes, M.D.