Everything You Need to Know About PRP Injections for Knee Pain

July 21, 2023Kolton Opdahl
Knee PainPlatelet Rich Plasma (PRP)

Knee pain is a common ailment affecting millions of people worldwide. Whether caused by aging, injury, or disease, it can be debilitating, affecting one’s quality of life. For decades, treatments for knee pain have been limited to anti-inflammatory drugs, physical therapy, and in severe cases, surgery. However, over the past decade, platelet-rich plasma (PRP) injection therapy has emerged as a promising alternative for knee pain relief. This comprehensive guide aims to provide readers with a detailed understanding of PRP injection therapy for knee pain, its benefits, and how to find the right specialist to perform the procedure.

What is PRP Injection Knee Therapy?

PRP injection therapy is a medical treatment that uses the patient’s blood to heal injured tissues in the knee. The procedure involves extracting a sample of the patient’s blood, processing it in a centrifuge to separate the platelets, and injecting the concentrated platelets into the affected area of the knee. The platelets contain growth factors that promote healing by stimulating the growth of new tissues, increasing blood flow to the affected area, and reducing inflammation. Unlike traditional treatments for knee pain, PRP injection therapy addresses the root cause of the problem by promoting the natural healing process of the body.

Knee Conditions Treated with PRP Injections

Osteoarthritis

Osteoarthritis is a degenerative joint disease that affects millions of people worldwide. It occurs when the cartilage that cushions the joints begins to break down, leading to pain, stiffness, and reduced mobility. PRP injections can help alleviate the symptoms of osteoarthritis by promoting the growth of new cartilage and reducing inflammation in the affected joint.

PRP for Meniscus Tears

The meniscus is a C-shaped piece of cartilage in the knee that provides cushioning and stability to the joint. Meniscus tears are a common knee injury, especially among athletes and older adults. PRP injections for meniscus tear have shown promising results in reducing pain and promoting healing. PRP injections can help heal meniscus tears by promoting the growth of new tissue and reducing inflammation in the affected area.

Patellar Tendinitis

Patellar tendinitis, also known as jumper’s knee, is a condition that affects the tendon that connects the kneecap to the shinbone. It is commonly seen in athletes who engage in jumping and other high-impact activities. PRP injections can help alleviate the symptoms of patellar tendinitis by promoting the growth of new tissue and reducing inflammation in the affected tendon.

Ligament Injuries

The knee is held together by several ligaments that provide stability to the joint. Ligament injuries, such as ACL tears, are common among athletes and can be debilitating. PRP injections can help heal ligament injuries by promoting the growth of new tissue and reducing inflammation in the affected area.

Bursitis

Bursitis is a condition that occurs when the small fluid-filled sacs (bursae) that cushion the joints become inflamed. It can cause pain and stiffness in the affected joint, and is commonly seen in the knee. PRP injections can help alleviate the symptoms of bursitis by reducing inflammation in the affected bursae and promoting healing.

PRP for Tendonitis

Tendonitis is a condition that occurs when the tendons that attach muscles to bones become inflamed. It can cause pain, swelling, and reduced mobility in the affected joint. PRP injections can help alleviate the symptoms of tendonitis by promoting the growth of new tissue and reducing inflammation in the affected tendon.

Cartilage Injuries

The knee joint is covered by a layer of cartilage that helps cushion and protect the bones. Cartilage injuries can occur due to trauma or wear and tear, leading to pain and reduced mobility.

The PRP Injection Procedure

The PRP injection procedure is a minimally invasive outpatient procedure that can be performed in a doctor’s office. The procedure typically involves the following steps:

Pre-injection Preparation and Evaluation

Before the procedure, the doctor will evaluate the patient’s medical history and perform a physical exam to determine the cause of the knee pain. The doctor may also perform imaging tests, such as an X-ray or MRI, to get a better understanding of the extent of the injury.

Blood Draw

The doctor will draw a sample of the patient’s blood, typically from the arm, and place it in a special tube.

Processing

The tube of blood is placed in a centrifuge, which spins the blood at high speeds to separate the platelets from the other components of the blood.

Injection

Once the platelets have been concentrated, the doctor will inject them into the affected area of the knee using a small needle. The injection may be guided by ultrasound to ensure that the platelets are injected into the correct location.

Post-Injection Care and Recovery

After the procedure, patients are typically advised to rest and avoid strenuous activities for a few days. Patients may also be given physical therapy exercises to perform at home to promote healing and improve range of motion.

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Advantages of PRP Injections for Knee Pain

PRP injection therapy for knee pain offers several advantages over traditional treatments. These advantages include:

  • Non-surgical: PRP injection therapy is a minimally invasive outpatient procedure that does not require surgery.
  • Reduced risk of infection: Because the procedure uses the patient’s blood, there is a reduced risk of infection compared to other treatments that require foreign substances to be introduced into the body.
  • Fast recovery time: Recovery time for PRP injection therapy is typically much faster than surgery, with most patients able
  • to return to their normal activities within a few days.
  • Long-lasting results: Unlike pain medications, which provide only temporary relief, PRP injections can provide long-lasting pain relief by promoting the body’s natural healing process.
  • Personalized treatment: PRP injection therapy can be customized to meet each patient’s unique needs. The concentration of platelets in the injection can be adjusted based on the severity of the injury and the patient’s response to the treatment.

Success Rates and Potential Risks

Research has shown that PRP injection therapy can be an effective treatment for knee pain. A study published in the Journal of Arthroscopic and Related Surgery found that PRP injections were more effective than hyaluronic acid injections in reducing pain and improving knee function in patients with osteoarthritis.

Another study published in the Journal of Orthopedic Research found that PRP injections for meniscus tear resulted in significant improvements in pain and function compared to a control group that received a saline injection.

However, like any medical treatment, PRP injection therapy does carry some risks. These risks include infection, bleeding, and nerve damage. Patients should discuss the potential risks and benefits of PRP injection therapy with their doctor before deciding if it is the right treatment for their knee pain.

Finding PRP Injections Near Me

To find a qualified and reputable PRP injection specialist, patients can take the following steps:

  • Research online: Patients can use online resources to find PRP injection clinics near them. They can read reviews from previous patients and check the clinic’s credentials.
  • Ask for referrals: Patients can ask their primary care physician or orthopedic specialist for a referral to a PRP injection specialist.
  • Check credentials: Patients should check the credentials of the PRP injection specialist they are considering. They should ensure that the specialist is licensed and board-certified.
  • Ask about experience: Patients should ask the PRP injection specialist about their experience performing the procedure and their success rates.
  • Get a second opinion: Patients should consider getting a second opinion from another PRP injection specialist before deciding on a treatment plan.

Learn More About PRP for Knee Pain!

The following are 4 unique studies about prp injections for knee conditions:

Patel S, Dhillon MS, Aggarwal S, Marwaha N, Jain A. Treatment with platelet-rich plasma is more effective than placebo for knee osteoarthritis: a prospective, double-blind, randomized trial. J Arthrosc Relat Surg. 2013;29(3):496-505. doi:10.1016/j.arthro.2012.11.006

Filardo G, Kon E, Di Martino A, et al. Platelet-rich plasma vs hyaluronic acid to treat knee degenerative pathology: study design and preliminary results of a randomized controlled trial. BMC Musculoskelet Disord. 2012;13:229. doi:10.1186/1471-2474-13-229

Kon E, Buda R, Filardo G, Di Martino A, Timoncini A, Cenacchi A, Fornasari PM, Giannini S, Marcacci M. Platelet-rich plasma: intra-articular knee injections produced favorable results on degenerative cartilage lesions. Knee Surg Sports Traumatol Arthrosc. 2010 Apr;18(4):472-9. doi: 10.1007/s00167-009-0940-8. Epub 2009 Oct 17. PMID: 19838676.

Sheth U, Simunovic N, Klein G, Fu F, Einhorn TA, Schemitsch E, Ayeni OR, Bhandari M. Efficacy of autologous platelet-rich plasma use for orthopaedic indications: a meta-analysis. J Bone Joint Surg Am. 2012 Feb 15;94(4):298-307. doi: 10.2106/JBJS.K.00154. PMID: 22241606.

These studies suggest that PRP injections can be an effective treatment option for knee conditions such as osteoarthritis, cartilage injuries, and degenerative knee pathology. However, it is important to note that the effectiveness of PRP injections may vary depending on the individual patient and the specific condition being treated.

Conclusion

PRP injection therapy is a treatment for knee pain that has shown promising results in reducing pain and promoting healing. It offers several advantages over traditional treatments, including faster recovery time, long-lasting pain relief, and personalized treatment. However, it is important for patients to discuss the potential risks and benefits of the procedure with their doctor and find a qualified and reputable PRP injection specialist. With the right treatment plan, patients can experience relief from knee pain and improve their quality of life.

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