Prolotherapy works by injecting a dextrose (sugar) solution into damaged ligaments, tendons, or joints to trigger your body’s natural healing response. It treats conditions like chronic low back pain, knee osteoarthritis, tendon injuries, shoulder pain, and joint instability. The controlled inflammation from the injection sends repair cells to the area, which helps grow new, stronger tissue over time. This article covers how prolotherapy works step by step, what conditions it treats, who is a good candidate, how many sessions you need, what the side effects are, and what the latest research says about its success rate.
What Is Prolotherapy and How Does It Work?
Prolotherapy is a non-surgical injection treatment that works by placing a small amount of dextrose (sugar water) solution into injured or weakened connective tissue. The solution acts as an irritant that triggers a mild, controlled inflammatory response at the injection site. This inflammation signals your body to send repair cells, growth factors, and fresh collagen to the damaged area.
According to a study published in the National Library of Medicine (PMC), prolotherapy has been used for chronic musculoskeletal pain for about 100 years, with modern injection protocols developed in the 1950s by surgeon George Hackett. The process causes your body to “kick into high gear,” as Cleveland Clinic explains, repairing tissue that was not healing on its own.
The injections typically contain a mix of dextrose, saline, and a local anesthetic like lidocaine. Patients in Tigard, Oregon who receive prolotherapy can expect the procedure to take about 30 minutes, and most people return to normal activities the same day.
Research from the National Library of Medicine shows that biopsies of tissue after dextrose prolotherapy injections revealed a 60% increase in average collagen fiber diameter. This means the treated tissue actually becomes thicker and stronger than it was before treatment. Animal studies have also confirmed improvements in ligament and tendon diameter and overall strength after prolotherapy.
What Does a Prolotherapy Injection Contain?
A prolotherapy injection contains a dextrose (sugar) solution, saline, and a local anesthetic such as lidocaine. Dextrose is the most common irritant used. According to Mass General Brigham, the dextrose solution stimulates growth factor production to treat injured connective tissues. Dextrose is extremely safe and is FDA-approved for intravenous use in treating low blood sugar. According to FDA records cited in the National Library of Medicine, no adverse events were reported for intravenous 25% dextrose solution in 60 years of use.
How Does Prolotherapy Trigger the Healing Process?
Prolotherapy triggers the healing process by creating a controlled inflammatory response at the injection site. The dextrose solution causes cells in the area to release growth factors and collagen. According to a 2021 study in the journal Anesthesia and Pain Medicine, hyperosmolar dextrose triggers an inflammatory response, increases platelet-derived growth factor expression, and signals the body to begin tendon repair. This is different from cortisone, which suppresses inflammation. Prolotherapy actually starts a new healing cycle instead of just masking pain.
Many residents across Tigard, Beaverton, and Lake Oswego dealing with joint pain have found this approach helpful because it addresses the root cause of the problem rather than covering up symptoms.
What Conditions Does Prolotherapy Treat?
Prolotherapy treats a wide range of musculoskeletal conditions, including chronic low back pain, knee osteoarthritis, tendon injuries, ligament sprains, shoulder pain, hip pain, and joint instability. It is also used for conditions like plantar fasciitis, tennis elbow, sacroiliac joint pain, TMJ dysfunction, and Achilles tendinopathy.
According to Cleveland Clinic, prolotherapy is used to help people with musculoskeletal conditions affecting bones, muscles, tendons, ligaments, and soft tissues. A systematic review published in Clinical Medicine Insights: Arthritis and Musculoskeletal Disorders examined 33 studies and found positive results for tendinopathies, osteoarthritis, and chronic low back pain. The Centers for Disease Control and Prevention reports that about 51.6 million U.S. adults experience chronic pain, and 17.1 million experience high-impact chronic pain that limits daily activities. Prolotherapy offers a non-surgical option for many of these people.
At Active Pain Relief in Tigard, Oregon, Dr. Christopher Jones uses ultrasound-guided prolotherapy to treat patients with joint pain, sports injuries, and long-term inflammation. The ultrasound guidance helps place the injection exactly where it needs to go for the best results.
Can Prolotherapy Help a Torn Meniscus?
Yes, prolotherapy can help a torn meniscus by strengthening the surrounding ligaments and tendons that support the knee joint. While prolotherapy does not directly repair a torn meniscus, it promotes healing of the connective tissue around the knee. This added support can reduce pain and improve knee stability. Research published in the National Library of Medicine has shown that prolotherapy can lead to improvements in ultrasonographic findings for patients with ligament and meniscal damage. Patients in the Tigard, Oregon area dealing with knee pain from a torn meniscus may benefit from a combination of prolotherapy and other pain treatments to support full recovery.
Does Prolotherapy Work for Chronic Low Back Pain?
Yes, prolotherapy works for chronic low back pain in many patients. A 2021 review published in the British Medical Bulletin concluded that prolotherapy is an effective treatment for chronic low back pain in patients where conservative therapies have failed. According to the National Library of Medicine, approximately 80% of Americans experience low back pain during their lifetime, and productivity losses from chronic low back pain approach $28 billion per year in the United States. A small case series found that patients who received 3 to 9 prolotherapy sessions for low back pain experienced 95% to 100% pain relief and returned to work.
Is Prolotherapy Effective for Knee Osteoarthritis?
Yes, prolotherapy is effective for knee osteoarthritis based on multiple clinical studies. A 2024 meta-analysis published in Health Science Reports analyzed studies from 2000 to 2023 and found that patients with knee osteoarthritis who received prolotherapy experienced significant decreases in pain and stiffness compared to other treatments. A systematic review published in Scientific Reports found that prolotherapy was superior to exercise alone for knee osteoarthritis, with clinically meaningful improvements on the WOMAC pain and function scales.
Knee osteoarthritis has a lifetime risk of 45% according to research published in the Journal of Clinical Orthopaedics and Trauma. For patients in Tigard and the surrounding Portland metro area, prolotherapy provides a non-surgical alternative to knee replacement surgery, which more than 720,000 Americans undergo each year according to Cigna Healthcare.
Who Is a Good Candidate for Prolotherapy?
A good candidate for prolotherapy is someone with chronic musculoskeletal pain from ligament, tendon, or joint damage who has not found lasting relief from physical therapy, medications, or rest. According to Mass General Brigham, you may be a candidate if you have sacroiliac pain, osteoarthritis of the knee, ankle, foot, shoulder, elbow, fingers or hip, or tendinopathy such as rotator cuff injuries, tennis elbow, or Achilles tendon problems.
Prolotherapy is especially popular among athletes and active people because the procedure does not require long breaks from physical activity. PRP therapy is another regenerative option that can sometimes be used alongside prolotherapy for more complex injuries.
People who should NOT get prolotherapy include those with bleeding disorders, those on blood thinners (reviewed case by case), immunocompromised patients, and people with active infections at the injection site.
What Is the Number One Mistake That Makes Bad Knees Worse?
The number one mistake that makes bad knees worse is ignoring pain and continuing high-impact activities without treatment. Many people push through knee pain thinking it will go away on its own. This leads to more damage to the cartilage, ligaments, and tendons over time. According to the U.S. Bone and Joint Initiative, 126.6 million Americans (one in two adults) are affected by a musculoskeletal condition, costing $213 billion in annual treatment, care, and lost wages. Early treatment, including options like prolotherapy and trigger point therapy, can help stop the cycle of damage before it gets worse.
How Many Times Can You Get Prolotherapy?
You can get prolotherapy 3 to 6 times for most conditions, with sessions spaced 4 to 6 weeks apart. According to Cleveland Clinic, people usually receive a total of 3 to 6 injection sessions. Mass General Brigham recommends monthly injections for at least 4 to 6 months to adequately treat injured tissue. Some patients may need more sessions depending on the severity of their condition.
Many patients begin to notice improvement after the first or second treatment, but the full benefits of prolotherapy typically appear after the third or fourth session. Each session takes about 30 minutes, and most people return to their daily activities right away.
What Are the Downsides of Prolotherapy?
The downsides of prolotherapy are temporary pain at the injection site, swelling, stiffness, and the fact that most insurance plans do not cover it. According to the National Library of Medicine, 10% to 20% of patients experience a post-injection pain flare within the first 72 hours. This flare is actually a sign that the body is responding properly to the treatment.
Other downsides include:
It requires multiple sessions over several months, so results are not instant. Research is still growing, and not all medical organizations recommend it yet. The American College of Rheumatology does not currently endorse prolotherapy, though the Arthritis Foundation states it appears safe to try. Some bruising and tenderness at the injection site is common for 1 to 2 days. Patients must avoid NSAIDs (like ibuprofen) for at least 7 to 10 days after each session because these drugs interfere with the healing inflammation.
The risk of serious side effects like infection or nerve damage is very low when the procedure is performed by a trained provider. At Active Pain Relief in Tigard, Oregon, Dr. Jones uses ultrasound guidance to place injections with precision, which reduces risk and improves outcomes.
What Is Better Than Prolotherapy?
“Better than prolotherapy” depends on the condition being treated and the severity of damage. For some patients, PRP and MFAT combination therapy may produce stronger results because it delivers concentrated growth factors directly to the injury site. PRP therapy uses your own blood platelets, while MFAT uses your own fat tissue, both of which contain powerful healing compounds.
According to a 2021 study in Anesthesia and Pain Medicine, both PRP therapy and prolotherapy have regenerative properties, but they work through different mechanisms. Prolotherapy triggers inflammation to start healing, while PRP delivers growth factors directly to the damaged area. For mild to moderate ligament and tendon injuries, prolotherapy alone is often enough. For more severe damage or advanced osteoarthritis, MFAT injections or PRP may be a better fit.
Physical therapy, exercise, and weight management are important parts of any treatment plan and should be combined with prolotherapy for the best results.
Will Insurance Cover Prolotherapy?
Most insurance plans will not cover prolotherapy because many carriers still consider it an experimental treatment. According to Aetna’s clinical policy bulletin, prolotherapy is not covered for most indications. However, some insurance companies are beginning to offer coverage in specific cases. For example, Unity Health in Wisconsin covers certain prolotherapy treatments, and in 2017, Arkansas passed a law granting state employees coverage for regenerative injection therapies.
For patients in the Tigard, Oregon area, it is worth checking with your insurance provider and asking about coverage. Many clinics accept health savings accounts (HSA) and flexible spending accounts (FSA) as payment options.
Prolotherapy vs. Cortisone Injections: How Do They Compare?
Prolotherapy and cortisone injections work in opposite ways. Prolotherapy promotes healing by triggering inflammation, while cortisone suppresses inflammation to temporarily relieve pain. According to a 2025 review in Frontiers in Endocrinology, research shows that corticosteroid injections are associated with a higher risk of cartilage breakdown over time, while prolotherapy aims to regenerate and strengthen damaged tissue.
| Factor | Prolotherapy | Cortisone Injections |
|---|---|---|
| How It Works | Triggers inflammation to promote tissue repair | Suppresses inflammation to mask pain |
| Pain Relief Duration | Long-term (months to years) | Short-term (weeks to months) |
| Tissue Effect | Strengthens and thickens connective tissue | May weaken tissue with repeated use |
| Number of Sessions | 3 to 6 sessions over several months | Typically limited to 3 to 4 per year |
| Success Rate | 80-90% report 50%+ pain improvement (NCBI) | Effective short-term, diminishes with repeated use |
| Insurance Coverage | Rarely covered | Usually covered |
| Recovery Time | Resume activities same day | Resume activities same day |
Sources: Cleveland Clinic, National Library of Medicine (PMC), Frontiers in Endocrinology, Mass General Brigham
For patients in the Portland metro area who have tried cortisone without lasting results, prolotherapy or hyaluronic acid and PRP injections may be better long-term options.
Can Prolotherapy Help Young Athletes with Osgood-Schlatter Disease?
Yes, prolotherapy can help young athletes with Osgood-Schlatter disease. A randomized controlled trial published in the journal Pediatrics found that at one year, 84% of knees treated with dextrose prolotherapy were pain-free, compared to only 46% of knees treated with lidocaine injections and 14% with standard care alone. The dextrose group also returned to full sports participation much faster.
Osgood-Schlatter disease affects up to 10% of adolescent athletes according to a systematic review published in Physical Therapy in Sport. It causes pain and swelling below the knee and is especially common in sports that involve jumping and running. Prolotherapy offers a treatment option that promotes actual tissue healing rather than just resting and waiting.
What Should You Expect After a Prolotherapy Session?
After a prolotherapy session, you should expect some swelling, stiffness, and mild discomfort at the injection site for 1 to 7 days. According to Mass General Brigham, this post-injection discomfort is actually a good sign that your body is responding to the treatment. Most people can return to normal activities by the next day.
Important things to remember after treatment: avoid NSAIDs like ibuprofen for at least 10 days because they interfere with the healing inflammation. Acetaminophen (Tylenol) is safe to take for post-injection pain. Avoid applying ice to the treated area, as cold can slow down the inflammatory healing response. Stay active with gentle movement, but avoid intense exercise for a few days.
Patients who combine prolotherapy with physical therapy exercises tend to see better outcomes, according to Mass General Brigham research. At Active Pain Relief in Tigard, Dr. Jones works with each patient to create a personalized recovery plan.
How Long Does It Take for Prolotherapy To Work?
Prolotherapy takes 6 to 8 weeks per session to show full results because the biological healing process requires time for new collagen and tissue to form. Most patients notice meaningful improvement after the third or fourth treatment session, which means the full treatment course typically takes 3 to 6 months.
According to Healthline, a 2021 meta-analysis of 10 studies involving 750 participants found that pain scores were significantly reduced at 6 months to 1 year after dextrose prolotherapy compared to saline injections. Some patients see early improvement after just 1 or 2 sessions, but lasting tissue repair takes time. This is different from cortisone, which can mask pain within days but does not promote actual healing.
For residents of Tigard and the surrounding communities in Washington County, the team at Active Pain Relief tracks progress at every visit and adjusts the treatment plan based on how your body responds.
Frequently Asked Questions
Is Prolotherapy Safe for Older Adults in Tigard, Oregon?
Yes, prolotherapy is safe for older adults in Tigard, Oregon when performed by a trained provider. Dextrose is FDA-approved for intravenous use and has an excellent safety record. The main consideration for older adults is making sure they are not on blood thinners or immunosuppressive medications that could affect the healing response. Dr. Jones at Active Pain Relief reviews each patient’s medical history before recommending treatment.
How Many Prolotherapy Sessions Do Most Patients in Tigard Need?
Most patients in Tigard need 3 to 6 prolotherapy sessions, spaced 4 to 6 weeks apart. According to Cleveland Clinic, the exact number depends on the condition being treated, the severity of the injury, and how quickly each person heals. Some conditions may require more sessions for full results.
Can Prolotherapy Be Combined with PRP Therapy?
Yes, prolotherapy can be combined with PRP therapy for enhanced healing. According to a 2021 study in Anesthesia and Pain Medicine, both treatments have regenerative properties but work through different biological pathways. Combining them can provide a stronger healing response for severe or stubborn injuries. Active Pain Relief in Tigard offers both treatments and can help determine the right combination for your needs.
Does Prolotherapy Help with Shoulder Pain and Rotator Cuff Injuries?
Yes, prolotherapy helps with shoulder pain and rotator cuff injuries by strengthening the tendons and ligaments that support the shoulder joint. According to the National Center for Biotechnology Information, tendinopathies (including rotator cuff injuries) showed the most consistently positive results in systematic reviews of prolotherapy. Patients in the Tigard and Beaverton area can schedule a consultation at Active Pain Relief to see if prolotherapy is right for their shoulder condition.
Is There Any Downtime After Prolotherapy?
No, there is very little downtime after prolotherapy. Most patients can go home right after the 30-minute procedure and return to daily activities the same day, according to Cleveland Clinic. Mild soreness and stiffness at the injection site may last 1 to 7 days. Patients should avoid heavy exercise for a few days and stop NSAIDs for at least 10 days after each session.
Can Prolotherapy Delay or Prevent the Need for Surgery?
Yes, prolotherapy can delay or prevent the need for surgery in some cases. According to Mass General Brigham, studies show that prolotherapy may allow some patients to push back the need for surgery or avoid it altogether. More than 1 million Americans have joint replacement surgery every year according to Cigna Healthcare, and many of these patients may benefit from trying non-surgical options like prolotherapy first.
What Areas of the Body Can Prolotherapy Treat?
Prolotherapy can treat many areas of the body, including the knees, hips, shoulders, elbows, wrists, ankles, feet, lower back, neck, and sacroiliac joints. According to Mass General Brigham, it is used for osteoarthritis, tendinopathies, ligament injuries, and chronic pain in nearly every major joint. Patients across Tigard, Lake Oswego, and the greater Portland area can access prolotherapy and other non-surgical treatments at Active Pain Relief.
Final Thoughts
Prolotherapy is a proven non-surgical injection treatment that helps your body repair damaged ligaments, tendons, and joints from the inside out. Research from the National Library of Medicine, Cleveland Clinic, and Mass General Brigham shows it can reduce chronic pain and improve function for conditions like low back pain, knee osteoarthritis, tendon injuries, and joint instability. With a strong safety profile and little to no downtime, it offers a real alternative to cortisone injections and surgery for many patients. PRP injections for knee pain are another option worth exploring if your condition requires a more advanced regenerative approach.
If you are in Tigard, Beaverton, Lake Oswego, or anywhere in the Portland metro area and dealing with chronic joint pain, sports injuries, or musculoskeletal problems, Active Pain Relief can help. Dr. Christopher Jones uses ultrasound-guided prolotherapy along with a full range of regenerative treatments to get you back to living without pain. Call (503) 336-3322 today to schedule your free 15-minute consultation and find out if prolotherapy is right for you.
