Prolotherapy: A Natural Alternative to Joint Replacement

Exploring the Benefits and Potential of Regenerative Injection Therapy.

Introduction to Prolotherapy

Prolotherapy (short for “proliferation therapy”) refers to the injection of a small amount of an irritant—most commonly hypertonic dextrose—into painful or unstable areas such as injured ligaments, tendons, or joint spaces.

The basic principle is to deliberately trigger a mild, localized inflammatory response that recruits the body’s normal healing cascade, with the goal of promoting tissue repair and strengthening connective tissue over time.

Treatments are typically delivered in a series of sessions and paired with appropriate activity modification and rehabilitation, aiming to reduce pain and improve function by addressing underlying soft‑tissue laxity rather than only masking symptoms.

What is Prolotherapy for?

Osteoarthritis (OA) or degenerative joint diseases (DJD) is the most common form of arthritis characterized by the gradual breakdown of articular cartilage along with changes in the underlying bone and surrounding soft tissues. OA/DJD most commonly affects weight-bearing and frequently used joints such as the knees, hips, spine, and hands, and risk increases with age, prior injury, repetitive mechanical stress, obesity, and certain anatomic or genetic factors.

Symptoms are progressive and vary from mild discomfort to significant disability:

• Pain with activity
• Stiffness (often worse after rest)
• Reduced range of motion
• Swelling
• Functional limitations
• Joint-space narrowing
• Bone spurs (osteophytes)

Growing interest in regenerative medicine

Physicians often wait until something gets intolerable before doing anything, due to their education. For example, if someone has mild cataracts, instead of prescribing treatment, they tell the person to wait until they are almost blind to have surgery. Or, if there are arteries in the heart with mild blockages, the surgeon will say to wait until the arteries are 80% blocked to do a bypass or stents, instead of reversing it with lifestyle changes. The same is true with OA. It is better to rebuild the joints, rather than “waiting it out” until symptoms become severe enough to require joint replacement surgery.

Prolotherapy treatments are less invasive, have shorter recovery times, and preserve the native joint. Prolotherapy is part of a broader, stepwise plan that includes lifestyle changes, physical therapy, and pain management, with the goal of improving function and quality of life before end-stage degeneration develops.

How Prolotherapy Works

Mechanism: stimulating the body’s natural healing response.

When a person has pain in joints, tendons, or ligaments, they are told they have inflammation and are then prescribed anti-inflammatory medications. One large issue is that these medications slow healing and can cause scar tissue instead of natural collagen. Some use steroid injections, different types of cortisone, which cause breakdown of the cartilage and weakening of tissues in the joint.[i] Some use injections of numbing medications such as lidocaine, bupivacaine, or other nerve blocking agent. These also cause joint degeneration and shrinkage of cartilage.[ii]

Prolotherapy, on the other hand, is designed to stimulate natural healing. The solution is a hypertonic (concentrated) glucose solution that causes dehydration in the cells of the injured joint, increasing local blood flow and prompting the release of growth factors and other mediators involved in tissue repair. It encourages fibroblast activity and collagen production, supporting gradual remodeling and strengthening of connective tissue and improving joint stability over time. Rather than acting as a numbing agent, prolotherapy’s intent is to promote rebuilding and repair of tissues.

Prolotherapy Formulas:

• Hypertonic dextrose[iii] (sometimes with a local anesthetic) is by far the most common prolotherapy injection.
• P2G (phenol–glycerin–glucose)[iv] Local irritant that stimulates fibroblasts.
• Morrhuate sodium[v] is cod liver oil salts
• Platelet-rich plasma (PRP)[vi], which uses the patient’s own concentrated platelets to deliver growth factors
• Bone marrow aspirate concentrate (BMAC) or other cell-based preparations
• Ozone[vii] – one unusual injection is a gas that is pure oxygen as O2 + O3.[viii] Supplies both oxygen and an irritant (ozone is a pro-oxidant). If you can find it, since very few practitioners have the machines needed, this is probably the best option.

Each of these causes inflammation, instead of reducing it. The inflammation starts the healing process. Ozone also adds the benefits of oxygen to turn on the mitochondria to increase energy.

Procedure and safety considerations:

A prolotherapy visit typically begins with a focused history and examination to confirm the pain source (for example, a ligament/tendon attachment or an intra‑articular source), followed by a discussion of alternatives, expected course, and informed consent. The skin is cleaned using sterile technique, and a small needle is used to inject the selected solution into targeted points.

Depending on the joint and clinician preference, sometimes ultrasound guidance may be used to improve accuracy and avoid sensitive structures.

After the injection, patients commonly experience temporary soreness or a “flare” for a day or two, and are usually given guidance on activity modification and a rehabilitation plan.

The full treatment is a series of sessions spaced weeks apart rather than a single injection.

Key safety considerations include screening for bleeding risk (especially blood thinners), allergies to anesthetics or components, active infection, poorly controlled medical conditions, and (for dextrose solutions) diabetes management considerations. As with any injection, risks can include bruising, bleeding, infection, increased pain, and rare injury to nerves or blood vessels; patients are typically advised to seek prompt care for fever, worsening redness/swelling, drainage, progressive numbness/weakness, or severe unrelenting pain.

What to expect (timeline, number of sessions, and recovery): Most prolotherapy appointments are outpatient visits and typically take about 20–45 minutes, depending on how many areas are treated and whether imaging guidance is used. After marking tender points and cleaning the skin, the clinician usually delivers several small injections around the painful ligament/tendon attachments or into/around the joint; the exact number of needle passes varies by body region and clinical findings. Many treatment plans involve a series of sessions—commonly about 3–6 visits—spaced roughly 3–6 weeks apart, although some people need fewer (milder cases) and others may need additional sessions for long‑standing or multi‑joint problems.

It is common to feel increased soreness, stiffness, or a temporary “flare” for 24–72 hours (sometimes up to a week), followed by gradual improvement; because the goal is tissue remodeling rather than immediate numbing, benefits often build over weeks to months. Patients are usually advised to keep the area moving but avoid heavy loading for several days, follow a guided strengthening/physical therapy plan, and return for reassessment to adjust targets and spacing based on response.

Benefits for Osteoarthritis and Degenerative Joints

Reduction in pain and inflammation

Over time, as the joint heals, there is less pain and inflammation. This allows for more exercise and physical therapy, which improves circulation to the joint inciting more improvement.

Improved joint function and mobility

As the cartilage repairs, the swelling decreases allowing better mobility. It is important to do range-of-motion exercises prescribed by your PT to maintain function because the ligaments will heal stronger and unless you exercise, they will get stiffer.

Reverse degenerative changes:[ix]

Prolotherapy has the unique ability to stimulate repair mechanisms that don’t just stop inflammation, but actually repair the damage and increase cartilage in joints.

 

Comparing Prolotherapy to Other Treatments

Therapy	Benefits	Risks
Exercise, Weight loss, PT/strengthening	Improve mechanics, reduce load on the joint, build capacity,	Requires consistency; benefits can be gradual, does not rebuild cartilage.
Topicals and oral meds (e.g., NSAIDs, acetaminophen)	Symptom control Hours	GI/kidney/cardiovascular risks, prevents repair of joint tissues
Intra-articular corticosteroid injection	Reduce inflammation and pain, short-term relief	Causes tissue breakdown; lasts weeks to months
Hyaluronic acid injections	Improve lubrication and symptoms, works in days	Requires repeated injections. lasts months
PRP (platelet-rich plasma) injections	Causes inflammation to rebuild cartilage. One injection can help	Protocols vary; cost/coverage issues; evidence and guideline support vary, lasts months to years.
Prolotherapy (commonly hypertonic dextrose) injections	Stimulate healing; Improves connective tissue/joint stability over time, increases cartilage	Usually requires a series of visits; post-injection soreness common
Nerve procedures (e.g., radiofrequency ablation)	Reduce pain signaling	Does not address cartilage loss; numbness/neuritis risk; technique-dependent
Joint replacement surgery	Replace damaged joint surfaces; restore function in end-stage disease	Operative risks, recovery time, rehab commitment

 

Overall, most DJD treatment plans begin with lifestyle and rehabilitation strategies, then add medications or targeted procedures based on symptom pattern, severity, and goals. Injections such as corticosteroids, nerve blockers, or anti-inflammatories worsen the problem, while options like prolotherapy or PRP actually repair the joint. Hyaluronic acid is in the middle with some improvement, but injections are needed periodically for life. All treatments should be paired with strengthening and movement retraining.

How To Benefit from Prolotherapy

Just about anyone with osteoarthritis can benefit from prolotherapy, including people with DJD at any stage from just pain to bone-on-bone cartilage loss. Risks are minimal, and benefits include repair of joints.

It is important to note that prolotherapy injections should NOT include:

• Steroids (cortisone, or any of its derivatives)
• Nerve blockers (Lidocaine, or anything like it)
• Anti-inflammatory medications (NSAID)

These medications cause the catabolic breakdown of cartilage.

Also, to derive the greatest benefit from any therapy it is important for you to have an “anabolic metabolism.” The term “anabolic” refers to building up or repairing. Studies done with injections of PRP or stem cells found that if the injections are done when a person is “catabolic” (breaking down) they don’t work.[x] However, being anabolic allows the injections to grow the normal tissue in and around a joint. Becoming anabolic requires two things: an empty stomach to produce a hormone called GHRELIN, the hunger hormone, which produces growth hormone (HGH) that repairs tissues, and to be asleep by 10:00 PM so your body switches to anabolic mode.[xi]

The best way to get benefit is to fast two days before the injection and one day after for optimal anabolic rebuilding and repairing. This stimulates “autophagy” which takes out all the old, damaged tissue and replaces it with new, youthful cartilage.

Joint Repair Plan

Prolotherapy stimulates the body’s natural repair response and offers meaningful improvements in pain, stability, and day-to-day function when used as part of a comprehensive plan. When combined with core DJD strategies—such as strength training, mobility work, weight management, and activity modification—you can restore the youth of your joints.

SIMPLE PLAN:

• Weight loss – Find your ideal body weight.
• Exercise – strength training, especially the muscles around the affected joint.
• Prolotherapy injections – (Hypertonic Glucose, P2G, Morrhuate sodium, PRP, or Ozone) 4-6 treatments about 1 month apart. Fast 2 days before and 1 day after each injection.
• Fasting: No food after 6:00 PM
• Sleep by 10:00 PM nightly, get up at 6:00 AM

Supplements:

• MSM 500mg three times per day
• Glucosamine 500mg three times per day
• Vitamin C 500mg three times per day
• Chondroitin 500mg three times per day
• Collagen Peptides 10 grams daily (with high-protein meal in the morning)

Working on this plan will change your life in many other ways besides avoiding joint replacement surgery. You will have more energy. You will have less pain. Your hair and nails will get stronger. And, we will get world peace! (Just kidding about that last one). But, you will definitely have a longer “healthspan” or healthy amount of life.

Sources:

[i] J. Funct. Morphol. Kinesiol. 2021, 6(1), 15; https://doi.org/10.3390/jfmk6010015 ; Intra-Articular Injections in Knee Osteoarthritis: A Review of Literature, by Gianluca Testa, Serena Maria Chiara Giardina, Annalisa Culmone, Andrea Vescio, Matteo Turchetta, Salvatore Cannavò, Vito Pavone

[ii] J. Funct. Morphol. Kinesiol. 2021, 6(1), 15; https://doi.org/10.3390/jfmk6010015 ; Intra-Articular Injections in Knee Osteoarthritis: A Review of Literature, by Gianluca Testa, Serena Maria Chiara Giardina, Annalisa Culmone, Andrea Vescio, Matteo Turchetta, Salvatore Cannavò, Vito Pavone

[iii] J. Funct. Morphol. Kinesiol. 2021, 6(1), 15; https://doi.org/10.3390/jfmk6010015 ; Intra-Articular Injections in Knee Osteoarthritis: A Review of Literature, by Gianluca Testa, Serena Maria Chiara Giardina, Annalisa Culmone, Andrea Vescio, Matteo Turchetta, Salvatore Cannavò, Vito Pavone

[iv] J Exp Orthop. 2020 Dec 6;7:97. doi: 10.1186/s40634-020-00312-z

Prolotherapy agent P2G is associated with upregulation of fibroblast growth factor-2 genetic expression in vitro; Elisha Johnston 1, Chandrakanth Emani 2, Andrew Kochan 3, Kidane Ghebrehawariat 4, John Tyburski 5, Michael Johnston 6, David Rabago 7,

[v] J Altern Complement Med. 2014 May 1;20(5):383–391. doi: 10.1089/acm.2013.0225

Dextrose and Morrhuate Sodium Injections (Prolotherapy) for Knee Osteoarthritis: A Prospective Open-Label Trial; David Rabago 1,✉, Jeffrey J Patterson 1, Marlon Mundt 1, Aleksandra Zgierska 1, Luke Fortney 2, Jessica Grettie 1, Richard Kijowski 3

[vi] J. Funct. Morphol. Kinesiol. 2021, 6(1), 15; https://doi.org/10.3390/jfmk6010015; Intra-Articular Injections in Knee Osteoarthritis: A Review of Literature, by Gianluca Testa, Serena Maria Chiara Giardina, Annalisa Culmone, Andrea Vescio, Matteo Turchetta, Salvatore Cannavò, Vito Pavone

[vii] https://journalofprolotherapy.com/prolozone-regenerating-joints-and-eliminating-pain/

[viii] Int J Mol Sci. 2023 May 15;24(10):8788. doi: 10.3390/ijms24108788

Ozone Therapy versus Hyaluronic Acid Injections for Pain Relief in Patients with Knee Osteoarthritis: Preliminary Findings on Molecular and Clinical Outcomes from a Randomized Controlled Trial

Cristiano Sconza, et. al.

[ix] https://journalofprolotherapy.com/the-regeneration-of-articular-cartilage-with-prolotherapy/

[x] https://health.clevelandclinic.org/anabolism-vs-catabolism

[xi] Journal of Genetics and Genomics; Volume 52, Issue 11, November 2025, Pages 1325-1336

Journal of Genetics and Genomics; The circadian clock at the intersection of metabolism and aging – emerging roles of metabolites; Yue Dong, Sin Man Lam, Yan Li, Min-Dian Li,  Guanghou Shui