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Prolotherapy Injections

Mass General Brigham sports medicine specialists use prolotherapy injections to treat tendon and joint conditions. 

What is prolotherapy? 

Prolotherapy is also known as proliferation therapy or regenerative injection therapy. It is a nonsurgical technique that uses injections of concentrated dextrose solution which stimulates growth factor production to treat injured connective tissues. Studies have shown that this procedure helps stimulate the body’s natural healing mechanisms by placing an injection into weakened and painful tissue which causes a mild inflammatory response that “tricks” the body to go into repair mode.

The injections are typically a preparation of an “irritant” solution containing dextrose, saline, and a commonly used anesthetic such as lidocaine. Prolotherapy is often a second-line treatment if initial treatments have been ineffective. It requires monthly injections for at least 4-6 months to adequately treat injured tissue and is normally accompanied by physical therapy to maximize therapy.

Prolotherapy is used for long term connective tissue health and may be used in some patients to prolong the need for surgery. Prolotherapy is often used in athletes or active individuals who do not want any down time because the procedure does not require long beaks in activity.

Studies have shown that prolotherapy may allow some patients may push back the need for surgery or avoid surgery on injured tissues altogether. Athletes and active patients may choose prolotherapy because it normally doesn’t require long breaks in activity.

Who may benefit?

You may be a candidate for prolotherapy if you have one of these conditions:

  • Chronic back pain
  • Sacroiliac pain. The sacroiliac joint is where the sacrum and the iliac bones meet. The sacrum is located at the base of your spine and sits in the middle of the iliac bones. The iliac bones are the large bones that make up your pelvis.
  • Osteoarthritis of the knee, ankle, foot, shoulder, elbow, fingers or hip
  • TendinopathyRotator cuff, lateral and medial epicondylosis (tennis or golfer’s elbow), patellar (Jumper’s knee), Achilles, IT band
  • Plantar fasciosis
  • Osgood-Schlatter disease
  • Chronic groin pain in athletes
  • Temporomandibular joint (TMJ) pain 
  • Hypermobility 

Contraindications

  • Have an active infection such as cellulitis, local abscess, or septic arthritis
  • Patients with bleeding disorders or patients on blood thinners. These patients are reviewed on an individual basis 
  • Are unable to understand or comply with rehabilitation instructions following the procedure 

Relative contraindications include:

  • Pregnant patients during the first trimester
  • Immunocompromised patients. These include cancer patients who are actively receiving treatment, organ transplant recipients who are taking medications to suppress their immune system, people with HIV and people who take high-dose corticosteroids like prednisone or other medications to suppress their immune response.

What are the risks of prolotherapy?

Prolotherapy performed by an experienced physician is considered to be relatively safe. All medical procedures are associated with some level of risk. For example, patients may have side effects that occur with any needle injection. These include mild bleeding and temporary discomfort or pain flare lasting up to 7 days. With any needle injection there is risk of infection but is significantly reduced by using sterile technique. 

Serious side effects and complications are rare, but include:

  • Allergic reaction
  • Bleeding
  • Nerve damage
  • Infection
  • Pneumothorax

What to expect

Most patients have an outpatient procedure done in a clinic. Before your procedure, tell your doctor if you have:

  • Allergies 
  • A bleeding disorder or are taking blood-thinning or anti-platelet medications 
  • A current infection being treated with antibiotics
  • A history of getting lightheaded or fainting during procedures

Depending on your medical history, you may be asked to adjust or stop taking some of your medications prior to the procedure. Discontinue NSAIDs (aspirin, ibuprofen, naproxen, celecoxib, etc.) at least 7 days before your injection. Talk with your physician if you are taking any steroids or had a recent steroid injection. If you take blood thinners, including aspirin, you will need to discuss potentially stopping this medication with your physician. Please discuss the safety of stopping any medication with your prescribing physician prior to doing so.

During prolotherapy, a doctor uses a needle to inject a solution into the patient’s damaged tissue. The injection is intended to trigger a mild inflammatory response. The goal is for this inflammation is to encourage the body’s natural healing response to reduce pain. 

The doctor marks the area of maximal tenderness for injection and sterilizes the region. In some cases, they may apply a numbing spray to reduce pain at the injection site. Your doctor also may use sterile ultrasound to visualize the affected area. Once they identify the area, they inject the solution into and around the damaged tissue. 

Prolotherapy injections are typically composed of an “irritant” solution that contains dextrose (a simple sugar), saline, and a numbing medicine such as lidocaine. Patients receive monthly injections for 4 to 6 months, depending on the severity of the condition. They normally perform physical therapy exercises along with the injections, which has been shown to improve outcomes.

You may experience increased discomfort for 5-7 days after prolotherapy injections due to the healing inflammatory response. This may feel like a pain flare-up, but it is actually a good sign that your body is achieving a proper response to the injections. You may experience temporary and local bruising, swelling, and tenderness at the injection site.

  • Avoid using ice as this can delay the healing response.
  • In order to achieve the desired inflammatory response from prolotherapy you should avoid the use of NSAIDS for at least 10 days after treatment. Do not take aspirin 325 mg, Advil, Naproxen, Ibuprofen, Motrin, other arthritis type pain medicines or anti-inflammatory drugs. If you have been instructed to take one aspirin a day for your heart, continue to take it. Medications will be reviewed on an individual patient with your doctor.
  • For treatment of pain after the procedure, you can use over-the-counter acetaminophen (Tylenol) as an alternative. Do not exceed 3 grams of acetaminophen in a 24-hour period.
  • Avoid swimming, hot tub, Jacuzzi for 48 hours after the injection.
  • Some patients prefer to rest after treatment, but others return to work or activity immediately after treatment.

If you develop fever, chills, swelling, redness, or other signs of infection you should notify your doctor or go to the emergency department for further evaluation. 

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