Prolotherapy has become a common topic among patients researching options for shoulder pain that has not responded to rest or physical therapy alone. Here is a clear look at how it works and what to expect. The same regenerative approach applied to the knee is described in prolotherapy as a way to avoid knee surgery.
What prolotherapy is
Prolotherapy involves injecting an irritant solution, often a dextrose solution, into the area around a damaged ligament or tendon. The goal is to trigger the body’s own repair response in that specific area.
Why it is used for shoulder pain
Shoulder pain frequently involves ligament or tendon laxity, particularly after an injury or with chronic overuse. Prolotherapy targets that specific tissue rather than simply masking the pain with medication. Shoulder pain that involves the rotator cuff is covered in rotator cuff and shoulder pain treatment.
What the treatment process looks like
Prolotherapy typically requires a series of injections spaced several weeks apart, rather than a single treatment. Some soreness at the injection site in the days following is common and generally temporary.
Understanding realistic expectations
Results vary by patient and by the severity of the underlying condition. Prolotherapy is not guaranteed to eliminate pain entirely, and is often used alongside other treatment such as physical therapy or drug-free options like Class IV laser therapy.
Is prolotherapy right for your shoulder pain
A thorough evaluation is the best way to determine whether prolotherapy fits your specific diagnosis, or whether a non-invasive option should be tried first.
Frequently asked questions
Which shoulder problems is prolotherapy least likely to help?
It is generally a poor fit for a full-thickness rotator cuff tear, a large labral tear, marked instability after a dislocation, or advanced shoulder arthritis, because those involve structural damage rather than simple ligament laxity. Frozen shoulder is also usually managed differently. An examination and imaging help separate a lax, irritated tendon from a tear that needs another approach.
Can prolotherapy be used after shoulder surgery that did not relieve the pain?
Sometimes, once healing is complete and the repair itself is intact. Pain that persists after shoulder surgery can come from scar tissue, altered mechanics, or nearby ligaments and tendons that were never the surgical target, and those are what prolotherapy aims at. A review of the operative report and current imaging comes first, since ongoing pain can also signal a failed repair.
Should shoulder physical therapy continue during a course of prolotherapy?
Usually yes, with the first few days after each injection kept gentle. Providers commonly ask patients to avoid heavy loading and aggressive stretching briefly, then resume strengthening, because the injection is meant to support tissue that still has to be trained to hold the shoulder stable. Stopping rehabilitation altogether tends to waste whatever the injections achieve.
How many prolotherapy sessions are tried before deciding it is not helping?
Most protocols use a series spaced a few weeks apart, and the decision point usually comes after three or four injections rather than after the first. If pain and shoulder function have not shifted at all by then, the sensible step is to revisit the diagnosis instead of continuing the series. The exact number varies with the condition being treated.
Shoulder pain that is worse at night?
An assessment separates the rotator cuff from the other common causes. More on rotator cuff injury.
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