To find a PRP doctor who follows published research protocols, ask the clinic to walk you through its protocol step by step and name the paper behind each step: the platelet dose, the preparation, who places the needle and under what imaging, how a second injection is decided, the rehab and how results are followed. Then hold the answers to the published standards: the AAPM&R guidance statement on PRP for knee arthritis, with five evidence-based recommendations and 11 consensus-based best practices, and the ESSKA-ORBIT consensus. Ours, Dynamic PRP+, is shaped by the dose research, step by step below. Aneesh Garg, DO, CAQ performs every PRP and stem cell injection himself, under live ultrasound. Where the research is unsettled, we say so.
You have read that PRP works and that it does not, and both can be true depending on what was in the syringe and where it went. Two published standards are worth checking any clinic against: the 2026 AAPM&R guidance statement and the 2024 ESSKA-ORBIT consensus. This page walks the six steps of our protocol and the paper behind each, so you can hold any clinic, ours included, to the same standard.
Six steps, and the research behind each
Step 1: the dose, and what the dose research shows
A 2025 systematic review in Arthroscopy sorted knee arthritis trials by reported dose: the 28 of 31 PRP arms with positive six-month results averaged about 5.5 billion platelets, against about 2.3 billion in the arms without a statistically significant benefit (3 of 31 arms). A 2024 review reported a potential dose-response relationship in knee arthritis with an optimal threshold above 10 billion platelets, and said a lower dose may suffice for other conditions. In tennis elbow, concentration alone explained 58.5% of the variation between trials. The counterweight: a 2026 meta-regression of 10 trials in partial-thickness rotator cuff tears found platelet concentration was not significantly associated with pain, with the authors noting heterogeneity limits certainty. Dynamic PRP+ starts from a protocol designed to concentrate platelets 12 to 20x baseline (over 10 billion), the system specification. No trial has tested 12 to 20x as such. More in how platelet dose separates PRP products.
Step 2: the preparation, multi-spin, with the open questions named
Dynamic PRP+ is multi-spin. Leukocytes are a real choice with mixed answers. A 2021 meta-analysis of 18 knee trials favored leukocyte-poor PRP on one score, a 2024 double-blind trial of 132 patients found no difference, and a 2017 tendon meta-analysis reported larger effects with leukocyte-rich preparations, though its reported effect sizes are implausibly large and it should be read with caution. Activation is unsettled too: a 2025 review called pre-activation and red cell contamination detrimental, while a 2026 meta-regression linked calcium chloride activation to better six-month knee scores and called its findings hypothesis-generating. That is why one PRP differs from another.
Step 3: the delivery, by the physician who trained for it, under live ultrasound
Aneesh Garg, DO, CAQ performs every PRP and stem cell injection himself, under live ultrasound. It is not delegated. The 2017 tendinopathy meta-analysis of 18 trials concluded there is good evidence for a single injection of leukocyte-rich PRP under ultrasound guidance and that preparation and injection technique appear to be of great clinical significance. Guidance is not enough on its own: a 2023 review of 33 ultrasound-guided trials found no clear advantage over comparison injections in tennis elbow, plantar fasciitis, and Achilles, rotator cuff and patellar tendons, at low or very low certainty, while carpal tunnel results favored PRP. Placement puts the dose where it was planned; it does not rescue the wrong dose or the wrong diagnosis. See how we deliver it on PRP therapy in Boulder.
Steps 4 to 6: the second dose, the loading, the follow-up
A second injection is decided by how you respond to the first, not booked up front, and how a clinic decides it is worth asking before you start. Knee trials found three injections better than one at six months in early arthritis (the advantage was gone by 24 months in a second trial); the review of 33 tendon trials reports that 20 used a single injection but does not report whether one was enough. Loading returns on a plan, though the evidence is thin: a 2020 review of 84 post-PRP tendon studies found 54% added strengthening, starting within 2 to 3 weeks, and no studies directly comparing protocols. Follow-up closes the loop: patients’ self-reported results are followed in practice, and separately we run IRB-approved retrospective studies via Rocky Vista University. Reports appear in the DART Lab as they are accepted for publication.
Who is a candidate, and who is not
The protocol starts with the exam, and the exam decides whether PRP fits at all.
- A tendon problem, such as tennis elbow or jumper’s knee, that has not settled with a fair trial of rehab
- Early to moderate knee arthritis in an active adult who wants to delay or avoid surgery
- Not when the exam points elsewhere: pain referred from the spine, or a diagnosis that is not yet clear
- Not when the exam points to surgery: when surgery is the right answer, we coordinate
Before you book, ask
- What is the platelet specification of the system your protocol uses, and how far above baseline is it designed to concentrate?
- Who places the needle, and is it guided by live ultrasound?
- How is a second injection decided, and how are my results followed afterward?
Why the protocol is a time question
Every skipped step costs weeks: a syringe short of the dose, a needle placed near the problem instead of in it, a return to running before the tissue is ready. Following the research step by step is how we try to give you back the ski day, the trail and the race on the calendar, sooner.
Frequently asked questions
How can I find a PRP doctor who follows published research protocols?
Ask for the protocol step by step and the research behind each step, then compare it with the published standards: the 2026 AAPM&R guidance statement on PRP for knee arthritis and the 2024 ESSKA-ORBIT consensus. A clinic that follows the research can name the platelet specification of the system its protocol uses, how the PRP is prepared, who places the needle and under what imaging, how a second injection is decided, what rehab follows and how results are tracked. It should also tell you where the evidence is thin. At Dynamic Athlete, Aneesh Garg, DO, CAQ performs every PRP and stem cell injection himself, under live ultrasound.
What platelet dose should a PRP injection have?
In knee arthritis, research points to billions: a 2025 systematic review found positive arms averaged about 5.5 billion platelets, against about 2.3 billion in arms without a statistically significant benefit (3 of 31 arms), and a 2024 review reported a potential threshold above 10 billion and said a lower dose may suffice for other conditions. Concentration tracked results in tennis elbow trials, while a 2026 meta-regression of 10 trials in partial-thickness rotator cuff tears found platelet concentration was not significantly associated with pain, the authors noting heterogeneity limits certainty. Dynamic PRP+ uses PRP from a protocol designed to concentrate platelets 12 to 20x baseline (over 10 billion), the system specification; no trial has tested 12 to 20x as such.
What kind of doctor performs PRP?
Ask who will actually place the needle, what their training is, and whether they use live ultrasound. At Dynamic Athlete, Aneesh Garg, DO, CAQ performs every PRP and stem cell injection himself, under live ultrasound; the injection is not delegated. He is double board-certified in sports medicine and internal medicine, completed his fellowship at the American Sports Medicine Institute, and is teaching faculty at the Regenerative Medicine Training Institute and Rocky Vista University. The AAPM&R guidance statement that sets out practice recommendations for PRP in knee arthritis was written by a technical expert panel of physiatrists, physicians in physical medicine and rehabilitation.
Does PRP need to be done under ultrasound?
Ultrasound lets the physician watch the needle reach the target tissue. A 2017 meta-analysis of 18 tendinopathy trials concluded there is good evidence for a single injection of leukocyte-rich PRP under ultrasound guidance and that preparation and injection technique appear to be of great clinical significance. Guidance does not make PRP work on its own: a 2023 review of 33 ultrasound-guided trials found no clear advantage over comparison injections in five tendon conditions, at low or very low certainty. Aneesh Garg, DO, CAQ performs every PRP and stem cell injection himself, under live ultrasound.
How many PRP injections will I need?
It depends on the tissue and on how you respond to the first. In early knee arthritis, a 162-patient trial found three injections did better than one at six months, and a 237-patient trial found multiple doses better at six and twelve months, with no difference between any groups by 24 months. In advanced arthritis, the 162-patient trial found extra injections did not help. Of 33 ultrasound-guided tendon trials, 20 used a single injection, though the review does not report whether one was enough. A 2025 editorial lists injection frequency as unclear. We decide a second treatment by how you respond to the first, not by booking a series.
Can PRP work on a 50 year old?
Age has been studied, and the answer is not settled. The 2021 RESTORE trial enrolled 288 adults aged 50 or older with mild to moderate knee arthritis and found three injections of leukocyte-poor PRP no better than saline placebo for pain or cartilage at 12 months. A 2026 meta-regression of 20 placebo-controlled knee trials found younger age associated with better short-term knee function, but said the independent effect of any single factor remains uncertain. The 2024 ESSKA-ORBIT consensus still gave its top grade to the statement that clinical evidence shows PRP is effective in mild to moderate knee arthritis. The exam and imaging decide whether PRP fits you.
Is PRP safe?
PRP is made from your own blood, but it is not free of side effects. A 2025 meta-analysis of 24 randomized knee trials found 246 complications among 1,318 PRP-treated patients (18.66%) against 131 among 1,433 comparison patients (9.14%); the odds were similar to hyaluronic acid and corticosteroids and higher than saline placebo. Only 1 patient reported severe pain; all other complications were mild or moderate and self-limiting. A 2023 review of ultrasound-guided tendon trials also found injection-site pain more common after PRP. We go through these with you before any injection.
How much should a PRP shot cost, and does insurance cover it?
We give a quote after a thorough evaluation. We price the plan for optimal outcomes, not line items off a menu. PRP is out of pocket: Medicare and Kaiser are accepted for consultations and office visits only. PRP is HSA/FSA eligible, and Cherry financing is available. The new patient appointment is 90 minutes, and a Dynamic PRP+ injection appointment is about 90 minutes, from the blood draw through the injection. The value we price for is time: fewer weeks lost to a protocol that skipped a step.
Ask us to show you every step, then take your season back
Book the 90-minute evaluation with Aneesh Garg, DO, CAQ in Boulder. He walks you through each step of the protocol, what it asks of you, and where it fits in getting you back to the thing you miss doing.
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1790 30th Street Suite 270 · Boulder, CO 80301 · 303-997-1733