# What to ask when treatment prices differ *Price and Results — Biologic Therapy Phoenix options from blood or tissue* > Biologic therapy Phoenix questions about the price and possible results of options that use a patient's blood or tissue. Soreness may settle for a while, then return after a longer walk. A costly treatment can sound more certain when you're tired of that cycle. Price tells you what the clinic charges, not how you'll feel later. I'd ask what change is reasonable to hope for and what may not change. ## What to ask about the lower-cost choice Start by asking about care that asks less of your body and budget. Find out how it compares with movement, rest, or covered care. Even a cheaper option needs a clear result and review date. Don't keep paying when nobody has checked whether it helped. Name the daily change that matters to you before treatment begins. Sleeping longer or walking farther gives you something clear to compare later. ## What PRP questions to bring PRP means platelet-rich plasma; staff take your blood and spin it so more platelets remain in the amount used for care. Clinics don't all prepare the blood alike. Ask how the clinician will decide whether your joint has improved. The answer may include easier stairs, better sleep, or a longer walk. Ask when the clinic will check those daily tasks again. If nobody can explain the check, don't let the price stand in for an answer. ## When to slow the decision down Slow down when the sales talk sounds certain or payment feels rushed. Extra steps for drawing or spinning blood don't prove the care will help more. Ask, “What in my exam would make you advise against this care?” A clear no can be a useful answer. Take the price home and protect money needed for food, medicine, and other care. If the bill would strain those needs, waiting may be sensible. ## Sources 1. The 2025 Cochrane review of stem cell injections for knee osteoarthritis pooled 25 randomised trials (1,341 participants) and found that, compared with placebo injection, stem cell injection MAY slightly improve pain (1.2 points better on a 0-10 scale, 7 studies, 445 participants) and function (14.2 points better on a 0-100 scale, 7 studies, 432 participants) up to six months - both rated LOW-certainty evidence, downgraded for indirectness (cell source, preparation and dose varied across studies) and suspected publication bias, since up to three larger RCTs were conducted and withdrawn before reporting results. Radiographic progression was not assessed in any included study. Whittle SL, et al. — [Stem cell injections for osteoarthritis of the knee.](https://pubmed.ncbi.nlm.nih.gov/40169165/). *Cochrane Database of Systematic Reviews*, 2025. DOI: 10.1002/14651858.CD013342.pub2. 2. RESTORE, the largest and most rigorously blinded placebo-controlled PRP trial in knee OA (n=288, participant-, injector- and assessor-blinded), gave three weekly injections of a commercial leukocyte-poor PRP or saline. At 12 months the change in knee pain was -2.1 vs -1.8 points (difference -0.4; 95% CI -0.9 to 0.2; P=.17) and the change in medial tibial cartilage volume was -1.4% vs -1.2% (difference -0.2%; P=.81). Twenty-nine of 31 prespecified secondary outcomes showed no between-group difference. The authors concluded the findings do not support the use of PRP for knee OA. Bennell KL, et al. — [Effect of Intra-articular Platelet-Rich Plasma vs Placebo Injection on Pain and Medial Tibial Cartilage Volume in Patients With Knee Osteoarthritis: The RESTORE Randomized Clinical Trial.](https://pubmed.ncbi.nlm.nih.gov/34812863/). *JAMA*, 2021. DOI: 10.1001/jama.2021.19415. 3. The largest head-to-head trial of cell-based orthobiologics to date randomised 480 patients with KL II-IV knee OA across four arms: autologous bone marrow aspirate concentrate, autologous adipose stromal vascular fraction, allogeneic umbilical cord tissue-derived MSCs, and a corticosteroid injection control. At 12 months NONE of the three orthobiologic injections was superior to another or to the corticosteroid control on either co-primary endpoint (VAS pain, KOOS pain), and none of the four groups showed a significant change in MRI osteoarthritis score from baseline. No procedure-related serious adverse events were reported. Mautner K, et al. — [Cell-based versus corticosteroid injections for knee pain in osteoarthritis: a randomized phase 3 trial.](https://pubmed.ncbi.nlm.nih.gov/37919438/). *Nature Medicine*, 2023. DOI: 10.1038/s41591-023-02632-w. 4. A multicenter prospective crossover randomized trial randomised 40 patients with discogenic chronic low back pain to a saline trigger-point control, intradiscal PRP, or intradiscal bone marrow concentrate, with crossover permitted for non-responders. Both PRP and BMC produced statistically significant improvement in pain and function with no adverse events, hospitalisations or surgery at 12 months - but ALL placebo patients reported under 50% relief and crossed over, and the trial was small and open-label. Navani A, et al. — [The Safety and Effectiveness of Orthobiologic Injections for Discogenic Chronic Low Back Pain: A Multicenter Prospective, Crossover, Randomized Controlled Trial with 12 Months Follow-up.](https://pubmed.ncbi.nlm.nih.gov/38285032/). *Pain Physician*, 2024. 5. A meta-analysis of 24 RCTs (1,653 participants) with plantar fasciitis found PRP produced significantly better VAS pain than corticosteroid at 3 and 6 months but not at 1 month or 12 months, and better AOFAS function scores at 3, 6 and 12 months. Plantar fascia thickness did not differ significantly at any time point. Zuo A, et al. — [Platelet-Rich Plasma Versus Corticosteroids in the Treatment of Plantar Fasciitis: A Systematic Review and Meta-analysis.](https://pubmed.ncbi.nlm.nih.gov/39778212/). *American Journal of Physical Medicine & Rehabilitation*, 2025. DOI: 10.1097/PHM.0000000000002677. 6. A meta-analysis and metaregression of 14 RCTs (978 patients) of dextrose prolotherapy for knee OA found favourable effects on pain, global function and quality of life versus placebo injection and non-invasive control, and effects COMPARABLE to other invasive therapies at each follow-up duration - with the authors cautioning that heterogeneity and risk of bias across the included trials require the results to be interpreted cautiously. Chen YW, et al. — [Effectiveness, Compliance, and Safety of Dextrose Prolotherapy for Knee Osteoarthritis: A Meta-Analysis and Metaregression of Randomized Controlled Trials.](https://pubmed.ncbi.nlm.nih.gov/35257594/). *Clinical Rehabilitation*, 2022. DOI: 10.1177/02692155221086213. 7. FDA states verbatim of stem cell products, stromal vascular fraction (adipose-derived cells), umbilical cord blood, Wharton's jelly, amniotic fluid and exosome products: 'None of these products have been approved for the treatment of any orthopedic condition, such as osteoarthritis, tendonitis, disc disease, tennis elbow, back pain, hip pain, knee pain, neck pain, or shoulder pain.' The only FDA-approved stem cell products in the United States are blood-forming (hematopoietic progenitor) cells derived from umbilical cord blood, approved only for disorders of blood production, and there are currently NO FDA-approved exosome products. U.S. Food and Drug Administration — [Consumer Alert on Regenerative Medicine Products Including Stem Cells and Exosomes](https://www.fda.gov/vaccines-blood-biologics/consumers-biologics/consumer-alert-regenerative-medicine-products-including-stem-cells-and-exosomes). *FDA (Center for Biologics Evaluation and Research)*, 2020. ## What to ask at your visit Bring your health history, medicine list, and questions about the sore joint. Ask what the exam showed, how each option matches that finding, what it'll cost, and how long it'll take. Leaving without a same-day decision is fine. The visit isn't a promise about your result. Book a free consultation: --- Clear answers for aching joints. Plain answers about aching joints, office care made from blood or tissue, costs, and visits in Phoenix. Plain help with joint soreness, visit costs, and Phoenix clinic travel. This site is operated by the owners of the QC Kinetix Phoenix-area clinics, which may benefit when readers book a consultation. © 2026 Phoenix Biologic Ledger. General education only; it is not medical advice, a diagnosis, an insurance determination, or a treatment quote.