# What do people ask about blood- and marrow-based joint care? *Biologic Therapy Glendale | Questions People Ask* > Biologic therapy Glendale questions answered plainly: procedures using blood or marrow, gel shots, home care, cost, recovery, and nearby routes. Morning soreness can make a simple question feel urgent. These answers cover home care, warning signs, costs, and common procedures. Your answer still depends on the joint and its amount of wear. Bring the useful questions when you're ready to speak with a clinician. ## Sources 1. A Bayesian network meta-analysis of 48 Level I-II randomized trials (9,338 knees) with a minimum 6-month follow-up ranked the four commonest intra-articular injections. HA and PRP both significantly improved pain versus placebo; HA, PRP and BMAC all significantly improved function versus placebo. SUCRA rankings were PRP 91.54, BMAC 76.46, HA 53.12, corticosteroid 15.18 and placebo 13.70 - corticosteroid ranked barely above placebo at six months and beyond. Jawanda H, et al. — [Platelet-Rich Plasma, Bone Marrow Aspirate Concentrate, and Hyaluronic Acid Injections Outperform Corticosteroids in Pain and Function Scores at a Minimum of 6 Months as Intra-Articular Injections for Knee Osteoarthritis: A Systematic Review and Network Meta-analysis.](https://pubmed.ncbi.nlm.nih.gov/38331363/). *Arthroscopy*, 2024. DOI: 10.1016/j.arthro.2024.01.037. 2. A network meta-analysis restricted to LARGE randomized trials (at least 100 patients per group; 57 RCTs, 22,795 participants, 18 intra-articular interventions) found treatment effects were consistently larger in the 35 high-risk-of-bias trials than in the 22 low/unclear-risk trials. In the main analysis excluding high-risk trials, triamcinolone had the highest probability of exceeding the minimal important difference at weeks 2 and 6; hyaluronic acid had no effect on pain (SMD -0.04, 95% CrI -0.19 to 0.11, 11 trials) but higher odds of dropouts due to adverse events (OR 2.01) and of serious adverse events (OR 1.86). The effects of 16 of the 18 interventions were smaller than the MID and most were consistent with placebo effects. Pereira TV, et al. — [Effectiveness and safety of intra-articular interventions for knee and hip osteoarthritis based on large randomized trials: A systematic review and network meta-analysis.](https://pubmed.ncbi.nlm.nih.gov/39265924/). *Osteoarthritis and Cartilage*, 2025. DOI: 10.1016/j.joca.2024.08.014. 3. A meta-analysis of 18 Level I trials (811 PRP vs 797 HA patients, mean follow-up 11.1 months) found mean WOMAC total improvement of 44.7% with PRP versus 12.6% with HA (P<.01). Six of 11 VAS-based studies and 3 of 6 IKDC-based studies favoured PRP significantly. In the subanalysis, leukocyte-POOR PRP was associated with significantly better subjective IKDC scores than leukocyte-rich PRP. Belk JW, et al. — [Platelet-Rich Plasma Versus Hyaluronic Acid for Knee Osteoarthritis: A Systematic Review and Meta-analysis of Randomized Controlled Trials.](https://pubmed.ncbi.nlm.nih.gov/32302218/). *American Journal of Sports Medicine*, 2021. DOI: 10.1177/0363546520909397. 4. A meta-analysis of 27 Level I studies (1,042 PRP, 226 BMAC, 1,128 HA patients) found significantly better post-injection WOMAC, VAS and subjective IKDC scores for BOTH PRP and BMAC compared with hyaluronic acid - and NO significant difference between PRP and BMAC on any outcome score. This is the clearest published statement that the two most-marketed orthobiologics perform the same as each other in the knee. Belk JW, et al. — [Patients With Knee Osteoarthritis Who Receive Platelet-Rich Plasma or Bone Marrow Aspirate Concentrate Injections Have Better Outcomes Than Patients Who Receive Hyaluronic Acid: Systematic Review and Meta-analysis.](https://pubmed.ncbi.nlm.nih.gov/36913992/). *Arthroscopy*, 2023. DOI: 10.1016/j.arthro.2023.03.001. 5. The BMJ meta-analysis of viscosupplementation pooled 169 trials (21,163 participants) and found clear evidence of small-study effects and publication bias. In the prespecified main analysis of 24 LARGE placebo-controlled trials (8,997 participants) hyaluronic acid reduced pain by SMD -0.08 (95% CI -0.15 to -0.02), equivalent to 2.0 mm on a 100 mm scale - far below the -0.37 minimal important difference - and trial sequential analysis showed there has been CONCLUSIVE evidence of clinical equivalence to placebo since 2009. Fifteen large trials showed a significantly higher risk of serious adverse events (RR 1.49). Pereira TV, et al. — [Viscosupplementation for knee osteoarthritis: systematic review and meta-analysis.](https://pubmed.ncbi.nlm.nih.gov/36333100/). *BMJ*, 2022. DOI: 10.1136/bmj-2022-069722. 6. The 2012 Annals of Internal Medicine meta-analysis of 89 viscosupplementation trials (12,667 adults) is the classic demonstration of publication bias in this field: the pooled effect across 71 trials was -0.37, but five UNPUBLISHED trials showed an effect size of -0.03, and 18 large trials with blinded outcome assessment showed a clinically irrelevant -0.11. Fourteen trials showed an increased risk of serious adverse events (RR 1.41). Rutjes AW, et al. — [Viscosupplementation for osteoarthritis of the knee: a systematic review and meta-analysis.](https://pubmed.ncbi.nlm.nih.gov/22868835/). *Annals of Internal Medicine*, 2012. DOI: 10.7326/0003-4819-157-3-201208070-00473. 7. A meta-analysis of the PLACEBO arms of 73 double-blind trials (5,895 patients) quantified what a saline knee injection alone achieves: statistically and clinically significant improvement in pain, function and quality of life at 1, 3 and 6 months, with responder rates exceeding 50% at all three time points, peaking around 4-8 months and declining by 12 months. Placebo response was stronger in trials with more female participants and in more recently published trials. Previtali D, et al. — [Placebo response to intra-articular injections in knee osteoarthritis: magnitude, evolution over time, and influencing factors. A systematic review and meta-analysis with meta-regression.](https://pubmed.ncbi.nlm.nih.gov/41031623/). *EFORT Open Reviews*, 2025. DOI: 10.1530/EOR-2025-0022. 8. 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. 9. The ESSKA-ORBIT European consensus on blood-derived orthobiologics graded 28 question-statement sets; only 9 of 28 had high-level scientific support. Three statements reached grade A: that there is enough preclinical and clinical evidence to support PRP use in knee OA; that clinical evidence shows effectiveness in MILD TO MODERATE knee OA (KL grade 3 or lower); and that PRP provides a longer effect than the short-term effect of corticosteroid with a safer profile. The panel regarded PRP as a valid and possible first-line injectable option for KL grades 1-3. Laver L, et al. — [The use of injectable orthobiologics for knee osteoarthritis: A European ESSKA-ORBIT consensus. Part 1-Blood-derived products (platelet-rich plasma).](https://pubmed.ncbi.nlm.nih.gov/38436492/). *Knee Surgery, Sports Traumatology, Arthroscopy*, 2024. DOI: 10.1002/ksa.12077. ## Are orthobiologics, meaning blood- or marrow-based procedures, covered by insurance? PRP is platelet-rich plasma. It comes from blood taken from you and spun. A marrow procedure draws marrow from the pelvis and spins it. Patients usually pay for either one, so ask your health plan about the exact procedure. ## Is a hyaluronic acid injection, often called a gel shot, better than cortisone? Cortisone may ease soreness sooner, while gel can take longer. Human studies don't give one answer for every knee, so ask when relief might start and how long it may last. ## What can I do at home for joint soreness? Easy movement, regular exercise, heat, or cold may help. If weight adds strain, gradual weight loss can also make daily movement easier without asking the joint to carry as much. ## When should I get the joint looked at? Arrange a routine visit when soreness limits sleep, walking, work, or chores. Get prompt care for fever with a very hot joint, a misshapen joint, or no ability to bear weight. ## How soon can I walk after PRP made from my spun blood? Walking advice depends on the joint and how the procedure was done. Follow your own care directions, and call if redness, heat, fever, or soreness keeps rising instead of easing. ## Where can I find orthobiologics near me in Glendale? Orthobiologics here means procedures using your blood or marrow. The nearby choices are Peoria and Banner Estrella, and neither is inside Glendale, so compare both routes with your normal drive. ## How much do biologic injections cost in Arizona? Prices differ by whether the procedure uses blood or marrow and by the visits included. A reliable Glendale figure isn't available here, so ask for a dated written total before comparing covered care. ## What if the soreness doesn't settle? If soreness keeps limiting your day, QC Kinetix offers a visit with medical providers, the clinic staff who examine joints and discuss care before you make a treatment choice together. They provide regenerative treatments, meaning procedures that start with blood or marrow collected for your care. These biologic therapies aim to ease soreness and improve quality of life, although results differ. Your first consultation has no charge, and the clinician begins with your joint history. PRP stands for platelet-rich plasma and comes from blood drawn from you, then spun. Platelets are small blood parts that help clotting and start repair signals. Concentrated PRP keeps more of those platelets, but the name alone doesn't prove more relief. Joint preservation means trying non-surgical care before joint replacement, including knee or hip surgery alternatives when they fit. Book a free consultation: --- Plain help for a joint that stays sore. Biologic therapy Glendale residents can understand: blood or marrow is collected and prepared for care, with plain guidance on soreness and daily movement. Plain help with joint soreness, home care, warning signs, and questions to bring to an exam. This site is operated by the owners of QC Kinetix clinics across the Phoenix area, including the Peoria and Banner Estrella locations described here; the business benefits when a reader books a consultation. Copyright 2026 Glendale Biologic Status. General education about orthopedic treatment evidence, not medical advice for an individual joint.