Chandler Biologic Index
What to try before biologic care that begins with blood or marrow
Which care belongs on your list for a sore joint? Start with the cause, the amount of soreness, and the tasks you’ve stopped doing.
No single choice fits everyone with joint soreness. We’ll keep the important differences plain and close to your daily needs.
What to try before a procedure
A few calmer days may settle a flare, while long rest can make stiffness worse. Try easy motion and stop before any sharp pain begins.
Cold may help after a busy day when the joint looks puffy. Warmth can make your first movements feel easier in the morning.
Physical therapy may build strength around the joint and help it move well. It’s also worth asking about a cane, brace, or supportive shoes.
Choose one daily task that the soreness has made hard, such as sleeping or taking stairs. That choice gives your doctor a clear and useful aim.
Your own doctor can also review medicine, past care, and any old X-ray. You’ll know which simple choices remain worth trying before you consider a procedure.
What to ask about biologic therapies
PRP is short for platelet-rich plasma; it starts with a blood draw from your arm. The blood is spun so platelets, tiny pieces that form a clot after a cut, gather in less liquid.
A clinician puts the prepared liquid into the joint, hoping it will ease symptoms. Research results don’t agree, so you can’t count on relief.
Bone marrow aspirate concentrate, called BMAC, is soft marrow taken from the pelvis and spun. The soft tissue within bone is called marrow.
BMAC requires numbing and a draw from the pelvis, which can leave tenderness there. Studies haven’t shown that BMAC works better than PRP for easing soreness.
Ask about the full cost, the care needed afterward, and when you may resume usual tasks. Please also ask which care is offered if soreness remains.
During a Chandler consultation, clinic staff check your joint before QC Kinetix medical providers discuss orthobiologics, the broad name for non-surgical care using blood from the arm or marrow from the pelvis.
Sources
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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.. Arthroscopy, 2024. DOI: 10.1016/j.arthro.2024.01.037.
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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.. Osteoarthritis and Cartilage, 2025. DOI: 10.1016/j.joca.2024.08.014.
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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).. Knee Surgery, Sports Traumatology, Arthroscopy, 2024. DOI: 10.1002/ksa.12077.
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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. FDA (Center for Biologics Evaluation and Research), 2020.
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The 2015 Cochrane review of 27 trials (1,767 participants) found intra-articular corticosteroid better than sham for knee OA pain (SMD -0.40, 95% CI -0.58 to -0.22; NNTB 8), but the benefit decayed with time: moderate at 1-2 weeks, small at 13 weeks, and no evidence of any effect at 26 weeks. All outcomes were graded LOW quality.
Jüni P, et al. — Intra-articular corticosteroid for knee osteoarthritis.. Cochrane Database Syst Rev, 2015. DOI: 10.1002/14651858.CD005328.pub3.
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A 2022 BMJ systematic review and meta-analysis of 169 trials (21,163 participants) found viscosupplementation produced only a small pain reduction versus placebo (SMD -0.08, 95% CI -0.15 to -0.02; about -2.0 mm on a 100 mm VAS), below the minimal clinically important difference, and trial sequential analysis indicated conclusive evidence of clinical equivalence with placebo since 2009.
Pereira TV, et al. — Viscosupplementation for knee osteoarthritis: systematic review and meta-analysis.. BMJ, 2022. DOI: 10.1136/bmj-2022-069722.
What to bring to a medical visit
Your notes can show the clinic team when soreness starts and which motions hurt. Please bring old reports and the list of medicines you take.
Ask why the joint is sore, which care fits, and what you’ll need to do afterward. Keep the answers tied to your daily tasks.
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