# What do people ask about a sore joint? *Questions Answered | regenerative medicine phoenix* > Straight regenerative medicine phoenix answers about sore joints, home care, cartilage, cost, warning signs and local QC Kinetix care. Phoenix has offices in several parts of the city. That saves some driving, but you still need plain answers before booking. Here are the questions people ask most. These answers are general. Your own exam still matters. ## Sources 1. FDA states plainly that no stem cell, exosome, stromal vascular fraction, umbilical cord blood, Wharton's jelly or amniotic-fluid product has been approved for the treatment of ANY orthopedic condition - it names osteoarthritis, tendonitis, disc disease, tennis elbow, back pain, hip pain, knee pain, neck pain and shoulder pain individually. The only FDA-approved stem cell products in the United States are cord-blood-derived blood-forming stem cells for disorders of the hematopoietic system, and there are currently no FDA-approved exosome products. US Food and Drug Administration, Center for Biologics Evaluation and Research — [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*, 2020. 2. The RESTORE trial - a participant-, injector- and assessor-blinded RCT of 288 adults aged 50+ with symptomatic medial knee OA (Kellgren-Lawrence 2-3) - compared three weekly intra-articular PRP injections against saline placebo, with co-primary endpoints of 12-month knee pain and medial tibial cartilage volume on MRI. PRP did not beat placebo on either. It is the single best-designed test of the specific claim that PRP changes joint structure, and it was negative. 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. A four-arm, multicentre, single-blind phase 2/3 randomized trial of 480 knee OA patients (KL II-IV) compared autologous bone marrow aspirate concentrate, autologous adipose stromal vascular fraction and allogeneic umbilical-cord-tissue mesenchymal stromal cells against a corticosteroid injection control. At 12 months NONE of the three orthobiologic injections was superior to another, or to the corticosteroid control, and none of the four groups showed a significant change in MRI osteoarthritis score from baseline. No procedure-related serious adverse events occurred. 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 randomized trial in the New England Journal of Medicine compared physical therapy against intra-articular glucocorticoid injection for knee osteoarthritis and found physical therapy produced better WOMAC outcomes at one year. When a clinic offers an injection, the comparator that matters is not 'nothing' - it is a course of supervised exercise. Deyle GD, et al. — [Physical Therapy versus Glucocorticoid Injection for Osteoarthritis of the Knee.](https://pubmed.ncbi.nlm.nih.gov/32268027/). *The New England journal of medicine*, 2020. DOI: 10.1056/NEJMoa1905877. 5. The AAOS clinical practice guideline summary on SURGICAL management of knee osteoarthritis - the other end of the ladder, and the honest comparator for anyone told a biologic injection will let them avoid an operation. Srivastava AK, et al. — [American Academy of Orthopaedic Surgeons Clinical Practice Guideline Summary of Surgical Management of Osteoarthritis of the Knee.](https://pubmed.ncbi.nlm.nih.gov/37883429/). *The Journal of the American Academy of Orthopaedic Surgeons*, 2023. DOI: 10.5435/JAAOS-D-23-00338. 6. A cross-sectional study contacted 273 of 317 US centres offering direct-to-consumer stem-cell therapy, posing as a 57-year-old man with knee osteoarthritis. The mean advertised price of a unilateral same-day stem-cell knee injection was $5,156 (SD $2,446), and centres claimed a mean clinical efficacy of 82% (SD 9.6%) - a figure with no support in the published evidence. The gap between the quoted number and the trial data is the single most useful thing a patient can be told before a consultation. Piuzzi NS, et al. — [The Stem-Cell Market for the Treatment of Knee Osteoarthritis: A Patient Perspective.](https://pubmed.ncbi.nlm.nih.gov/28738432/). *The journal of knee surgery*, 2018. DOI: 10.1055/s-0037-1604443. 7. Medicare's National Coverage Determination covers autologous platelet-rich plasma ONLY for chronic non-healing diabetic, pressure or venous WOUNDS, and only under Coverage with Evidence Development inside an approved clinical research study. There is no Medicare coverage pathway for PRP as a treatment for osteoarthritis or any other joint indication, which is why these injections are quoted as cash prices. Centers for Medicare & Medicaid Services — [Autologous Platelet-rich Plasma (Coverage with Evidence Development)](https://www.cms.gov/medicare/coverage/evidence/plasma). *CMS.gov*, 2012. 8. MACI (autologous cultured chondrocytes on a porcine collagen membrane, Vericel; STN BL 125603) IS an FDA-LICENSED cell therapy - and its approved indication is narrow and specific: repair of symptomatic, single or multiple FULL-THICKNESS cartilage defects OF THE KNEE, with or without bone involvement, in adults. It is not approved for osteoarthritis. The existence of one licensed cartilage cell therapy for focal defects is the sharpest available way to show what a licensed 'regeneration' product actually looks like, and how far it is from an injection for a worn joint. US Food and Drug Administration, Center for Biologics Evaluation and Research — [MACI (autologous cultured chondrocytes on porcine collagen membrane)](https://www.fda.gov/vaccines-blood-biologics/cellular-gene-therapy-products/maci-autologous-cultured-chondrocytes-porcine-collagen-membrane). *FDA*, 2024. ## What is regenerative medicine? It means non-surgical shots prepared from blood or bone marrow. The clinic may call them biologic therapies because the material comes from your body. They may aim for less soreness or easier movement. They aren't proof that worn cartilage will grow back. ## Does regenerative therapy help knee soreness? Results aren't the same for everyone. Some people report less soreness or easier movement. Others don't improve. The amount of joint wear and your exam both matter. Ask what result is realistic for your joint. ## When should I stop trying home care alone? Book an exam when sleep, walking, stairs, or reaching keeps getting worse. Don't wait if fever comes with a hot, badly swollen joint. Get prompt care if you can't stand after a fall. ## Is this the same as knee replacement? No. Replacement is an operation for a badly worn joint that limits daily life. Regenerative care doesn't involve joint replacement surgery, and its result is less certain. Asking about one doesn't end a fair talk about the other. ## Does insurance pay for regenerative medicine? Patients often pay for these joint procedures themselves. Coverage isn't certain, so ask your health plan and get the clinic's full price in writing. Find out whether return visits or repeat care cost more. ## Can cartilage regenerate? A non-surgical shot hasn't been shown to rebuild cartilage worn across a joint. A different operation can place lab-grown cartilage cells into one small, deep damaged spot in a knee that isn't worn throughout. Your doctor must decide whether the damaged spot and the rest of the knee make that operation suitable. ## Can bone-on-bone wear still be helped? The X-ray doesn't decide everything. Your soreness, strength, balance, and daily movement matter too. Bad wear calls for an honest surgery talk, even if you also ask about shorter relief. ## Where can I talk with QC Kinetix in Phoenix? PRP is platelet-rich plasma. Staff take a blood draw and spin it so platelets gather. They then place the prepared liquid in the joint as a shot. Concentrated PRP holds more platelets. A visit may lead to a shot, another kind of care, or advice to discuss surgery. At Banner Estrella, Scottsdale, Peoria, and Chandler, QC Kinetix medical providers, the clinic staff who examine you, offer consultations. ## Want the joint looked at? Phoenix-area QC Kinetix clinics offer consultations. Their medical providers, the staff who examine your joint, can discuss non-surgical shots prepared from blood or bone marrow. Choose Banner Estrella, Scottsdale, Chandler, or Peoria based on your drive. One number reaches the team: (602) 837-PAIN. Bring your X-ray if you have one. Be ready to name the daily task you want back. Book a free consultation: --- Clear answers for a joint that still hurts. Direct help with joint soreness, simple home steps, signs that need care and regenerative medicine phoenix options from QC Kinetix. Direct Phoenix guidance on joint soreness, simple home steps, warning signs and non-surgical options. This site is operated by the owners of the QC Kinetix Phoenix-area clinics — Banner Estrella, Scottsdale, Peoria and Chandler — and those owners may benefit when a reader books a consultation. © 2026 Phoenix Joint Decision. General education only, not personal medical advice; urgent warning signs require appropriate medical assessment.