# Straight answers about joint soreness and treatment *Joint Questions Answered | Regenerative Therapy Tempe* > Regenerative therapy Tempe answers about sore joints, scans, regenerative medicine cost, coverage, treatment choices, and nearby care. Joint soreness raises direct questions about scans, cost, home care, and nearby help. The answers below give general facts. They can't tell exactly what caused one person's sore joint. That takes a health history and an exam. Take the useful questions to your next visit. ## Sources 1. 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. 2. 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. 3. The strongest recent POSITIVE signal: a meta-analysis of 10 RCTs (818 patients, KL I-III) found intra-articular MSC injection beat hyaluronic acid at 12 months on WOMAC total (MD -10.22), VAS (MD -1.31) and on the MRI Whole-Organ Magnetic Resonance Imaging Score (MD -26.01), all reaching the minimal clinically important difference, with no significant difference in adverse events. Recorded here at full weight: this result and the negative RESTORE and Mautner trials are both in the literature, and an honest page reports both. Jin WS, et al. — [Mesenchymal Stem Cells Injection Is More Effective Than Hyaluronic Acid Injection in the Treatment of Knee Osteoarthritis With Similar Safety: A Systematic Review and Meta-analysis.](https://pubmed.ncbi.nlm.nih.gov/39154667/). *Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association*, 2025. DOI: 10.1016/j.arthro.2024.07.027. 4. A 2026 systematic review and meta-analysis of 28 randomized trials of intra-articular mesenchymal stem cell-based therapies in knee OA found significant improvements in several pain and function measures (delta-VAS MD -1.67; KOOS pain MD 15.37) but NO significant difference in WOMAC, KOOS quality of life or the Lequesne index, and MRI-based WORMS scores were non-significant - indicating no consistent structural benefit. Its own conclusion: these therapies serve a primarily SYMPTOM-modifying rather than STRUCTURE-modifying role, with higher frequencies of local reactions to weigh against the symptomatic benefit. Awad G, et al. — [Efficacy and safety of intra-articular mesenchymal stem cell-based therapies in knee osteoarthritis: A systematic review and meta-analysis of randomized controlled trials.](https://pubmed.ncbi.nlm.nih.gov/41863718/). *Clinical rheumatology*, 2026. DOI: 10.1007/s10067-026-08042-w. 5. FORWARD, the longest disease-modifying osteoarthritis drug trial reported to date, gave intra-articular sprifermin (a recombinant FGF-18) or placebo to knee OA patients and followed 378 of them for 5 years. Sprifermin produced a significant, sustained dose-response INCREASE in total femorotibial cartilage thickness versus placebo - and WOMAC pain improved about 50% from baseline in ALL groups, including placebo. It is the cleanest demonstration in the literature that adding measurable cartilage and relieving pain are two different results, and that one does not deliver the other. Eckstein F, et al. — [Long-term structural and symptomatic effects of intra-articular sprifermin in patients with knee osteoarthritis: 5-year results from the FORWARD study.](https://pubmed.ncbi.nlm.nih.gov/33962962/). *Annals of the rheumatic diseases*, 2021. DOI: 10.1136/annrheumdis-2020-219181. 6. A systematic review of the discordance between clinical and radiographic knee osteoarthritis: many people with severe-looking x-rays have little pain, and many with disabling pain have modest radiographic change. This is the reason a post-treatment scan is a poor proxy for how someone feels, in either direction. Bedson J, et al. — [The discordance between clinical and radiographic knee osteoarthritis: a systematic search and summary of the literature.](https://pubmed.ncbi.nlm.nih.gov/18764949/). *BMC musculoskeletal disorders*, 2008. DOI: 10.1186/1471-2474-9-116. 7. 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. ## What does regenerative medicine mean for a sore joint? Regenerative medicine is a broad name for care intended to help the body repair itself. It doesn't mean worn tissue will grow back. QC Kinetix offers non-surgical options made with body material. PRP means platelet-rich plasma. A health worker takes blood, uses a spinning machine to separate more platelets, and gives the resulting liquid as a joint shot. The joint exam happens first. ## What can help joint soreness at home? Gentle movement may prevent a joint from growing stiff. Heat may ease morning soreness, while cold can calm swelling after activity. Rest from the movement that started the trouble. Ask a doctor whether common medicine can be taken safely with your health needs and other drugs. ## When does a sore joint need medical care? Book a visit when soreness keeps limiting sleep, walking, stairs, or dressing. Seek urgent help when a joint is hot, very swollen, and paired with fever. Prompt care also matters after a fall when you can't use the joint. New weakness or numbness needs quick medical attention. ## Can an MRI explain all of the soreness? No. An MRI can show cartilage, the smooth layer over bone ends inside a joint. It also shows a tendon, the strong cord joining muscle to bone. It can't show how the joint felt during sleep or a walk. The doctor compares the MRI with your history and exam. A new scan helps most when its result may change care. ## How should I ask about regenerative medicine cost? Ask for the full price in writing. The estimate needs to name the care and included follow-up visits. Patients often pay for biologic therapies themselves. Here, that term includes the blood-prepared joint care described above. Insurance may cover an exam or scan without covering the procedure. Don't agree while later costs remain unclear. ## Where can I discuss regenerative treatment options near Tempe? The nearest listed location is at 1100 S. Dobson Rd., Suite 210, Chandler, AZ 85286. McClintock Road becomes Dobson Road at the Chandler line. Bring old scan reports, the names of your medicines, and a short note about the activity that hurts. Those facts help the health worker focus the exam. ## Have the sore joint examined before choosing care At a consultation, a medical provider asks about past health, examines the joint, and discusses possible care. Medical provider is a broad term for the health worker you will see. Ask the clinic whether that person is a doctor, nurse practitioner, or physician assistant. Bring earlier X-ray or MRI reports and a short note about the activity that hurts. You can leave knowing what may fit and what needs different care. Book a free consultation: --- Clear facts for a sore joint. Tempe guidance on sore joints, relief at home, reasons to seek care, scans, treatment choices, and nearby QC Kinetix care. Plain information about sore joints, care choices, scans, and nearby QC Kinetix care for Tempe readers. This Tempe publication is operated by the owners of the QC Kinetix Phoenix-area clinics; those clinic owners may benefit when a reader schedules care after using the site. © 2026 Tempe Regenerative Record. General education only; personal imaging and treatment decisions belong with a qualified clinician.