Trial reportKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2012
Platelet-rich plasma intra-articular injections for cartilage degeneration and osteoarthritis: single- versus double-spinning approach.
Trial report in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 4 registered trials, which are not on this map. Cited by 163 papers, 13 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Comparison of Acetaminophen and Platelet-rich Plasma Therapy for the Treatment of Knee Osteoarthritis.
Use of Fresh Platelet-rich Plasma With Concentrated Leukocytes or Fresh Platelet-rich Plasma Without Concentrated Leukocytes for Treating Knee Cartilage Degeneration: a Randomized Controlled Trial
Homologous PRP Versus Placebo in the Infiltrative Treatment of Knee Osteoarthritis in Over 65 Years Old Patients.
Platelet Rich Plasma in Knee Osteoarthritis: Establishing Clinical Guidelines to Predict and Maximize Outcomes
Who cites it
163 citing papers in PubMed, 13 syntheses or guidelines pooled it.
- Comparison of Clinical Efficiency and Safety Between Intra-Articular Injection of Platelet-Rich Plasma and Hyaluronic Acid for Hip Osteoarthritis: A Systematic Review and Meta-Analysis.Pain research & management · 2026Pooled it
- Intra-articular injections of hyaluronic acid versus plasma rich in growth factors (PRGF) for knee osteoarthritis: a meta-analysis of randomised controlled trials : A meta-analysis.Orthopadie (Heidelberg, Germany) · 2025Pooled it
- PRP Injections for the Treatment of Knee Osteoarthritis: The Improvement Is Clinically Significant and Influenced by Platelet Concentration: A Meta-analysis of Randomized Controlled Trials.The American journal of sports medicine · 2025Pooled it
- Platelet-rich plasma with versus without hyaluronic acid for hip osteoarthritis: a systematic review and meta-analysis.Frontiers in bioengineering and biotechnology · 2025Pooled it
- Effect of the use of platelet concentrates on new bone formation in alveolar ridge preservation: a systematic review, meta-analysis, and trial sequential analysis.Clinical oral investigations · 2023Pooled it
- Are leukocyte-poor or multiple injections of platelet-rich plasma more effective than hyaluronic acid for knee osteoarthritis? A systematic review and meta-analysis of randomized controlled trials.Archives of orthopaedic and trauma surgery · 2023Pooled it
- The use of platelet-rich plasma in studies with early knee osteoarthritis versus advanced stages of the disease: a systematic review and meta-analysis of 31 randomized clinical trials.Archives of orthopaedic and trauma surgery · 2023Pooled it
- PRP Injections for the Treatment of Knee Osteoarthritis: A Meta-Analysis of Randomized Controlled Trials.Cartilage · 2021Pooled it
- Platelet-rich plasma injections induce disease-modifying effects in the treatment of osteoarthritis in animal models.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2021Pooled it
- Intra-articular injections of platelet-rich plasma in symptomatic knee osteoarthritis: a consensus statement from French-speaking experts.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2021Pooled it
- Evidence-Based Clinical Efficacy of Leukocyte and Platelet-Rich Fibrin in Maxillary Sinus Floor Lift, Graft and Surgical Augmentation Procedures.Frontiers in surgery · 2020Pooled it
- Osteoarthritis- a systematic review of long-term safety implications for osteoarthritis of the knee.BMC musculoskeletal disorders · 2019Pooled it
- Platelet-rich plasma: why intra-articular? A systematic review of preclinical studies and clinical evidence on PRP for joint degeneration.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2015Pooled it
- A comparative study of the efficacy of single and double centrifuged platelet-rich plasma and placebo (normal saline injection) on pain, ROM, and physical function of patients with knee osteoarthritis: a double-blinded controlled randomized trial with a six-month follow-up.Advances in rheumatology (London, England) · 2026Trial
- Leukocytes Do Not Influence the Safety and Efficacy of Platelet-Rich Plasma Injections for the Treatment of Knee Osteoarthritis: A Double-Blind Randomized Controlled Trial.The American journal of sports medicine · 2024Trial
- Clinical Efficacy of Intra-Articular Injection with P-PRP Versus that of L-PRP in Treating Knee Cartilage Lesion: A Randomized Controlled Trial.Orthopaedic surgery · 2023Trial
- Restoring Study PRGF: a randomized clinical trial on plasma rich in growth factors for knee osteoarthritis.Trials · 2023Trial
- Efficacy of platelet-rich plasma and plasma for symptomatic treatment of knee osteoarthritis: a double-blinded placebo-controlled randomized clinical trial.BMC musculoskeletal disorders · 2021Trial
- The comparison effects of intra-articular injection of Platelet Rich Plasma (PRP), Plasma Rich in Growth Factor (PRGF), Hyaluronic Acid (HA), and ozone in knee osteoarthritis; a one year randomized clinical trial.BMC musculoskeletal disorders · 2021Trial
- Phase II multicenter randomized controlled clinical trial on the efficacy of intra-articular injection of autologous bone marrow mesenchymal stem cells with platelet rich plasma for the treatment of knee osteoarthritis.Journal of translational medicine · 2020Trial
103 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeTo compare the safety and efficacy of two different approaches of platelet-rich plasma (PRP) production methods as intra-articular injection treatment for knee cartilage degenerative lesions and osteoarthritis (OA).
methodsThe study involved 144 symptomatic patients affected by cartilage degenerative lesions and OA. Seventy-two patients were treated with 3 injections of platelet concentrate prepared with a single-spinning procedure (PRGF), the other 72 with 3 injections of PRP obtained with a double-spinning approach. The patients were evaluated prospectively at the enrollment and at 2, 6, and 12 months' follow-up with IKDC, EQ-VAS and Tegner scores; adverse events and patient satisfaction were also recorded.
resultsBoth treatment groups presented a statistically significant improvement in all the scores evaluated at all the follow-up times. Better results were achieved in both groups in younger patients with a lower degree of cartilage degeneration. The comparative analysis showed similar improvements with the two procedures: in particular, IKDC subjective evaluation increased from 45.0 ± 10.1 to 59.0 ± 16.2, 61.3 ± 16.3, and 61.6 ± 16.2 at 2, 6, and 12 months in the PRGF group, and from 42.1 ± 13.5 to 60.8 ± 16.6, 62.5 ± 19.9, and 59.9 ± 20.0 at 2, 6, and 12 months in the PRP group, respectively. Concerning adverse events, more swelling (P = 0.03) and pain reaction (P = 0.0005), were found after PRP injections.
conclusionsAlthough PRP injections produced more pain and swelling reaction with respect to that produced by PRGF, similar results were found at the follow-up times, with a significant clinical improvement with respect to the basal level. Better results were achieved in younger patients with a low degree of cartilage degeneration. LEVEL OF EVIDENCE: II.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.