ArticleJournal of pain research2020
MRI Changes After Platelet Rich Plasma Injection in Knee Osteoarthritis (Randomized Clinical Trial).
Article in Journal of pain research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 3 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
39 citing papers in PubMed, 3 syntheses or guidelines pooled it, 70 citations in OpenAlex.
- Randomized Controlled Trials Studying Nonoperative Treatments of Osteoarthritis Often Use Misleading and Uninformative Control Groups: A Systematic Review.Clinical orthopaedics and related research · 2025Pooled it
- Efficacy and safety of platelet-rich plasma injections for the treatment of osteoarthritis: a systematic review and meta-analysis of randomized controlled trials.Frontiers in medicine · 2023Pooled 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
- Safety and efficacy of placental mesenchymal stromal cells-derived extracellular vesicles in knee osteoarthritis: a randomized, triple-blind, placebo-controlled clinical trial.BMC musculoskeletal disorders · 2024Trial
- Cost-utility analysis and net monetary benefit of Platelet Rich Plasma (PRP), intra-articular injections in compared to Plasma Rich in Growth Factors (PRGF), Hyaluronic Acid (HA) and ozone in knee osteoarthritis in Iran.BMC musculoskeletal disorders · 2023Trial
- Multiple platelet-rich plasma injections are superior to single PRP injections or saline in osteoarthritis of the knee: the 2-year results of a randomized, double-blind, placebo-controlled clinical trial.Archives of orthopaedic and trauma surgery · 2022Trial
- Comparison between the effects of ultrasound guided intra-articular injections of platelet-rich plasma (PRP), high molecular weight hyaluronic acid, and their combination in hip osteoarthritis: a randomized clinical trial.BMC musculoskeletal disorders · 2022Trial
- 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
- Comparative efficacy of ultrasound-guided intra-articular injection of platelet-rich plasma (PRP), hydrolyzed type I collagen, and hyaluronic acid in patients with knee osteoarthritis: a randomized controlled trial.Future science OA · 2026Article
- The efficacy and safety of platelet rich plasma and hyaluronic acid in the treatment of knee osteoarthritis: a meta-analysis.Frontiers in surgery · 2026Review
- Platelet-rich plasma in the management of musculoskeletal disorders: a narrative review of clinical evidence and practical considerations.Frontiers in medicine · 2026Review
- The Impact of Lower Extremity Mechanical Axis Alignment on the Success of Platelet-Rich Plasma Injections in Knee Osteoarthritis Patients.Orthopaedic surgery · 2025Article
- MRI-Based Evaluation of PRP Therapy in Knee Osteoarthritis: WORMS and Synovial Changes at 6 Months.Journal of clinical medicine · 2025Article
- Article
- Platelet rich plasma compared to viscosupplementation in the treatment of knee osteoarthritis: A systematic review and meta-analysis of randomised controlled trials with 6 month and 12 month follow-up.Journal of experimental orthopaedics · 2025Review
- Effect of platelet-rich plasma versus placebo or corticosteroid for knee osteoarthritis: A systematic review and meta-analysis of randomized controlled trials.Journal of clinical orthopaedics and trauma · 2025Review
- 3D-MRI analysis of cartilage thickness changes after PRP injection in medial knee osteoarthritis: A preliminary report.PloS one · 2025Article
- MRI Findings after Injection of Single and Double Centrifuged Platelet-Rich Plasma and Placebo (Normal Saline) in Patients with Knee Osteoarthritis: A Randomized Double-Blind Clinical Trial with Six-Month Follow-Up.The archives of bone and joint surgery · 2025Article
- Randomized Controlled Trials for Platelet-Rich Plasma Use in Knee Osteoarthritis Rarely Report Key Sociodemographic Patient Variables: A Scoping Review.Arthroscopy, sports medicine, and rehabilitation · 2024Article
- Optimal Dosage of Platelet-Rich Plasma Injections in Patients With Osteoarthritis of the Knee: A Scoping Review.Cureus · 2024Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeFew papers have studied the objective effects of PRP on cartilage. In this study, we investigated the effect of PRP on cartilage characteristics by special MRI sequencing in knee osteoarthritis (IRCT registration number: 2014020413442N6). PATIENTS AND
methodsIn this double blind randomized clinical trial, patients with bilateral knees osteoarthritis-grade 1, 2, and 3 were included in the study. Each patient's knees were randomly allocated to either control or treatment groups. PRP was injected in two sessions with 4 week intervals in PRP group. The VAS (visual analog scale) and WOMAC (Western Ontario and McMaster Universities Arthritis Index) were utilized and MRI was performed for all patients, before, and 8 months after treatment. The MRI sequences taken were transverse 3D TRUFISP and coronal and sagittal fat saturated proton-density. Imaging was scored according to four cartilage characteristics.
results46 knees (from 23 patients) were included in this study. 23 knees in the case group and 23 knees in control group were studied. All patients were female with mean age of 57.57±5.9 years. Mean total WOMAC and VAS changes before and after treatment in control group were 11.61±8.5 and 1.3±1.1 respectively. In PRP group, mean total WOMAC and VAS changes showed better improvement with 20±12.3 and 3.2±1.6 respectively (P-value <0.05). In PRP group, all of the radiologic variables (patellofemoral cartilage volume, synovitis and medial and lateral meniscal disintegrity), with the exception of subarticular bone marrow abnormality, had significant improvement (P-value <0.05). In a comparison between the two groups, patellofemoral cartilage volume and synovitis had significantly changed in the PRP group (P-value <0.05).
conclusionIn this study, in addition to the effect of PRP on VAS and WOMAC, there was a significant effect on radiologic characteristics (patellofemoral cartilage volume and synovitis). For further evaluation, a longer study with a larger sample size is recommended.
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