Evidence map›Paper›PMID 40069655›Full record

SynthesisBMC musculoskeletal disorders2025

Comparison of hyaluronic acid and platelet-rich plasma in knee osteoarthritis: a systematic review.

Hong Xu, Weifeng Shi, Hong Liu, Shasha Chai, Jindi Xu, Qingyu Tu, Jinwei Xu, Wei Zhuang

Abstract readComparative StudyMeta-AnalysisSystematic Review
In one paragraph

Synthesis in BMC musculoskeletal disorders, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed.

  1. Article
  2. Review
  3. Review
  4. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Hong Xu *Department of Orthopaedics, Hangzhou Xiaoshan Hospital of Traditional Chinese Medicine, Hangzhou, Zhejiang Province, China.
Weifeng Shi *Department of Orthopaedics, Hangzhou Xiaoshan Hospital of Traditional Chinese Medicine, Hangzhou, Zhejiang Province, China.
Hong LiuDepartment of Orthopaedics, Hangzhou Xiaoshan Hospital of Traditional Chinese Medicine, Hangzhou, Zhejiang Province, China.
Shasha ChaiDepartment of Orthopaedics, Hangzhou Xiaoshan Hospital of Traditional Chinese Medicine, Hangzhou, Zhejiang Province, China.
Jindi XuDepartment of Orthopaedics, Hangzhou Xiaoshan Hospital of Traditional Chinese Medicine, Hangzhou, Zhejiang Province, China.
Qingyu TuDepartment of Orthopaedics, Hangzhou Xiaoshan Hospital of Traditional Chinese Medicine, Hangzhou, Zhejiang Province, China.
Jinwei XuDepartment of Orthopaedics, Hangzhou Xiaoshan Hospital of Traditional Chinese Medicine, Hangzhou, Zhejiang Province, China. xjw942100@163.com.
Wei ZhuangDepartment of Orthopaedics, Hangzhou Xiaoshan Hospital of Traditional Chinese Medicine, Hangzhou, Zhejiang Province, China. 994397598@qq.com.

Funding

Hangzhou Biomedical and Health Industry Development Support Project 2023WJC063Young Innovative Talents Support Program of Zhejiang Chinese Medicine Science Technology Project 2024025437,2024ZR152Young Innovative Talents Support Program of Zhejiang Medical and Health Science and Technology Project 2022499572
6 · The paper itself

Abstract

backgroundKnee osteoarthritis (KOA) is a common joint disorder, and intra-articular injections of hyaluronic acid (HA) or platelet-rich plasma (PRP) are frequently employed therapeutic interventions. However, there remains controversy regarding their efficacy. This systematic review aims to compare the effectiveness and safety of HA and PRP through a meta-analysis, with the objective of identifying the optimal treatment protocol for KOA and enhancing its management.

methodsRandomized controlled trials evaluating the clinical outcomes of patients receiving intra-articular injections of either HA or PRP were included as eligible studies. Two independent investigators assessed the selected studies and evaluated their risk of bias. Primary outcome measures included the Visual Analog Scale (VAS) score, the Western Ontario and McMaster Universities Arthritis Index (WOMAC) score, and other relevant assessment indices. Dichotomous variables were analyzed using risk ratios (RR) with 95% confidence intervals (CI). Data analysis was conducted using RevMan software (version 5.3).

resultsA total of forty-two randomized controlled trials were included in this meta-analysis. No significant differences were observed between the patient populations in the two groups. The analysis demonstrated that PRP resulted in lower VAS and WOMAC scores compared to HA. Additionally, PRP exhibited superior performance across other evaluation indices. Notably, the incidence of adverse events was higher in the PRP group; however, all reported complications were mild.

conclusionsBased on the current evidence, intra-articular injection of PRP appears to be more effective than HA for the treatment of KOA, as indicated by the analysis of VAS, WOMAC scores, and other evaluation indices.

trial registrationRetrospectively registered.

Indexed as

Hyaluronic AcidOsteoarthritis, KneePlatelet-Rich PlasmaViscosupplementsHumansInjections, Intra-ArticularRandomized Controlled Trials as TopicTreatment OutcomeHyaluronic AcidViscosupplementsHyaluronic acidIntra-articular injectionKnee osteoarthritisMeta-analysisPlatelet-rich plasma

Identifiers

PMID40069655
PMCPMC11895219

What OpenQuestion holds

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Registered trials

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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.