Evidence map›Paper›PMID 41868614›Full record

ReviewJSAMS plus2025

Rock, paper, scissors: Resolving the conflicting results of randomized trials involving corticosteroid, platelet rich plasma (PRP) and placebo injections.

John W Orchard

Abstract readReview
In one paragraph

Review in JSAMS plus, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

1 author.

John W OrchardSchool of Public Health, University of Sydney, Sydney, Australia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objective: To explore whether there is evidence of a rock-paper-scissors phenomenon in injections for various musculoskeletal conditions whereby platelet rich plasma (PRP) injections outperform corticosteroid injections (CSI) in randomized trials, corticosteroid outperforms placebo whereas PRP does not outperform placebo. Methods: Narrative review searching for examples of musculoskeletal conditions which have high level evidence of this proposed rock-paper-scissors phenomenon. Results: High quality studies or reviews could be found for lateral epicondylitis (tennis elbow), knee osteoarthritis, rotator cuff tendinopathy and plantar fasciitis suggestive of a rock-paper-scissors phenomenon. This was consistently in the direction of PRP injections having superior results to corticosteroid injections, corticosteroid injections having superior results to placebo, but then evidence that PRP injections were not superior to placebo. The most consistent result of the triumvirate was that PRP injections consistently outperformed corticosteroid injections in the medium-term (4 to 12 months). Discussion: There appears to be somewhat of a rock-paper-scissors phenomenon for four common musculoskeletal conditions, with the significant limitation that this was a finding of a narrative review, limited by a non-systematic search protocol. The underlying explanation is that PRP is superior to corticosteroid in the medium-term (but not the short-term), corticosteroid is superior to placebo in the short-term (only) with PRP not being superior to placebo in either short- or medium-term in well-blinded trials. The most likely explanation for this phenomenon is that corticosteroid injections are helpful for musculoskeletal conditions in the short term (≤8 weeks) but are actually harmful in the medium-term (3 months and beyond). Systematic reviews which further explore this phenomenon are justified to help provide practical evidence-based advice on when to, if ever, use PRP and corticosteroid injections for musculoskeletal conditions.

Indexed as

InjectionsKnee osteoarthritisPlantar fasciitisRotator cuff tendinopathyTennis elbow

Identifiers

PMID41868614
PMCPMC12980610

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.