CHAMGAP
VERIFIEDPassed the Codex final verification and publication gate. Evidence-verification cutoff: 2026-07-24. AI was used for research and drafting; the existence of all 3 cited sources was verified at the original page, followed by blind grading, adversarial audit, and build validation. Methodology v1.0.
Verdict No. 1804 · Search date 2026-07-24 · Methodology v1.0

Intra-articular corticosteroid,
does it really help with Short-term improvement in pain and shoulder function in adhesive capsulitis?

30-Second Summary
C
Evidence Grade C · 56 · Safety caution
Injection can improve early frozen-shoulder pain and function, but durable benefit is not established
Transient post-injection pain, flushing, and short-term hyperglycemia can occur; infection is rare but serious. Diabetes, anticoagulation, and infection risk require review.
What the
research shows
Intra-articular corticosteroid is rated C despite improving early pain and function in adhesive capsulitis. Carette randomized 93 and analyzed all 93 by intention to treat with last observation carried forward; the six-week SPADI primary endpoint succeeded at P=.0004. An approximately 27.6-point contrast exceeded the 8-to-13-point SPADI MCID range summarized by Roy 2009, but a sample below 200 and a six-week primary assessment create a B2 ceiling.
What the
ads claim
One-shot cure or durable prevention claims overstate short-term symptom evidence.
*

Useful facts when choosing a product

  • Carette used one fluoroscopically guided intra-articular 40-mg triamcinolone hexacetonide injection.
  • Groups converged by twelve months.
ID

Chamgap Semantic Classification Code

Candidate index · review held

M.intra-articular-corticosteroid-injection.intraarticular.short-term-improvement-in-pain-and-shoulder-function-in-adhesive-capsulitis.improve.placebo

Medicinal interventions > Intra-articular corticosteroid injection > Intra-articular > Short-term improvement in pain and shoulder function in adhesive capsulitis > Improvement claim > Placebo

An automated migration candidate, not an issued permanent code; exact claim scope remains under review. This machine-generated migration candidate helps retrieval but is not a permanent assignment. The original verdict ID and URL remain authoritative.

Download semantic index (JSON) · Codebook v1

Gap Measurement · Verdict 1804 · C 56
What advertising claims
What independent, higher-quality research supports
△ GAP
01

What the research actually shows

Carette randomized 93 participants across four groups and included all 93 in intention-to-treat analysis using last observation carried forward. The six-week SPADI primary assessment succeeded at P=.0004. Funding came from the nonindustry Arthritis Society of Canada. A 2017 meta-analysis of five studies and 225 participants found pain reduction at zero to eight weeks but no difference at nine to twenty-four weeks. Roy 2009 summarized a SPADI MCID range of 8 to 13 points. Verdict 1678, which is D with 28 points, concerns repeated knee injections, while verdict 1577, which is F with 18 points, concerns knee hyaluronic acid; both differ in joint or intervention.

02

Why this is classified as C (56)

P, R2, I2, and E+ are capped by B2 for small size and a six-week primary assessment, giving C with 56 points.

Counterpoint. It may create a short window for rehabilitation when early pain limits exercise.

Rejudgment record. Cross-check applied — Clinically important short-term symptom benefit capped by small size and short duration

Stored scoring profile
EndpointPSymptom or function itself is the target - including patient reports and performance tests
ReplicationR2Independently replicated across trials
IndependenceI2Decisive evidence is publicly or non-profit funded
Effect sizeE+Meets the clinically important threshold

Stored derived and displayed grades match; this is not a current recalculation or validity check (C).

Sub-claim grades by effect

This ingredient is marketed for several effects. A single overall grade blends strong and weak claims together, so each effect is graded separately here. The overall grade reflects the strongest disconfirming or core claim.

Effect (sub-claim)GradeBasis
Pain reduction through eight weeksCPooled benefit is positive but short term.
Short-term shoulder function improvementCThe six-week SPADI effect exceeded MCID.
Durable long-term pain and function improvementDPain was null at nine to twenty-four weeks and groups converged at twelve months.

Cross-check — AI research and Codex final gate

AI was used for research and drafting. Blind grading, adversarial audit, and the methodology boundary rules were then reapplied before Codex performed the final evidence, grade, copy, and build checks. If a grade cannot be narrowed, both evidence positions and their reasons are published.
03

Evidence Table

StudyDesignSampleFundingEndpointResultWeight
Carette S et al. 2003Four-arm randomized placebo-controlled trial93 randomized and 93 analyzed by LOCF intention to treatNonindustry Arthritis Society of Canada fundingSPADI at six weeksOverall P=.0004; primary endpoint metKey short-term trial
Wang W et al. 2017Systematic review and meta-analysisFive studies and 225 participantsAcademic Zhejiang University research; no manufacturer funding reportedPain and range of motionPain benefit at zero to eight weeks, null at nine to twenty-four weeksDuration boundary
§

Receipt — 3 References

All 3 cited sources were verified for existence at the original page (as of 2026-07-24).

Carette S, Moffet H, Tardif J, et al. Intraarticular corticosteroids, supervised physiotherapy, or a combination of the two in the treatment of adhesive capsulitis of the shoulder: a placebo-controlled trial. Arthritis Rheum. 2003;48(3):829-838. PMID: 12632439. DOI: 10.1002/art.10954.
checked
Wang W, Shi M, Zhou C, et al. Effectiveness of corticosteroid injections in adhesive capsulitis of shoulder: a meta-analysis. Medicine (Baltimore). 2017;96(28):e7529. PMID: 28700506. PMCID: PMC5515778. DOI: 10.1097/MD.0000000000007529.
checked
Roy JS, MacDermid JC, Woodhouse LJ. Measuring shoulder function: a systematic review of four questionnaires. Arthritis Rheum. 2009;61(5):623-632. PMID: 19405008. DOI: 10.1002/art.24396.
checked
Research and draft: AI used · Cross-check: blind grading and adversarial audit
Final verification and publication gate: Codex · Evidence date: 2026-07-24 · Corrections: none

Cite this verdict

Intra-articular corticosteroid x short-term pain and function improvement in adhesive capsulitis Evidence Grade C card
[Chamgap] Intra-articular corticosteroid x short-term pain and function improvement in adhesive capsulitis — Evidence Grade C·56. 3 cited sources checked. Source: https://chamgap.com/en/verdicts/joint-bone/intra-articular-corticosteroid-adhesive-capsulitis-short-term-pain-function/ · CC BY 4.0

CC BY 4.0 — free to use with attribution; do not distort grades, numbers, or verdict meaning.

!

What this document does and does not do

Chamgap is an information source. It reports what research has and has not confirmed; it does not tell readers what to take or buy. That decision belongs to readers and, when needed, medical or legal professionals. This verdict reflects literature available up to the search date and may change as new research appears. Nothing here is medical advice.