Level B· Emerging clinical evidence with positive signals
Clinical Efficacy of Bone Marrow Aspirate Concentrate Versus Stromal Vascular Fraction Injection in Patients With Knee Osteoarthritis: A Systematic Review and Meta-analysis
Bolia I.K., Bougioukli S., Hill W.J., Weber A.E.
Synthesised clinical studies of a single intra-articular BMAC or SVF injection to compare effect sizes for pain and function.
Level B· Emerging clinical evidence with positive signalsEvidence level of this study
Several human studies show positive signals, while research methods and sample sizes continue to develop.
- Level A · Stronger Clinical Evidence
- Level B · Emerging clinical evidence with positive signals
- Level C · Early human research exploring benefits
- Level D · Scientific groundwork from lab and animal studies
- Emerging · Emerging topic under active research
- Study type
- Meta-analysis
- Journal
- The American Journal of Sports Medicine (2022)
- Country
- United States
- Sample size
- —
- Follow-up
- Varied across included studies
- PMID
- 34102078
- DOI
- 10.1177/03635465211014500
What was studied
Whether BMAC or SVF offers superior clinical outcomes in knee osteoarthritis.
Methods
- • Conducted per PRISMA using a random-effects model reporting standardized mean differences.
- • Studies using culture-expanded cells were excluded.
Key findings
- • Both approaches were associated with improved VAS and WOMAC versus baseline.
- • No clear conclusion that either therapy is superior to the other.
Limitations
- • Included studies were predominantly level 4 evidence.
- • Mostly indirect comparisons rather than head-to-head trials.
What this study does not prove
- • This study does not prove SVF is an approved treatment or a replacement for standard care.
- • Limited follow-up cannot indicate long-term outcomes.
Clinical interpretation
Offers a comparison of the two products, but the quality of source evidence limits conclusions.
Evidence level: Emerging clinical evidence with positive signals