Editorial Commentary: Injected Stem Cells May Not Adhere to Rabbit Cartilage Defects-Adherence May Be Improved Using Direct Application Techniques or Scaffolds.

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

• 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

Abstract (original English)

Adipose-derived stem cells may adhere when properly applied to a cartilage defect in rabbits, whereas injected stem cells may not adhere. Stem cell harvesting, isolation, quantification, typing, and expansion are specific; complex cartilage regeneration remains unproven; and translation to a human model is enigmatic.

Evidence level

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

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