Facial Fat Grafting: Why, Where, How, and How Much.

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)

Although the importance of volume loss in the aging face is now well recognized and fat grafting has increasingly become an integral part of contemporary facelift procedures, general acceptance of the fat grafting technique is a relatively recent occurrence and many surgeons reluctance to adopt the technique can be traced back in part to questions they have as to how loss of volume contributes to how the face ages, how to specifically recognize those changes, and questions they have about how to perform the fat grafting procedure to correct them. In this article we attempt to answer the questions "why perform facial fat grafting during facelift procedures?", "where should fat be placed in the face?", "how should fat be injected?", and "how much should be injected in each area?". Level of evidence v This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

Evidence level

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

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