Abstract
background. The trapdoor or pincushioning effect is a frequent complication of transposition flaps. Several explanations have been proposed for its occurrence, including lymphatic or venous obstruction, scar hypertrophy, excessive subcutaneous fat or flap tissue, and scar contracture. objective. To study the effects of tissue undermining and scar contracture using a guinea pig animal model. methods. Circular wounds on the dorsal surface of guinea pigs were repaired with transposition paps. Half of the recipient beds were undermined widely and half were not undermined. Animals were observed for evidence of the trapdoor phenomenon. results. Only animals in the group without undermining demonstrated evidence of the trapdoor effect. conclusion. Tissue undermining may prevent the development of the trapdoor effect in transposition flaps. 1993 American Society for Dermatologic Surgery, Inc.
| Original language | English |
|---|---|
| Pages (from-to) | 128-132 |
| Number of pages | 5 |
| Journal | Dermatologic Surgery |
| Volume | 19 |
| Issue number | 2 |
| DOIs | |
| State | Published - Feb 1993 |
| Externally published | Yes |