Abstract
The O-to-Z flap is a double-rotation flap that is especially useful for closure on the scalp and forehead. These authors sought to determine the optimal design for O-to-Z flaps, making use of the buttocks, thighs, and trunks of 3 fresh cadavers. They varied the flap angle (acute, 90-degree, and wide), the length of each limb (2-5 defect radii), and the extent of undermining (3-5 defect …
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