Abstract
The rhomboid flap is a versatile random-pattern transposition flap with many clinical applications and has been adapted in many variations. The rhombic area of excision is associated with an area of "waste", while adapting Quaba's "square peg into a round hole" design is associated with the "pin-cushioning" effect. Using trigonometric calculations, we outline the association between different rhombic areas of excision and "waste", and a method to design a classical Limberg rhomboid flap.
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