Why do most surgical incisions require lengthening? How to avoid it.

Wright, J G; Rang, M · Clin Orthop Relat Res · 1992

biomechanical · Level V

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Abstract

When an incision is retracted, it shortens because skin does not actually stretch--it only shifts. A mathematical model accurately predicted operating room experience. Average retraction of 30-50% shortens an incision by 15%. Therefore, an incision to expose fixed bony landmarks should be 15% longer than the distance between them.

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