A simple practical model for planning tissue-expanded flaps

Chiu, Tor; Lam, Chuen Kwong; Wong, Sammi Yuen-Shan; Lau, Yuk-Kam; Ying, S.Y; Burd, Andrew

doi:10.1016/j.bjps.2006.11.029

Cited by 1 publication

(2 citation statements)

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“…Most existing studies focus exclusively on flap kinematics and on the resourceful use of grown tissue [8, 25] while neglecting the mechanical effects of forces and stress [40]. Some are solely based on simple model systems of cutting fabric sheets, which cover a circular balloon [11]. Here we simulated and compared the stress profiles for a direct advancement flap and a double back-cut flap [65].…”

Section: Discussionmentioning

confidence: 99%

“…When the device is removed, the newly grown skin is made available for reconstructive purposes through a process called flap design [27]. Careful planning of flap design is key to successful defect repair [11]. Yet, since most efforts of pre-operative planning focus exclusively on kinematic issues [25], flap failure remains a major complication in plastic and reconstructive surgery [38].…”

Section: Motivationmentioning

confidence: 99%

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Computational modeling of skin: Using stress profiles as predictor for tissue necrosis in reconstructive surgery

Tepole

Gosain

Kuhl

2014

Computers & Structures

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Local skin flaps have revolutionized reconstructive surgery. Mechanical loading is critical for flap survival: Excessive tissue tension reduces blood supply and induces tissue necrosis. However, skin flaps have never been analyzed mechanically. Here we explore the stress profiles of two common flap designs, direct advancement flaps and double back-cut flaps. Our simulations predict a direct correlation between regions of maximum stress and tissue necrosis. This suggests that elevated stress could serve as predictor for flap failure. Our model is a promising step towards computer-guided reconstructive surgery with the goal to minimize stress, accelerate healing, minimize scarring, and optimize tissue use.

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