I went on a £1500 2-day bullshit course to learn this, useless waste of money and time)…One day a genius explained it to me in 5 minutes and it left a mark on my brain and my heart, and I will love him for it always)…
Definition:
Transposition of two interdigitating equal triangles of skin flap.
Indications:
- Release contractor
- Break up a scar
- Change direction of scar
- Deepen a webspace or obliterate a depression
- Move tissue
Design:
- THE SCAR IS THE COMMON LIMB
- TO WORK OUT THE END SCAR, REMEMBER WHERE YOU’VE CUT.
The angle of the z plasty determines the potential gain in length. (25% increase for every 15°)
Angle 30%, gain in length 25%, 45°à50%, 60°à75%, 75%à100%, 90° impossible to transpose.
The smaller the angle, the more difficult for the blood supply, but the better the laxity.
Complications:
Tip necrosis, no laxity so cant move.
Jumping Man Flap
2 Z plasties and 1 V to Y advancement flap
used for concavities e.g. Inner canthus, first webspace
(compared to bi-lobbed flap used for convexity e.g tip of nose, bulk of chin)
Multiple Z plasties
To break up a long scar
2 Z plasties in each other
ABCD becomes the CADBury flap
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