Modified Hair Apposition Technique

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From ALiEM – Academic Life in Emergency Medicine

August 18th, 2010

ModifiedHATtrickDiagram

I finally tried the Modified HAT (Hair Apposition Technique) trick for the closure of scalp lacerations. I have used the traditional HAT trick multiple times but not the modified technique.

What’s the difference?

Instead of using your fingers, the modified approach involves the use of two instrument clamps to help twist and pull the hair strands taut. It turns out that this makes a huge difference, especially for short hairs. The clamps allow you to grab the hair strands so much more securely, before instilling a tissue adhesive at the twisting points.

The nice added benefit was that my chubby fingers were now out of the procedural field. This allowed my assistant to more easily see and reach the hair twisting points with the Dermabond applicator.

Check out the finished product of this 2.5 cm laceration on the scalp vertex.

Back Camera

Bottom line

The simple addition of two instrument clamps provides significantly superior control, stronger tensile strength, and better exposure when twisting hair strands together. Try it.

 

 


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