Trojan horse technique
The original balloon-expandable stents came from the manufacturer packaged in a small box. To use the stent, an appropriate balloon was selected, and the stent was hand-crimped onto the balloon by the operator. If not mounted properly, stents had the tendency to slip on the balloon when being advanced across a tight stenosis.
The Trojan horse technique minimizes this risk. Instead of pushing the stent across the lesion, the lesion is crossed with a sheath or guiding catheter. The balloon-mounted stent is advanced through the catheter or sheath to the desired location, and then the sheath or catheter is withdrawn to expose the stent in the proper location. In this way, complications related to stent slippage are minimized. This is just one example of how the Trojan horse technique is used. The term applies to the technique in general and can be used to deliver any device in this manner, not just a balloon-expandable stent.