Same-store sales as measured by those stores open for at least a year enjoyed a rebound in February for teen clothing company Aeropostale Inc. (NYSE:ARO).

Leading the seven percent increase in sales year-over-year was the new spring line offered by the retailer, which evidently has some pent-up demand for those looking to replenish their wardrobes.

This was good news for the company overall, as expectations from analysts were quite a bit lower, who were looking for same-store growth of about 4 percent.

The positive thing about the good results form same-store sales based on being opened for a year or more is it is a true measurement of the performance of a company because it only measures stores with an existing clientele; leaving out new stores and also stores which closed sometime within the last year.

Sales for the month increased by a healthy 15 percent to reach $126.4 million for February.

Being in a mall environment is also a positive sign going forward, as it's one of the more difficult retail environments to operate in, although for teens that is a little different, as they enjoy hanging out there.

Either way, Aeropostale has to be happy with the February numbers, especially in the recessionary environment we continue to operate and live in.