The quotation marks are likely being used because "Bridgepolster" isn't an established term. The term seems to be derived from the use of "bridge" in the following examples, most in connection with Lagerfeld:


http://www.1800blogger.com/2009/03/10/karl-lagerfeld’s-fallw...
Another recent trend that is noticeable is the emphasis of shoulders. However, Lagerfeld revealed an updated version of the classic shoulder pad. “Unlike the shoulder pads of the 1980s, these shoulders don’t jet out horizontally, but rather wrap around the shoulder like a bridge,” Karl Lagerfeld told reporters.


http://www.chinapost.com.tw/life/fashion/2009/03/10/199530/D...
Lagerfeld also gave new importance to the shoulders, a general trend at the ongoing Paris fall-winter shows, but stressed that for him it was not a return to the power-dressing shoulder pads of the 1980s.
He said the shoulderline was a kind of “bridge” which should dictate the silhouette and give the garment movement.

http://www.ifashion.co.za/index.php?option=com_content&task=...
It is impossible to think of the eighties without thinking about shoulder pads. These broad shoulders, dubbed 'the bridge' by John Paul Gaultier, form the basis of the most used silhouette of the season. In most instances, it was combined with a belted waist, softening the powerful and masculine silhouette with more feminine lines.


http://www.wwd.com/fashion-week/fall-ready-to-wear-2009/revi...
They created a strong square shoulder, the “bridge shoulder,” as Lagerfeld called it, that provided a canvas for all things opulent, as in fur and baubled embroidery.


http://www.awnol.com/wholesale-fashion-blog/?cat=22
They created a strong square shoulder, the “bridge shoulder,” as Lagerfeld called it, that provided a canvas for all things opulent, as in fur and baubled embroidery.