Global delete of trackbacks

Is there any way of deleting trackbacks more speedily than a hundred at a time? I turn trackbacks off as a default in the sites I build because of spam, but one of the other people working on the site turned it on. The site has been turned back over to me and there are something like 6,600 pages of spam trackbacks that I'd like to delete. The largest number of trackbacks I can select is 100 (all crashes the page).