http://www.humantech.com/blog/pay-attention-to-the-details-identifying-ergonomic-risk/
Using litelift ergonomic trash bags significantly reduces the risk of these kinds of injuries.

Please contact our sales team for more information on how to purchase litelift bags today. 877-575-8840

This article reports on sanitation workers being cut by hidden sharp objects in trash bags.  In 2010 "there were hundreds of separate incidents in which sanitation workers were seriously cut by glass."  litelift bags can significantly reduce these types of injuries.
http://m.timesnewsweekly.com/node/32100
Click the link below to view the full injury report.
http://www.aaem.pl/pdf/9741_91.pdf