From CalGAP president Sharyn Deeringer:
I have two sons and both have injured their knee’s anterior cruciate ligament (ACL). Similarly, many dogs suffer from cranial cruciate ligament (CCL) problems, a degenerative process. According to Dr. James Cook, veterinarian and orthopedic researcher at the University of Missouri, CCL is “the most common orthopedic injury in dogs,” occurring in “any breed at any age, though it’s most common in larger dogs like Newfoundlands, goldens, Labradors and Rottweilers between the ages of two and nine.”
Dr. Cook point out that the slender greyhounds belong to the only large breed not afflicted with CCL problems.
Reference: Lockman, D. (2008). New surgery repairs dog knees. The Dog Daily. Studio One Networks. Retrieved January 30, 2009 from http://www.ktvn.com/Global/story.asp?S=8931008