ACL (Anterior Cruciate Ligament) Rupture
http://www.peteducation.com/article.cfm?c=2+2084&aid=474
Arthritis -- Degenerative Joint Disease
http://www.peteducation.com/article.cfm?c=2+2084&aid=271
Degenerative Myelopathy
http://www.petwave.com/Dogs/Health/Degenerative-Myelopathy/Symptoms.aspx
Elbow Dysplasia
http://www.peteducation.com/article.cfm?c=2+2084&aid=431
Fibrocartilaginous Embolism (FCE) Injury aka Spinal Stroke
http://www.veterinarypartner.com/Content.plx?A=1663
Hip Dysplasia
http://www.peteducation.com/article.cfm?c=2+2084&aid=444
Laryngeal Paralysis
http://www.peteducation.com/article.cfm?c=2+2096&aid=861
Obesity
http://dogs.about.com/od/caninediseases/p/obesity.htm
http://www.peteducation.com/article.cfm?c=2+1659&aid=694